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Waryah C, Alves E, Mazzieri R, Dolcetti R, Thompson EW, Redfern A, Blancafort P. Unpacking the Complexity of Epithelial Plasticity: From Master Regulator Transcription Factors to Non-Coding RNAs. Cancers (Basel) 2023; 15:3152. [PMID: 37370762 DOI: 10.3390/cancers15123152] [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: 03/22/2023] [Revised: 06/09/2023] [Accepted: 06/10/2023] [Indexed: 06/29/2023] Open
Abstract
Cellular plasticity in cancer enables adaptation to selective pressures and stress imposed by the tumor microenvironment. This plasticity facilitates the remodeling of cancer cell phenotype and function (such as tumor stemness, metastasis, chemo/radio resistance), and the reprogramming of the surrounding tumor microenvironment to enable immune evasion. Epithelial plasticity is one form of cellular plasticity, which is intrinsically linked with epithelial-mesenchymal transition (EMT). Traditionally, EMT has been regarded as a binary state. Yet, increasing evidence suggests that EMT involves a spectrum of quasi-epithelial and quasi-mesenchymal phenotypes governed by complex interactions between cellular metabolism, transcriptome regulation, and epigenetic mechanisms. Herein, we review the complex cross-talk between the different layers of epithelial plasticity in cancer, encompassing the core layer of transcription factors, their interacting epigenetic modifiers and non-coding RNAs, and the manipulation of cancer immunogenicity in transitioning between epithelial and mesenchymal states. In examining these factors, we provide insights into promising therapeutic avenues and potential anti-cancer targets.
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Affiliation(s)
- Charlene Waryah
- Cancer Epigenetics Group, Harry Perkins Institute of Medical Research, Perth, WA 6009, Australia
- School of Human Sciences, University of Western Australia, Perth, WA 6009, Australia
| | - Eric Alves
- Cancer Epigenetics Group, Harry Perkins Institute of Medical Research, Perth, WA 6009, Australia
- School of Human Sciences, University of Western Australia, Perth, WA 6009, Australia
| | - Roberta Mazzieri
- Peter MacCallum Cancer Centre, Melbourne, VIC 3000, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC 3010, Australia
| | - Riccardo Dolcetti
- Peter MacCallum Cancer Centre, Melbourne, VIC 3000, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC 3010, Australia
- Department of Microbiology and Immunology, The University of Melbourne, Melbourne, VIC 3010, Australia
| | - Erik W Thompson
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, QLD 4059, Australia
- Translational Research Institute, Brisbane, QLD 4102, Australia
| | - Andrew Redfern
- School of Medicine, University of Western Australia, Perth, WA 6009, Australia
| | - Pilar Blancafort
- Cancer Epigenetics Group, Harry Perkins Institute of Medical Research, Perth, WA 6009, Australia
- School of Human Sciences, University of Western Australia, Perth, WA 6009, Australia
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Wu HY, Li KX, Pan WY, Guo MQ, Qiu DZ, He YJ, Li YH, Huang YX. Venetoclax enhances NK cell killing sensitivity of AML cells through the NKG2D/NKG2DL activation pathway. Int Immunopharmacol 2022; 104:108497. [PMID: 34999394 DOI: 10.1016/j.intimp.2021.108497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 12/20/2021] [Accepted: 12/20/2021] [Indexed: 01/19/2023]
Abstract
BACKGROUND Venetoclax, a selective B-cell lymphoma-2 (BCL2) inhibitor, has a potential therapeutic effect when combined with demethylating agents in the first-line setting of unfit elderly patients with acute myeloid leukaemia (AML); however, efficacy is still limited in refractory/recurrent AML. Therefore, exploration of a suitable novel treatment scheme is urgently needed.However, combining venetoclax with NK cell-based immunotherapy has not been studied. METHODS The cytotoxicity of NK cell combined with venetoclax was assessed in vitro using flow cytometry. Venetoclax-induced natural killer group 2 member D (NKG2D) ligand (NKG2DL) expression was detected by flow cytometry and western blotting. Mechanisms underlying venetoclax-induced NKG2DL expression were found by GSE127200 analysis and investigated using real-time PCR (Q-PCR) and western blotting. RESULTS Flow cytometric analysis showed that combining venetoclax with NK cells produced synergistic anti-leukaemia effects similar to those of venetoclax + azacitidine. Venetoclax could render AML cell lines and primary AML cells sensitive to NK cell killing by promoting NK cell degranulation, NK-AML cell recognition and NK cell secretion of interferon (IFN)-γ and granzyme B. The synergistic effect resulted from venetoclax-induced NKG2DL upregulation in AML cells and could be undermined by blocking NKG2D on NK cells. This finding suggests that venetoclax enhances NK cell killing activity by activating the NKG2D/NKG2DL ligand-receptor pathway. Furthermore, the nuclear factor-kappa-B (NFKB) signalling pathway was involved in venetoclax-induced NKG2DL upregulation. CONCLUSIONS Collectively, our data confirm that venetoclax combined with NK cells induces synergistic AML cell cytolysis and preliminarily revealed that venetoclax could selectively induce NKG2DLs on AML cells via NFKB signalling pathway.
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Affiliation(s)
- Hui-Yang Wu
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, China
| | - Ke-Xin Li
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, China
| | - Wan-Ying Pan
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, China
| | - Meng-Qi Guo
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, China
| | - Dei-Zhi Qiu
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, China
| | - Yan-Jie He
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, China
| | - Yu-Hua Li
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, China
| | - Yu-Xian Huang
- Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, China.
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