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Chen J, Tang S, Zheng Q, Li J, Jiang H, Lu H, Liao G, Li K, Liang Y. The competitive mechanism of EZH1 and EZH2 in promoting oral squamous cell carcinoma. Exp Cell Res 2024; 436:113957. [PMID: 38309675 DOI: 10.1016/j.yexcr.2024.113957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/23/2024] [Accepted: 01/30/2024] [Indexed: 02/05/2024]
Abstract
Enhancer of Zeste Homolog 1 (EZH1) and Enhancer of Zeste Homolog 2 (EZH2) are the key components of polycomb repressive complex 2 (PRC2); however, the roles of these proteins in oral squamous cell carcinoma (OSCC) have yet to be elucidated. In this study, we aimed to determine the respective roles of these proteins in OSCC by investigating the expression levels of EZH1 and EZH2 in OSCC tissues (N = 63) by immunohistochemistry. In addition, we used lentiviruses to construct stable OSCC cell lines that overexpressed EZH1 and EZH2. Then, we investigated these cell lines for cell viability, colony formation capacity, stemness, and epithelial-mesenchymal transition (EMT). Binding competition between EZH1 and EZH2 with PRC2 was further evaluated using Co-immunoprecipitation (Co-IP). Compared with normal tissues, the expression levels of EZH2 in OSCC tissues was up-regulated, while the expression of EZH1 was down-regulated. EZH2 enhanced cell viability, colony formation capacity, stemness, and EMT, while EZH1 did not. Furthermore, analysis indicated that EZH1 and EZH2 bound competitively to PRC2 and influenced the methylation status of H3K27. In conclusion, our findings verified that EZH1 and EZH2 play opposing roles in OSCC and that EZH1 and EZH2 compete as the key component of PRC2, thus affecting the characteristics of OSCC via the methylation of H3K27.
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Affiliation(s)
- Jianghai Chen
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, 56 Ling-yuan West Street, Guangzhou, 510000, China; Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Zhong-Shan Er Road 74, Guangzhou, 510080, China
| | - Shanshan Tang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, 56 Ling-yuan West Street, Guangzhou, 510000, China; Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Zhong-Shan Er Road 74, Guangzhou, 510080, China
| | - Qiuhan Zheng
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, 56 Ling-yuan West Street, Guangzhou, 510000, China; Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Zhong-Shan Er Road 74, Guangzhou, 510080, China
| | - Jingyuan Li
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, 56 Ling-yuan West Street, Guangzhou, 510000, China; Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Zhong-Shan Er Road 74, Guangzhou, 510080, China
| | - Hong Jiang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, 56 Ling-yuan West Street, Guangzhou, 510000, China; Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Zhong-Shan Er Road 74, Guangzhou, 510080, China
| | - Huanzi Lu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, 56 Ling-yuan West Street, Guangzhou, 510000, China; Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Zhong-Shan Er Road 74, Guangzhou, 510080, China
| | - Guiqing Liao
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, 56 Ling-yuan West Street, Guangzhou, 510000, China; Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Zhong-Shan Er Road 74, Guangzhou, 510080, China.
| | - Kan Li
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, 56 Ling-yuan West Street, Guangzhou, 510000, China; Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Zhong-Shan Er Road 74, Guangzhou, 510080, China.
| | - Yujie Liang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, 56 Ling-yuan West Street, Guangzhou, 510000, China; Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Zhong-Shan Er Road 74, Guangzhou, 510080, China.
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Li X, Yuan P, Yang H, Zong X, Yang C, Chen X, Li Y, Yan X, Wen Y, Zhu T, Zhang Q, Xue W, Dai J. Virus-Like Nanotherapeutic for Spatiotemporally Enhancing Antigen Presentation and Cross-Presentation toward Potential Personalized Immunotherapy. Adv Healthc Mater 2023; 12:e2300921. [PMID: 37531246 DOI: 10.1002/adhm.202300921] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 07/13/2023] [Indexed: 08/04/2023]
Abstract
One of the major causes of immunotherapy resistance is the loss of major histocompatibility complex class I (MHC-I) molecules in tumor cells or the downregulation of the class I antigen presentation pathway. In this study, a novel virus-like nanotherapeutic (siRNA@HCM) is developed via encapsulating nanosized siRNA nanoparticles in a hybrid membrane comprising a personalized tumor cell membrane and a universal 293T membrane expressing the mutant vesicular stomatitis virus glycoprotein (mVSV-G). Upon intravenous administration, siRNA@HCM accumulates at the tumor site and provides two potent driving forces for antitumor immunity. First, mVSV-G induces the fusion of siRNA@HCM with tumor cell membranes and directly injects siRNAs into the cytoplasm, significantly improving tumor intrinsic MHC-I antigen presentation. Moreover, mVSV-G can promote the maturation of dendritic cells, thereby achieving highly efficient antigen cross-presentation. The results demonstrate that spatiotemporally enhancing tumor intrinsic antigen presentation and cross-presentation via siRNA@HCM can achieve satisfactory antitumor efficacy and excellent biocompatibility. Immune infiltration analysis shows that siRNA@HCM treatment turns cold tumors into hot tumors. In addition, it significantly promotes the therapeutic effect of programmed death-1 inhibitor. In summary, virus-like nanotherapeutics present a promising approach to enhance the antitumor immune response, with distinct advantages for potential personalized therapy and clinical applications.
