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Jiang J, Li X, Zhang C, Wang J, Li J. Anti-cancer effects of Coix seed extract through KCTD9-mediated ubiquitination of TOP2A in lung adenocarcinoma. Cell Div 2024; 19:6. [PMID: 38374109 PMCID: PMC10877835 DOI: 10.1186/s13008-024-00112-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 02/16/2024] [Indexed: 02/21/2024] Open
Abstract
BACKGROUND Coix seed extract (CSE), a traditional Chinese medicine, has been reported as an adjunctive therapy in cancers. However, the molecular targets are largely unclear. The study is designed to unveil its function in lung adenocarcinoma (LUAD) and the possible molecular mechanism. METHODS The HERB database was utilized to predict the molecular targets of the Coix seed, followed by prognostic value prediction in the Kaplan-Meier Plotter database. LUAD cells were infected with sh-KCTD9 after co-culture with CSE, and cell viability, growth, proliferation, and apoptosis were determined. The substrates of KCTD9 were predicted using a protein-protein interaction network and verified. The expression of PD-L1, the contents of TNF-α, IFN-γ, CXCL10, and CXCL9 in the co-culture system of LUAD cells and T cells and the proliferation of T cells were evaluated to study the immune escape of LUAD cells in response to CSE and sh-KCTD9. Lastly, tumor growth and immune escape were observed in tumor-bearing mice. RESULTS CSE inhibited malignant behavior and immune escape of LUAD cells, and the reduction of KCTD9 reversed the inhibitory effect of CSE on malignant behavior and immune escape of LUAD cells. Knockdown of KCTD9 expression inhibited ubiquitination modification of TOP2A, and knockdown of TOP2A suppressed immune escape of LUAD cells in the presence of knockdown of KCTD9. CSE exerted anticancer effects in mice, but the reduction of KCTD9 partially compromised the anticancer effect of CSE. CONCLUSION CSE inhibits immune escape and malignant progression of LUAD through KCTD9-mediated ubiquitination modification of TOP2A.
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Affiliation(s)
- Jiuyang Jiang
- Department of Thoracic Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, People's Republic of China
| | - Xue Li
- Department of Internal Medicine, Daoli District People's Hospital, Harbin, 150016, Heilongjiang, People's Republic of China
| | - Chun Zhang
- Department of Traditional Chinese Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, People's Republic of China
| | - Jiafu Wang
- Department of PET-CT, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, Heilongjiang, People's Republic of China
| | - Jin Li
- Department of Traditional Chinese Medicine, The Fourth Affiliated Hospital of Harbin Medical University Songbei, No. 766, Xiang'an North Street, Songbei District, Harbin, 150070, Heilongjiang, People's Republic of China.
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Sloan DC, Cryan CE, Muntean BS. Multiple potassium channel tetramerization domain (KCTD) family members interact with Gβγ, with effects on cAMP signaling. J Biol Chem 2023; 299:102924. [PMID: 36736897 DOI: 10.1016/j.jbc.2023.102924] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 01/04/2023] [Accepted: 01/05/2023] [Indexed: 02/04/2023] Open
Abstract
G protein-coupled receptors (GPCRs) initiate an array of intracellular signaling programs by activating heterotrimeric G proteins (Gα and Gβγ subunits). Therefore, G protein modifiers are well positioned to shape GPCR pharmacology. A few members of the potassium channel tetramerization domain (KCTD) protein family have been found to adjust G protein signaling through interaction with Gβγ. However, comprehensive details on the KCTD interaction with Gβγ remain unresolved. Here, we report that nearly all the 25 KCTD proteins interact with Gβγ. In this study, we screened Gβγ interaction capacity across the entire KCTD family using two parallel approaches. In a live cell bioluminescence resonance energy transfer-based assay, we find that roughly half of KCTD proteins interact with Gβγ in an agonist-induced fashion, whereas all KCTD proteins except two were found to interact through coimmunoprecipitation. We observed that the interaction was dependent on an amino acid hot spot in the C terminus of KCTD2, KCTD5, and KCTD17. While KCTD2 and KCTD5 require both the Bric-à-brac, Tramtrack, Broad complex domain and C-terminal regions for Gβγ interaction, we uncovered that the KCTD17 C terminus is sufficient for Gβγ interaction. Finally, we demonstrated the functional consequence of the KCTD-Gβγ interaction by examining sensitization of the adenylyl cyclase-cAMP pathway in live cells. We found that Gβγ-mediated sensitization of adenylyl cyclase 5 was blunted by KCTD. We conclude that the KCTD family broadly engages Gβγ to shape GPCR signal transmission.
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Zhang X, Zhu L, Zhou Y, Shi A, Wang H, Han M, Wan X, Kilonzo SB, Luo X, Chen T, Ning Q. Interference with KCTD9 inhibits NK cell activation and ameliorates fulminant liver failure in mice. BMC Immunol 2018; 19:20. [PMID: 29940856 PMCID: PMC6019787 DOI: 10.1186/s12865-018-0256-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Accepted: 06/11/2018] [Indexed: 12/31/2022] Open
Abstract
Background Potassium channel tetramerisation domain containing 9 (KCTD9), a member of KCTD family with a DNA-like pentapeptide repeat domain, was found to be increased particularly in NK cells of patients with HBV-induced acute-on-chronic liver failure (HBV-ACLF) and experimental viral fulminant hepatitis. Knockdown of KCTD9 in immortalized NK cells inhibits cytokines production and cytotoxicity. As NK cell activation was shown to exacerbate liver damage in viral fulminant hepatitis, we propose that target inhibition of KCTD9 may prohibit NK cells activity and thus ameliorate liver damage in viral fulminant hepatitis. Result Hydrodynamic delivery of plasmid expressing short-hairpin RNA against KCTD9 resulted in impaired NK cells function as demonstrated by reduced cytokine production and cytotoxicity, and ameliorated liver injury as manifested by improved liver histology and survival rate. In contrast, delivery of plasmid expressing KCTD9 led to deteriorated disease progression. Conclusion Interference with KCTD9 expression exert beneficial effect in viral fulminant hepatitis therapy. Such effect may be mediated by impairment of NK cell activation. Electronic supplementary material The online version of this article (10.1186/s12865-018-0256-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiaoping Zhang
- Institute of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, # 1095 Jiefang Avenue, Wuhan, 430030, People's Republic of China
| | - Lin Zhu
- Institute of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, # 1095 Jiefang Avenue, Wuhan, 430030, People's Republic of China.,Department of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yaoyong Zhou
- Institute of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, # 1095 Jiefang Avenue, Wuhan, 430030, People's Republic of China
| | - Aichao Shi
- Institute of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, # 1095 Jiefang Avenue, Wuhan, 430030, People's Republic of China
| | - Hongwu Wang
- Institute of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, # 1095 Jiefang Avenue, Wuhan, 430030, People's Republic of China.,Department of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Meifang Han
- Institute of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, # 1095 Jiefang Avenue, Wuhan, 430030, People's Republic of China.,Department of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoyang Wan
- Institute of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, # 1095 Jiefang Avenue, Wuhan, 430030, People's Republic of China
| | - Semvua Bukheti Kilonzo
- Institute of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, # 1095 Jiefang Avenue, Wuhan, 430030, People's Republic of China
| | - Xiaoping Luo
- Department of Pediatric Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Chen
- Institute of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, # 1095 Jiefang Avenue, Wuhan, 430030, People's Republic of China. .,Department of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Qin Ning
- Institute of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, # 1095 Jiefang Avenue, Wuhan, 430030, People's Republic of China. .,Department of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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