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Wu G, Dong Z, Dong Y, Chen Y, Zhu H, Ding D, Cui Y, Wang Y, Xu Y, Chen H. LncRNA CTBP1-AS inhibits TP63-mediated activation of S100A14 during prostate cancer progression. Cancer Sci 2024; 115:1492-1504. [PMID: 38476086 PMCID: PMC11093200 DOI: 10.1111/cas.16138] [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: 09/17/2023] [Revised: 02/10/2024] [Accepted: 02/20/2024] [Indexed: 03/14/2024] Open
Abstract
Long noncoding RNAs (lncRNAs) have emerged as important molecules and potential new targets for human cancers. This study investigates the function of lncRNA CTBP1 antisense RNA (CTBP1-AS) in prostate cancer (PCa) and explores the entailed molecular mechanism. Aberrantly expressed genes potentially correlated with PCa progression were probed using integrated bioinformatics analyses. A cohort of 68 patients with PCa was included, and their tumor and para-cancerous tissues were collected. CTBP1-AS was highly expressed in PCa tissues and cells and associated with poor patient prognosis. By contrast, tumor protein p63 (TP63) and S100 calcium binding protein A14 (S100A14) were poorly expressed in the PCa tissues and cells. CTBP1-AS did not affect TP63 expression; however it blocked the TP63-mediated transcriptional activation of S100A14, thereby reducing its expression. CTBP1-AS silencing suppressed proliferation, apoptosis resistance, migration, invasion, and tumorigenicity of PCa cell lines, while its overexpression led to inverse results. The malignant phenotype of cells was further weakened by TP63 overexpression but restored following artificial S100A14 silencing. In conclusion, this study demonstrates that CTBP1-AS plays an oncogenic role in PCa by blocking TP63-mediated transcriptional activation of S100A14. This may provide insight into the management of PCa.
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Affiliation(s)
- Guangzheng Wu
- Department of UrologyHarbin Medical University Cancer HospitalHarbinHeilongjiangChina
| | - Zhenkun Dong
- Department of UrologyHarbin Medical University Cancer HospitalHarbinHeilongjiangChina
| | - Yuhang Dong
- Department of UrologyHarbin Medical University Cancer HospitalHarbinHeilongjiangChina
| | - Yinmei Chen
- Department of UrologyHarbin Medical University Cancer HospitalHarbinHeilongjiangChina
| | - Huan Zhu
- Department of UrologyHarbin Medical University Cancer HospitalHarbinHeilongjiangChina
| | - Dexin Ding
- Department of UrologyHarbin Medical University Cancer HospitalHarbinHeilongjiangChina
| | - Yan Cui
- Department of UrologyHarbin Medical University Cancer HospitalHarbinHeilongjiangChina
| | - Yiwen Wang
- Department of UrologyHarbin Medical University Cancer HospitalHarbinHeilongjiangChina
| | - Yangyang Xu
- Department of UrologyHarbin Medical University Cancer HospitalHarbinHeilongjiangChina
| | - Hui Chen
- Department of UrologyHarbin Medical University Cancer HospitalHarbinHeilongjiangChina
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Liu H, He R, Yang X, Huang B, Liu H. Mechanism of TCF21 Downregulation Leading to Immunosuppression of Tumor-Associated Macrophages in Non-Small Cell Lung Cancer. Pharmaceutics 2023; 15:2295. [PMID: 37765264 PMCID: PMC10536982 DOI: 10.3390/pharmaceutics15092295] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/22/2023] [Accepted: 08/31/2023] [Indexed: 09/29/2023] Open
Abstract
Lung cancer, as one of the high-mortality cancers, seriously affects the normal life of people. Non-small cell lung cancer (NSCLC) accounts for a high proportion of the overall incidence of lung cancer, and identifying therapeutic targets of NSCLC is of vital significance. This study attempted to elucidate the regulatory mechanism of transcription factor 21 (TCF21) on the immunosuppressive effect of tumor-associated macrophages (TAM) in NSCLC. The experimental results revealed that the expression of TCF21 was decreased in lung cancer cells and TAM. Macrophage polarization affected T cell viability and tumor-killing greatly, and M2-type polarization reduced the viability and tumor-killing of CD8+T cells. Meanwhile, overexpression of TCF21 promoted the polarization of TAM to M1 macrophages and the enhancement of macrophages to the viability of T cells. Furthermore, there appears to be a targeting relationship between TCF21 and Notch, suggesting that TCF21 exerts its influence via the Notch signaling pathway. This study demonstrated the polarization regulation of TAM to regulate the immunosuppressive effect, which provides novel targets for the treatment of lung cancer.
