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Huang S, Hu J, Hu M, Hou Y, Zhang B, Liu J, Liu X, Chen Z, Wang L. Cooperation between SIX1 and DHX9 transcriptionally regulates integrin-focal adhesion signaling mediated metastasis and sunitinib resistance in KIRC. Oncogene 2024; 43:2951-2969. [PMID: 39174859 DOI: 10.1038/s41388-024-03126-w] [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] [Received: 02/11/2024] [Revised: 08/02/2024] [Accepted: 08/06/2024] [Indexed: 08/24/2024]
Abstract
High invasive capacity and acquired tyrosine kinase inhibitors (TKI) resistance of kidney renal clear cell carcinoma (KIRC) cells remain obstacles to prolonging the survival time of patients with advanced KIRC. In the present study, we reported that sine oculis homeobox 1 (SIX1) was upregulated in sunitinib-resistant KIRC cells and metastatic KIRC tissues. Subsequently, we found that SIX1 mediated metastasis and sunitinib resistance via Focal adhesion (FA) signaling, and knockdown of SIX1 enhanced the antitumor efficiency of sunitinib in KIRC. Mechanistically, Integrin subunit beta 1 (ITGB1), an upstream gene of FA signaling, was a direct transcriptional target of SIX1. In addition, we showed that DExH-box helicase 9 (DHX9) was an important mediator for SIX1-induced ITGB1 transcription, and silencing the subunits of SIX1/DHX9 complex significantly reduced transcription of ITGB1. Downregulation of SIX1 attenuated nuclear translocation of DHX9 and abrogated the binding of DHX9 to ITGB1 promoter. Collectively, our results unveiled a new signal axis SIX1/ITGB1/FAK in KIRC and identified a novel therapeutic strategy for metastatic KIRC patients.
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Affiliation(s)
- Shiyu Huang
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
- Institute of Urologic Disease, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
- Central Laboratory, Renmin Hospital of Wuhan University, 430060, Wuhan, Hubei, China
| | - Juncheng Hu
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
- Institute of Urologic Disease, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Min Hu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Yanguang Hou
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
- Institute of Urologic Disease, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Banghua Zhang
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
- Institute of Urologic Disease, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
- Hubei Key Laboratory of Digestive System Disease, Wuhan, 430060, China
| | - Jiachen Liu
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
- Institute of Urologic Disease, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China
| | - Xiuheng Liu
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China.
- Institute of Urologic Disease, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China.
| | - Zhiyuan Chen
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China.
- Institute of Urologic Disease, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China.
| | - Lei Wang
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China.
- Institute of Urologic Disease, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China.
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Yao H, Huang C, Zou J, Liang W, Zhao Y, Yang K, Zhong Z, Zhou S, Li J, Li Y, Xu L, Huang K, Lian G. Extracellular vesicle-packaged lncRNA from cancer-associated fibroblasts promotes immune evasion by downregulating HLA-A in pancreatic cancer. J Extracell Vesicles 2024; 13:e12484. [PMID: 39041344 PMCID: PMC11263977 DOI: 10.1002/jev2.12484] [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: 11/21/2023] [Revised: 04/02/2024] [Accepted: 06/24/2024] [Indexed: 07/24/2024] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is characterised by immune evasion that contribute to poor prognosis. Cancer-associated fibroblasts (CAFs) play a pivotal role in orchestrating the PDAC tumour microenvironment. We investigated the role of CAF-derived extracellular vesicle (EV)-packaged long non-coding RNAs (lncRNAs) in immune evasion and explored gene therapy using engineered EVs loading small interfering RNAs (siRNAs) as a potential therapeutic strategy. Our findings highlight the significance of EV-packaged lncRNA RP11-161H23.5 from CAF in promoting PDAC immune evasion by downregulating HLA-A expression, a key component of antigen presentation. Mechanistically, RP11-161H23.5 forms a complex with CNOT4, a subunit of the mRNA deadenylase CCR4-NOT complex, enhancing the degradation of HLA-A mRNA by shortening its poly(A) tail. This immune evasion mechanism compromises the anti-tumour immune response. To combat this, we propose an innovative approach utilising engineered EVs as natural and biocompatible nanocarriers for siRNA-based gene therapy and this strategy holds promise for enhancing the effectiveness of immunotherapy in PDAC. Overall, our study sheds light on the critical role of CAF-derived EV-packaged lncRNA RP11-161H23.5/CNOT4/HLA-A axis in PDAC immune evasion and presents a novel avenue for therapeutic intervention.
