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Chen C, Sun Z, Wang Z, Shin S, Berrios A, Mellors JW, Dimitrov DS, Li W. Identification of a Fully Human Antibody VH Domain Targeting Anaplastic Lymphoma Kinase (ALK) with Applications in ALK-Positive Solid Tumor Immunotherapy. Antibodies (Basel) 2024; 13:39. [PMID: 38804307 PMCID: PMC11130946 DOI: 10.3390/antib13020039] [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: 03/01/2024] [Revised: 04/03/2024] [Accepted: 04/12/2024] [Indexed: 05/29/2024] Open
Abstract
The anaplastic lymphoma kinase (ALK, CD247) is a potential target for antibody-based therapy. However, no antibody-based therapeutics targeting ALK have entered clinical trials, necessitating the development of novel antibodies with unique therapeutic merits. Single-domain antibodies (sdAb) bear therapeutic advantages compared to the full-length antibody including deeper tumor penetration, cost-effective production and fast washout from normal tissues. In this study, we identified a human immunoglobulin heavy chain variable domain (VH domain) (VH20) from an in-house phage library. VH20 exhibits good developability and high specificity with no off-target binding to ~6000 human membrane proteins. VH20 efficiently bound to the glycine-rich region of ALK with an EC50 of 0.4 nM and a KD of 6.54 nM. Both VH20-based bispecific T cell engager (TCE) and chimeric antigen receptor T cells (CAR Ts) exhibited potent cytolytic activity to ALK-expressing tumor cells in an ALK-dependent manner. VH20 CAR Ts specifically secreted proinflammatory cytokines including IL-2, TNFα and IFNγ after incubation with ALK-positive cells. To our knowledge, this is the first reported human single-domain antibody against ALK. Our in vitro characterization data indicate that VH20 could be a promising ALK-targeting sdAb with potential applications in ALK-expressing tumors, including neuroblastoma (NBL) and non-small cell lung cancer.
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Affiliation(s)
- Chuan Chen
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School, Pittsburgh, PA 15261, USA; (C.C.); (Z.S.); (S.S.); (J.W.M.)
| | - Zehua Sun
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School, Pittsburgh, PA 15261, USA; (C.C.); (Z.S.); (S.S.); (J.W.M.)
| | - Zening Wang
- Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, TX 77030, USA;
| | - Seungmin Shin
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School, Pittsburgh, PA 15261, USA; (C.C.); (Z.S.); (S.S.); (J.W.M.)
| | - Abigail Berrios
- Department of Biological Sciences, University of Pittsburgh Kenneth P. Dietrich School of Arts and Sciences, Pittsburgh, PA 15260, USA;
| | - John W. Mellors
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School, Pittsburgh, PA 15261, USA; (C.C.); (Z.S.); (S.S.); (J.W.M.)
| | - Dimiter S. Dimitrov
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School, Pittsburgh, PA 15261, USA; (C.C.); (Z.S.); (S.S.); (J.W.M.)
| | - Wei Li
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School, Pittsburgh, PA 15261, USA; (C.C.); (Z.S.); (S.S.); (J.W.M.)
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Zhang Y, Zou W, Dou W, Luo H, Ouyang X. Pleiotropic physiological functions of Piezo1 in human body and its effect on malignant behavior of tumors. Front Physiol 2024; 15:1377329. [PMID: 38690080 PMCID: PMC11058998 DOI: 10.3389/fphys.2024.1377329] [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: 01/27/2024] [Accepted: 04/02/2024] [Indexed: 05/02/2024] Open
Abstract
Mechanosensitive ion channel protein 1 (Piezo1) is a large homotrimeric membrane protein. Piezo1 has various effects and plays an important and irreplaceable role in the maintenance of human life activities and homeostasis of the internal environment. In addition, recent studies have shown that Piezo1 plays a vital role in tumorigenesis, progression, malignancy and clinical prognosis. Piezo1 is involved in regulating the malignant behaviors of a variety of tumors, including cellular metabolic reprogramming, unlimited proliferation, inhibition of apoptosis, maintenance of stemness, angiogenesis, invasion and metastasis. Moreover, Piezo1 regulates tumor progression by affecting the recruitment, activation, and differentiation of multiple immune cells. Therefore, Piezo1 has excellent potential as an anti-tumor target. The article reviews the diverse physiological functions of Piezo1 in the human body and its major cellular pathways during disease development, and describes in detail the specific mechanisms by which Piezo1 affects the malignant behavior of tumors and its recent progress as a new target for tumor therapy, providing new perspectives for exploring more potential effects on physiological functions and its application in tumor therapy.
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Affiliation(s)
- Yihan Zhang
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, Jiangxi Medical College, Nanchang University, Nanchang, China
- The Second Clinical Medicine School, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Wen Zou
- The Second Clinical Medicine School, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Wenlei Dou
- The Second Clinical Medicine School, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Hongliang Luo
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Xi Ouyang
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, Jiangxi Medical College, Nanchang University, Nanchang, China
- The Second Clinical Medicine School, Jiangxi Medical College, Nanchang University, Nanchang, China
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Swain SM, Liddle RA. Mechanosensing Piezo channels in gastrointestinal disorders. J Clin Invest 2023; 133:e171955. [PMID: 37781915 PMCID: PMC10541197 DOI: 10.1172/jci171955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023] Open
Abstract
All cells in the body are exposed to physical force in the form of tension, compression, gravity, shear stress, or pressure. Cells convert these mechanical cues into intracellular biochemical signals; this process is an inherent property of all cells and is essential for numerous cellular functions. A cell's ability to respond to force largely depends on the array of mechanical ion channels expressed on the cell surface. Altered mechanosensing impairs conscious senses, such as touch and hearing, and unconscious senses, like blood pressure regulation and gastrointestinal (GI) activity. The GI tract's ability to sense pressure changes and mechanical force is essential for regulating motility, but it also underlies pain originating in the GI tract. Recent identification of the mechanically activated ion channels Piezo1 and Piezo2 in the gut and the effects of abnormal ion channel regulation on cellular function indicate that these channels may play a pathogenic role in disease. Here, we discuss our current understanding of mechanically activated Piezo channels in the pathogenesis of pancreatic and GI diseases, including pancreatitis, diabetes mellitus, irritable bowel syndrome, GI tumors, and inflammatory bowel disease. We also describe how Piezo channels could be important targets for treating GI diseases.
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Gargalionis AN, Papavassiliou KA, Papavassiliou AG. Mechanobiology of solid tumors. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166555. [PMID: 36150659 DOI: 10.1016/j.bbadis.2022.166555] [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: 07/11/2022] [Revised: 08/22/2022] [Accepted: 09/16/2022] [Indexed: 10/14/2022]
Abstract
Mechanical features of cancer cells emerge as a distinct trait during development and progression of solid tumors. Herein, we discuss recent key findings regarding the impact of various types of mechanical stresses on cancer cell properties. Data suggest that different mechanical forces, alterations of matrix rigidity and tumor microenvironment facilitate cancer hallmarks, especially invasion and metastasis. Moreover, a subset of mechanosensory proteins are responsible for mediating mechanically induced oncogenic signaling and response to chemotherapy. Delineating cancer dynamics and decoding of respective signal transduction mechanisms will provide new therapeutic strategies against solid tumors in the future.
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Affiliation(s)
- Antonios N Gargalionis
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens 11527, Greece.
| | - Kostas A Papavassiliou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens 11527, Greece
| | - Athanasios G Papavassiliou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens 11527, Greece.
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