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Affiliation(s)
- Hong Liu
- Department of Thyroid Oncology, Chongqing University Cancer Hospital, Chongqing 400030, China;
| | - Run He
- School of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, China;
| | - Xuliang Yang
- Department of Thoracic Surgery, Chongqing Hospital of Traditional Chinese Medicine, Chongqing 400011, China; (X.Y.); (B.H.)
| | - Bo Huang
- Department of Thoracic Surgery, Chongqing Hospital of Traditional Chinese Medicine, Chongqing 400011, China; (X.Y.); (B.H.)
| | - Hongxiang Liu
- Department of Thoracic Surgery, Chongqing Hospital of Traditional Chinese Medicine, Chongqing 400011, China; (X.Y.); (B.H.)
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Zhao Z, Jiang N, Zhang Y, Bai Y, Liu T, Li T, Guo H, Yang R. Analysis and identification of the necroptosis landscape on therapy and prognosis in bladder cancer. Front Genet 2022; 13:919829. [PMID: 36246597 PMCID: PMC9557096 DOI: 10.3389/fgene.2022.919829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 09/06/2022] [Indexed: 11/13/2022] Open
Abstract
Bladder cancer (BLCA) is one of the most common malignant tumors of the urinary system, but the current therapeutic strategy based on chemotherapy and immune checkpoint inhibitor (ICI) therapy cannot meet the treatment needs, mainly owing to the endogenous or acquired apoptotic resistance of cancer cells. Targeting necroptosis provides a novel strategy for chemotherapy and targeted drugs and improves the efficacy of ICIs because of strong immunogenicity of necroptosis. Therefore, we systemically analyzed the necroptosis landscape on therapy and prognosis in BLCA. We first divided BLCA patients from The Cancer Genome Atlas (TCGA) database into two necroptosis-related clusters (C1 and C2). Necroptosis C2 showed a significantly better prognosis than C1, and the differential genes of C2 and C1 were mainly related to the immune response according to GO and KEGG analyses. Next, we constructed a novel necroptosis-related gene (NRG) signature consisting of SIRT6, FASN, GNLY, FNDC4, SRC, ANXA1, AIM2, and IKBKB to predict the survival of TCGA-BLCA cohort, and the accuracy of the NRG score was also verified by external datasets. In addition, a nomogram combining NRG score and several clinicopathological features was established to more accurately and conveniently predict the BLCA patient’s survival. We also found that the NRG score was significantly related to the infiltration levels of CD8 T cells, NK cells, and iDC cells, the gene expression of CTLA4, PD-1, TIGIT, and LAG3 of TME, and the sensitivity to chemotherapy and targeted agents in BLCA patients. In conclusion, the NRG score has an excellent performance in evaluating the prognosis, clinicopathologic features, tumor microenvironment (TME), and therapeutic sensitivity of BLCA patients, which could be utilized as a guide for chemotherapy, ICI therapy, and combination therapy.
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Affiliation(s)
- Zihan Zhao
- Department of Urology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Institute of Urology, Nanjing University, Nanjing, China
| | - Ning Jiang
- Department of Urology, Nanjing Drum Tower Hospital Clinical College of Jiangsu University, Nanjing, China
| | - Yulin Zhang
- Department of Urology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Institute of Urology, Nanjing University, Nanjing, China
| | - Yuhao Bai
- Department of Urology, Nanjing Drum Tower Hospital Clinical College of Jiangsu University, Nanjing, China
| | - Tianyao Liu
- Department of Urology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Institute of Urology, Nanjing University, Nanjing, China
| | - Tianhang Li
- Department of Urology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Institute of Urology, Nanjing University, Nanjing, China
| | - Hongqian Guo
- Department of Urology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Institute of Urology, Nanjing University, Nanjing, China
- *Correspondence: Hongqian Guo, ; Rong Yang,
| | - Rong Yang
- Department of Urology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Institute of Urology, Nanjing University, Nanjing, China
- *Correspondence: Hongqian Guo, ; Rong Yang,
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