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Affiliation(s)
- Hanming Yao
- Department of Gastroenterology, Guangdong Provincial Geriatrics Institute, Guangdong Provincial People's HospitalGuangdong Academy of Medical SciencesSouthern Medical UniversityGuangzhouChina
- Department of GastroenterologySun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationSun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Chengzhi Huang
- Department of Gastrointestinal Surgery, Department of General Surgery, Guangdong Provincial People's HospitalGuangdong Academy of Medical Sciences, Southern Medical UniversityGuangzhouChina
| | - Jinmao Zou
- Department of GastroenterologySun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationSun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Weiling Liang
- Department of GastroenterologySun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Yue Zhao
- Department of GastroenterologySun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationSun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Kege Yang
- Department of GastroenterologySun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationSun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Ziyi Zhong
- Department of GastroenterologySun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationSun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Shurui Zhou
- Department of GastroenterologySun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationSun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Jiajia Li
- Department of NephrologySun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Yaqing Li
- Department of GastroenterologySun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationSun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Lishu Xu
- Department of Gastroenterology, Guangdong Provincial Geriatrics Institute, Guangdong Provincial People's HospitalGuangdong Academy of Medical SciencesSouthern Medical UniversityGuangzhouChina
| | - Kaihong Huang
- Department of GastroenterologySun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationSun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Guoda Lian
- Department of GastroenterologySun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationSun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
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Bian Z, Benjamin MM, Bialousow L, Tian Y, Hobbs GA, Karan D, Choo YM, Hamann MT, Wang X. Targeting sine oculis homeoprotein 1 (SIX1): A review of oncogenic roles and potential natural product therapeutics. Heliyon 2024; 10:e33204. [PMID: 39022099 PMCID: PMC11252760 DOI: 10.1016/j.heliyon.2024.e33204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 06/16/2024] [Accepted: 06/17/2024] [Indexed: 07/20/2024] Open
Abstract
Sine oculis homeoprotein 1 (SIX1), a prominent representative of the homeodomain transcription factors within the SIX family, has attracted significant interest owing to its role in tumorigenesis, cancer progression, and prognostic assessments. Initially recognized for its pivotal role in embryonic development, SIX1 has emerged as a resurgent factor across a diverse set of mammalian cancers. Over the past two decades, numerous investigations have emphasized SIX1's dual significance as a developmental regulator and central player in oncogenic processes. A mounting body of evidence links SIX1 to the initiation of diverse cancers, encompassing enhanced cellular metabolism and advancement. This review provides an overview of the multifaceted roles of SIX1 in both normal development and oncogenic processes, emphasizing its importance as a possible therapeutic target and prognostic marker. Additionally, this review discusses the natural product agents that inhibit various pro-oncogenic mechanisms associated with SIX1.
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Affiliation(s)
- Zhiwei Bian
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Menny M. Benjamin
- Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Lucas Bialousow
- Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Yintai Tian
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - G. Aaron Hobbs
- Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, SC, USA
| | - Dev Karan
- Department of Pathology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Yeun-Mun Choo
- Chemistry Department, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Mark T. Hamann
- Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Xiaojuan Wang
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, Gansu, China
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Wei Y, Liu W, Wang R, Chen Y, Liu J, Guo X, Can C, Yang X, Wang D, Hu X, Ma D. Propionate promotes ferroptosis and apoptosis through mitophagy and ACSL4-mediated ferroptosis elicits anti-leukemia immunity. Free Radic Biol Med 2024; 213:36-51. [PMID: 38215892 DOI: 10.1016/j.freeradbiomed.2024.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 01/04/2024] [Indexed: 01/14/2024]
Abstract
Short-chain fatty acids (SCFAs), particularly propionate and butyrate, have been reported in many cancers. However, the relationship between propionate and acute myeloid leukemia (AML) remains unclear. Additionally, Acyl-CoA synthetase long chain family member 4 (ACSL4) has been reported to regulate immunity in solid tumors, but there are still many gaps to be filled in AML. Here, we discovered the underlying mechanism of propionate and ACSL4-mediated ferroptosis for immunotherapy. Our results showed that the level of propionate in the AML patients' feces was decreased, which was correlated to gut microbiota dysbiosis. Moreover, we demonstrated that propionate suppressed AML progression both in vivo and in vitro. In mechanism, propionate induced AML cells apoptosis and ferroptosis. The imbalance of reactive oxygen species (ROS) and redox homeostasis induced by propionate caused mitochondrial fission and mitophagy, which enhanced ferroptosis and apoptosis. Furthermore, ACSL4-mediated ferroptosis caused by propionate increased the immunogenicity of AML cells, induced the release of damage-associated molecular patterns (DAMPs), and promoted the maturation of dendritic cells (DCs). The increased level of immunogenicity due to ferroptosis enable propionate-based whole-cell vaccines to activate immunity, thus further facilitating effective killing of AML cells. Collectively, our study uncovers a crucial role for propionate suppresses AML progression by inducing ferroptosis and the potential mechanisms of ACSL4-mediated ferroptosis in the regulation of AML immunity.
