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Qiao X, Cheng Z, Xue K, Xiong C, Zheng Z, Jin X, Li J. Tumor-associated macrophage-derived exosomes LINC01592 induce the immune escape of esophageal cancer by decreasing MHC-I surface expression. J Exp Clin Cancer Res 2023; 42:289. [PMID: 37915049 PMCID: PMC10621170 DOI: 10.1186/s13046-023-02871-2] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 10/21/2023] [Indexed: 11/03/2023] Open
Abstract
BACKGROUND TAMs (tumor-associated macrophages) infiltration promotes the progression of esophageal cancer (EC). However, the underlying mechanisms remain unclear. METHODS Abnormal expression of LINC01592 from EC microarrays of the TCGA database was analyzed. LINC01592 expression level was validated in both EC cell lines and tissues. Stable LINC01592 knockdown and overexpression of EC cell lines were established. In vitro and in vivo trials were conducted to test the impact of LINC01592 knockdown and overexpression on EC cells. RNA binding protein immunoprecipitation (RIP), RNA pulldown assays, and Immunofluorescence (IF) were used to verify the combination of E2F6 and LINC01592. The combination of E2F6 and NBR1 was verified through the utilization of ChIP and dual luciferase reporter assays. RESULTS LINC01592 is carried and transferred by exosomes secreted by M2-TAMs to tumor cells. The molecular mechanism underlying the promotion of NBR1 transcription involves the direct binding of LINC01592 to E2F6, which facilitates the nuclear entry of E2F6. The collaborative action of LINC01592 and E2F6 results in improved NBR1 transcription. The elevation of NBR1 binding to the ubiquitinated protein MHC-I via the ubiquitin domain caused a higher degradation of MHC-I in autophagolysosomes and a reduction in MHC-I expression on the exterior of cancerous cell. Consequently, this caused cancerous cells to escape from CD8+ CTL immune attack. The tumor-promoting impacts of LINC01592, as well as the growth of M2-type macrophage-driven tumors, were significantly suppressed by the interruption of E2F6/NBR1/MHC-I signaling through the effect of siRNA or the corresponding antibody blockade. Significantly, the suppression of LINC01592 resulted in an upregulation of MHC-I expression on the tumor cell membrane, thereby enhancing the efficacy of CD8+ T cell reinfusion therapy. CONCLUSIONS The investigation conducted has revealed a significant molecular interaction between TAMs and EC via the LINC01592/E2F6/NBR1/MHC-I axis, which facilitates the progression of malignant tumors. This suggests that a therapeutic intervention targeting this axis may hold promise for the treatment of the disease.
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Affiliation(s)
- Xinwei Qiao
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, Hubei, China
| | - Zaixing Cheng
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, Hubei, China
| | - Kaming Xue
- Department of Traditional Chinese Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, Hubei, China
| | - Cui Xiong
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, Hubei, China
| | - Zhikun Zheng
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, Hubei, China
| | - Xin Jin
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Jinsong Li
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, Hubei, China.
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Li J, Wang K, Yang C, Zhu K, Jiang C, Wang M, Zhou Z, Tang N, Wang Q, Wang S, Shu P, Yuan H, Xiong Z, Li J, Liang T, Rao J, Wang X, Jiang X. Tumor-Associated Macrophage-Derived Exosomal LINC01232 Induces the Immune Escape in Glioma by Decreasing Surface MHC-I Expression. Adv Sci (Weinh) 2023; 10:e2207067. [PMID: 37097629 DOI: 10.1002/advs.202207067] [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] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 03/12/2023] [Indexed: 06/15/2023]
Abstract
Tumor-associated macrophage (TAM) infiltration facilitates glioma malignancy, but the underlying mechanisms remain unclear. Herein, it is reported that TAMs secrete exosomal LINC01232 to induce tumor immune escape. Mechanistically, LINC01232 is found to directly bind E2F2 and promote E2F2 entry into the nucleus; the two synergistically promots the transcription of NBR1. The increase in binding between NBR1 binding and the ubiquitinating MHC-I protein through the ubiquitin domain causes an increase in the degradation of MHC-I in autophagolysosomes and a decrease in the expression of MHC-I on the surface of tumor cells, which in turn led to tumor cell escape from CD8+ CTL immune attack. Disruption of E2F2/NBR1/MHC-I signaling with shRNAs or blockade with the corresponding antibodies largely abolishes the tumor-supportive effects of LINC01232 and inhibits tumor growth driven by M2-type macrophages. Importantly, knockdown of LINC01232 enhances the expression of MHC-I on the surface of tumor cells and improves the response to reinfusion with CD8+ T cells. This study reveals the existence of critical molecular crosstalk between TAMs and glioma mediates through the LINC01232/E2F2/NBR1/MHC-I axis to support malignant tumor growth, indicating that targeting this axis may have therapeutic potential.