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Affiliation(s)
- Xiaodi Li
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Engineering Technology Research Center of Drug Carrier of Guangdong, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
| | - Pengfei Yuan
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Engineering Technology Research Center of Drug Carrier of Guangdong, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
| | - Haiyuan Yang
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Engineering Technology Research Center of Drug Carrier of Guangdong, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
| | - Xiaoqing Zong
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Engineering Technology Research Center of Drug Carrier of Guangdong, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
| | - Caiqi Yang
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Engineering Technology Research Center of Drug Carrier of Guangdong, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
| | - Xinjie Chen
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Engineering Technology Research Center of Drug Carrier of Guangdong, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
| | - Yuchao Li
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Engineering Technology Research Center of Drug Carrier of Guangdong, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
| | - Xiaodie Yan
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Engineering Technology Research Center of Drug Carrier of Guangdong, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
| | - Yaoqi Wen
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Engineering Technology Research Center of Drug Carrier of Guangdong, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
| | - Tianci Zhu
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Engineering Technology Research Center of Drug Carrier of Guangdong, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
| | - Qian Zhang
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Engineering Technology Research Center of Drug Carrier of Guangdong, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
| | - Wei Xue
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Engineering Technology Research Center of Drug Carrier of Guangdong, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
| | - Jian Dai
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Engineering Technology Research Center of Drug Carrier of Guangdong, Department of Biomedical Engineering, Jinan University, Guangzhou, 510632, China
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Dhanalakshmi M, Sruthi D, Jinuraj KR, Das K, Dave S, Andal NM, Das J. Mannose: a potential saccharide candidate in disease management. Med Chem Res 2023; 32:391-408. [PMID: 36694836 PMCID: PMC9852811 DOI: 10.1007/s00044-023-03015-z] [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: 11/05/2022] [Accepted: 01/04/2023] [Indexed: 01/21/2023]
Abstract
There are a plethora of antibiotic resistance cases and humans are marching towards another big survival test of evolution along with drastic climate change and infectious diseases. Ever since the first antibiotic [penicillin], and the myriad of vaccines, we were privileged to escape many infectious disease threats. The survival technique of pathogens seems rapidly changing and sometimes mimicking our own systems in such a perfect manner that we are left unarmed against them. Apart from searching for natural alternatives, repurposing existing drugs more effectively is becoming a familiar approach to new therapeutic opportunities. The ingenious use of revolutionary artificial intelligence-enabled drug discovery techniques is coping with the speed of such alterations. D-Mannose is a great hope as a nutraceutical in drug discovery, against CDG, diabetes, obesity, lung disease, and autoimmune diseases and recent findings of anti-tumor activity make it interesting along with its role in drug delivery enhancing techniques. A very unique work done in the present investigation is the collection of data from the ChEMBL database and presenting the targetable proteins on pathogens as well as on humans. It shows Mannose has 50 targets and the majority of them are on human beings. The structure and conformation of certain monosaccharides have a decisive role in receptor pathogen interactions and here we attempt to review the multifaceted roles of Mannose sugar, its targets associated with different diseases, as a natural molecule having many success stories as a drug and future hope for disease management. Graphical abstract
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Affiliation(s)
- M. Dhanalakshmi
- Research and Development Centre, Bharathiar University, Coimbatore, 641046 Tamil Nadu India
| | - D. Sruthi
- Department of Biochemistry, Indian Institute of Science, Bengaluru, 560012 India
| | - K. R. Jinuraj
- OSPF-NIAS Drug Discovery Lab, NIAS, IISc Campus, Bengaluru, 560012 India
| | - Kajari Das
- Department of Biotechnology, College of Basic Science and Humanities, Odisha University of Agriculture and Technology, Bhubaneswar-3, Odisha India
| | - Sushma Dave
- Department of Applied Sciences, JIET, Jodhpur, Rajasthan India
| | - N. Muthulakshmi Andal
- Department of Chemistry, PSGR Krishnammal College for Women, Coimbatore, 641004 Tamil Nadu India
| | - Jayashankar Das
- Valnizen Healthcare, Vile Parle West, Mumbai, 400056 Maharashtra India
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