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Affiliation(s)
- Yihong Wei
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - Wancheng Liu
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - Ruiqing Wang
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - Yuhong Chen
- Nanyang Technological University, Nanyang Avenue, Singapore
| | - Jinting Liu
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - Xiaodong Guo
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - Can Can
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - Xinyu Yang
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - Dongmei Wang
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - Xiang Hu
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - Daoxin Ma
- Department of Hematology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China.
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Zhang Z, Li B, Wang Z, Yang L, Peng J, Wang H, Wang Y, Hong L. Novel LncRNA LINC02936 Suppresses Ferroptosis and Promotes Tumor Progression by Interacting with SIX1/CP Axis in Endometrial Cancer. Int J Biol Sci 2024; 20:1356-1374. [PMID: 38385087 PMCID: PMC10878161 DOI: 10.7150/ijbs.86256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 01/19/2024] [Indexed: 02/23/2024] Open
Abstract
Endometrial cancer (EC) is a prevalent gynecological malignancy, and metabolic disorders are among its most significant risk factors. Abnormal iron metabolism is associated with the progression of cancer malignancy. Nevertheless, the involvement of iron metabolism in the EC remains uncertain. Ceruloplasmin (CP) functions as a multicopper oxidase and ferroxidase, playing a crucial role in maintaining the metabolic balance between copper and iron. Prior research has demonstrated that the dysregulated expression of CP has important clinical implications in EC. However, the specific underlying molecular mechanisms remains uncertain. This research examined the impact of CP on the malignant advancement of EC by suppressing ferroptosis. Next, we explored the possibility that Long non-coding RNA (lncRNA) LINC02936/SIX1/CP axis may be a key pathway for inhibiting ferroptosis and promoting cancer progression in EC. Mechanistically, SIX1 modulates the expression of CP, whereas LINC02936 interacts with SIX1 and recruits SIX1 to the CP promoter, leading to upregulation of CP, inhibition of ferroptosis, and promotion of EC progression. Administration of a small peptide cloud block the LINC02936-SIX1 interaction, thereby inhibits EC progression by promoting ferroptosis. Altogether, this is the first report on the lncRNA regulation of ferroptosis in EC. Our research enhances the knowledge of the lncRNA-mediated regulation of ferroptosis in EC progression and indicates the potential therapeutic significance of the LINC02936/SIX1/CP axis in treating EC.
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Affiliation(s)
| | | | | | | | | | | | | | - Li Hong
- Department of Gynecology and Obstetrics, Renmin Hospital of Wuhan University, Wuhan, Hubei Province People's Republic of China
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Zhu S, Li W, Zhang H, Yan Y, Mei Q, Wu K. Retinal determination gene networks: from biological functions to therapeutic strategies. Biomark Res 2023; 11:18. [PMID: 36750914 PMCID: PMC9906957 DOI: 10.1186/s40364-023-00459-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 01/28/2023] [Indexed: 02/09/2023] Open
Abstract
The retinal determinant gene network (RDGN), originally discovered as a critical determinator in Drosophila eye specification, has become an important regulatory network in tumorigenesis and progression, as well as organogenesis. This network is not only associated with malignant biological behaviors of tumors, such as proliferation, and invasion, but also regulates the development of multiple mammalian organs. Three members of this conservative network have been extensively investigated, including DACH, SIX, and EYA. Dysregulated RDGN signaling is associated with the initiation and progression of tumors. In recent years, it has been found that the members of this network can be used as prognostic markers for cancer patients. Moreover, they are considered to be potential therapeutic targets for cancer. Here, we summarize the research progress of RDGN members from biological functions to signaling transduction, especially emphasizing their effects on tumors. Additionally, we discuss the roles of RDGN members in the development of organs and tissue as well as their correlations with the pathogenesis of chronic kidney disease and coronary heart disease. By summarizing the roles of RDGN members in human diseases, we hope to promote future investigations into RDGN and provide potential therapeutic strategies for patients.
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Affiliation(s)
- Shuangli Zhu
- grid.412793.a0000 0004 1799 5032Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Wanling Li
- grid.412793.a0000 0004 1799 5032Department of Geriatrics, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China ,grid.470966.aCancer Center, Shanxi Bethune Hospital, Shanxi Academy of Medical Science, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, 030032 China
| | - Hao Zhang
- grid.412793.a0000 0004 1799 5032Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Yuheng Yan
- grid.412793.a0000 0004 1799 5032Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Qi Mei
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China. .,Cancer Center, Shanxi Bethune Hospital, Shanxi Academy of Medical Science, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, 030032, China.