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Affiliation(s)
- Junjun Li
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, 430022, China
| | - Keshan Wang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, 430022, China
| | - Chao Yang
- Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences Tianjin, Tianjin, 300308, China
| | - Kai Zhu
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, 430022, China
| | - Cheng Jiang
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, 430022, China
| | - Minjie Wang
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, 430022, China
| | - Zijie Zhou
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, 430022, China
| | - Nan Tang
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, 430022, China
| | - Qiangping Wang
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, 430022, China
| | - Siqi Wang
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, 430022, China
| | - Pengwei Shu
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, 430022, China
| | - Hongliang Yuan
- Department of Ultrasound, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, 430022, China
| | - Zhiyong Xiong
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, 430022, China
| | - Jinsong Li
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, 430022, China
| | - Tao Liang
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, 430022, China
| | - Jin Rao
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, 430022, China
| | - Xuan Wang
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, 430022, China
| | - Xiaobing Jiang
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei, 430022, China
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Velasco VY, Dudrey EF, Manglik N, Piskurich JF, Baatar D. Immune Response in Allergic Contact Dermatitis: An Integrated Learning Module. MedEdPORTAL 2018; 14:10680. [PMID: 30800880 PMCID: PMC6342427 DOI: 10.15766/mep_2374-8265.10680] [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] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 01/20/2018] [Indexed: 06/09/2023]
Abstract
Introduction Medical students are introduced to skin rashes during their preclinical years and often express difficulty in differentiating the underlying mechanisms. The preclinical lessons regarding immunologically mediated skin rashes are largely forgotten by the time the students begin diagnosing and treating skin rashes during clinical rotations. This module aims to enhance student understanding of immunologic concepts by integrating material across disciplines, contextualizing within a clinical scenario, and providing opportunity for self-testing. Methods A diagram illustrating immune responses in allergic contact dermatitis was used in the Texas Tech University Paul L. Foster School of Medicine preclinical curriculum. This diagram was updated as an audiovisual learning module that traced the immune mechanisms and pathogenesis of contact dermatitis from allergen exposure to skin-rash development. A self-assessment quiz and a clinical vignette with questions were included in the module. Student usage was monitored, and an in-class survey evaluating student perception was administered. Results Sixty-four (58%) first-year medical students used this module. Twenty-eight students completed the in-class survey. Over 95% of respondents felt that the module helped them learn the new material, identify areas of weakness, and both understand the underlying pathology and big picture for this immune response. Discussion Student survey results indicate the module is clinically relevant and enhances learning. The module may be used as a component of self-directed learning in any immunology curriculum or may be used in any basic immunology course to exemplify the role of the immune system in disease.
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Affiliation(s)
- Veronica Y. Velasco
- Assistant Professor, Department of Medical Education, TCU and UNTHSC School of Medicine
| | - Ellen F. Dudrey
- Assistant Professor, Department of Medical Education, Texas Tech University Health Sciences Center Paul L. Foster School of Medicine
| | - Niti Manglik
- Assistant Professor, Department of Medical Education, Texas Tech University Health Sciences Center Paul L. Foster School of Medicine
| | - Janet F. Piskurich
- Professor, Department of Medical Education, Texas Tech University Health Sciences Center Paul L. Foster School of Medicine
| | - Dolgor Baatar
- Assistant Professor, Department of Medical Education, Texas Tech University Health Sciences Center Paul L. Foster School of Medicine
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