| | - Kongming Wu
- Cancer Center, Shanxi Bethune Hospital, Shanxi Academy of Medical Science, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, 030032, China. .,Cancer Center, Tongji hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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Baldari S, Di Modugno F, Nisticò P, Toietta G. Strategies for Efficient Targeting of Tumor Collagen for Cancer Therapy. Cancers (Basel) 2022; 14:cancers14194706. [PMID: 36230627 PMCID: PMC9563908 DOI: 10.3390/cancers14194706] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 09/21/2022] [Accepted: 09/22/2022] [Indexed: 11/25/2022] Open
Abstract
Simple Summary The tumor microenvironment encompasses the cellular and extracellular matrix components that support and shape the three-dimensional framework in which solid tumors develop and grow. The extracellular matrix of the tumor is characterized by increased deposition and aberrant architecture of collagen fibers. Therefore, as a key mechanical component of the tumor microenvironment, collagen plays a critical role in cancer progression, metastasis, and therapeutic response. To boost the efficacy of current anticancer therapies, including immunotherapy, innovative approaches should take into account strategies directed against the dysregulated non-cancer cell stromal components. In the current review, we provide an overview of the principal approaches to target tumor collagen to provide therapeutic benefits. Abstract The tumor stroma, which comprises stromal cells and non-cellular elements, is a critical component of the tumor microenvironment (TME). The dynamic interactions between the tumor cells and the stroma may promote tumor progression and metastasis and dictate resistance to established cancer therapies. Therefore, novel antitumor approaches should combine anticancer and anti-stroma strategies targeting dysregulated tumor extracellular matrix (ECM). ECM remodeling is a hallmark of solid tumors, leading to extensive biochemical and biomechanical changes, affecting cell signaling and tumor tissue three-dimensional architecture. Increased deposition of fibrillar collagen is the most distinctive alteration of the tumor ECM. Consequently, several anticancer therapeutic strategies have been developed to reduce excessive tumor collagen deposition. Herein, we provide an overview of the current advances and challenges of the main approaches aiming at tumor collagen normalization, which include targeted anticancer drug delivery, promotion of degradation, modulation of structure and biosynthesis of collagen, and targeting cancer-associated fibroblasts, which are the major extracellular matrix producers.
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Lu L, Huang J, Mo J, Da X, Li Q, Fan M, Lu H. Exosomal lncRNA TUG1 from cancer-associated fibroblasts promotes liver cancer cell migration, invasion, and glycolysis by regulating the miR-524-5p/SIX1 axis. Cell Mol Biol Lett 2022; 27:17. [PMID: 35193488 PMCID: PMC8903597 DOI: 10.1186/s11658-022-00309-9] [Citation(s) in RCA: 62] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 01/07/2022] [Indexed: 02/06/2023] Open
Abstract
Background Increasing evidence suggests that taurine upregulated gene 1 (TUG1) is crucial for tumor progression; however, its role in hepatocellular carcinoma (HCC) and the underlying mechanisms are not well characterized. Methods The expression levels of TUG1, miR-524-5p, and sine oculis homeobox homolog 1 (SIX1) were determined using quantitative real-time PCR. The regulatory relationships were confirmed by dual-luciferase reporter assay. Cell proliferation and invasion were assessed using Cell Counting Kit 8 and transwell assays. Glucose uptake, cellular levels of lactate, lactate dehydrogenase (LDH), and adenosine triphosphate (ATP) were detected using commercially available kits. Silencing of TUG1 or SIX1 was performed by lentivirus transduction. Protein levels were measured by immunoblotting. Results Cancer-associated fibroblasts (CAFs)-secreted exosomes promoted migration, invasion, and glycolysis in HepG2 cells by releasing TUG1. The promotive effects of CAFs-secreted exosomes were attenuated by silencing of TUG1. TUG1 and SIX1 are targets of miR-524-5p. SIX1 knockdown inhibited the promotive effects of miR-524-5p inhibitor. Silencing of TUG1 suppressed tumor growth and lung metastasis and therefore increased survival of xenograft model mice. We also found that TUG1 and SIX1 were increased in HCC patients with metastasis while miR-524-5p was decreased in HCC patients with metastasis. Conclusions CAFs-derived exosomal TUG1 promoted migration, invasion, and glycolysis in HCC cells via the miR-524-5p/SIX1 axis. These findings may help establish the foundation for the development of therapeutics strategies and clinical management for HCC in future. Supplementary Information The online version contains supplementary material available at 10.1186/s11658-022-00309-9.
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Affiliation(s)
- Le Lu
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157, West 5th Road, Xi'an, 710004, China
| | - Jingjing Huang
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157, West 5th Road, Xi'an, 710004, China
| | - Jiantao Mo
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157, West 5th Road, Xi'an, 710004, China
| | - Xuanbo Da
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157, West 5th Road, Xi'an, 710004, China
| | - Qiaoxin Li
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157, West 5th Road, Xi'an, 710004, China
| | - Meng Fan
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157, West 5th Road, Xi'an, 710004, China
| | - Hongwei Lu
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157, West 5th Road, Xi'an, 710004, China.
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