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Wu J, Zhang L, Li W, Wang L, Jia Q, Shi F, Li K, Liao L, Shi Y, Wu S. The role of TOP2A in immunotherapy and vasculogenic mimicry in non-small cell lung cancer and its potential mechanism. Sci Rep 2023; 13:10906. [PMID: 37407689 DOI: 10.1038/s41598-023-38117-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 07/03/2023] [Indexed: 07/07/2023] Open
Abstract
Type IIA topoisomerase (TOP2A) is significantly associated with malignant tumor development, invasion, treatment and its prognosis, and has been shown to be a therapeutic target against cancer. In contrast, the role of TOP2A in the immunotherapy of non-small cell lung cancer as well as in Vasculogenic mimicry (VM) formation and its potential mechanisms are unclear. The aim of this study was to investigate the role of TOP2A in proliferation, skeleton regulation, motility and VM production in non-small cell lung cancer and its mechanisms by using bioinformatics tools and molecular biology experiments. Subgroup analysis showed that the low-risk group had a better prognosis, while the high-risk group was positively correlated with high tumor mutational load, M1-type macrophage infiltration, immune checkpoint molecule expression, and immunotherapy efficacy. As confirmed by further clinical specimens, the presence of TOP2A and VM was significantly and positively correlated with poor prognosis. Our study established a model based on significant co-expression of TOP2A genes, which significantly correlated with mutational load and immunotherapy outcomes in patients with non-small cell lung cancer. Further mechanistic exploration suggests that TOP2A plays an important role in immunotherapy and VM formation in NSCLC through upregulation of Wnt3a and PD-L1 expression.
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Affiliation(s)
- Jiatao Wu
- Anhui Province Key Laboratory of Clinical and Preclinical Research in Respiratory Disease, Molecular Diagnosis Center, First Affiliated Hospital, Bengbu Medical College, 287 Changhuai Road, Bengbu, 233004, Anhui, China
- Department of Pathology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, People's Republic of China
| | - Lei Zhang
- Department of Oncology Surgery, The Second Affiliated Hospital of Bengbu Medical College, Bengbu, 233080, Anhui, China
| | - Wenjuan Li
- Anhui Province Key Laboratory of Clinical and Preclinical Research in Respiratory Disease, Molecular Diagnosis Center, First Affiliated Hospital, Bengbu Medical College, 287 Changhuai Road, Bengbu, 233004, Anhui, China
- Department of Pathology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, People's Republic of China
| | - Luyao Wang
- Department of Pathology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, People's Republic of China
| | - Qianhao Jia
- Department of Pathology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, People's Republic of China
| | - Fan Shi
- Department of Pathology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, People's Republic of China
| | - Kairui Li
- Department of Pathology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, People's Republic of China
| | - Lingli Liao
- Department of Radiation Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, 233000, Anhui, China
| | - Yuqi Shi
- Department of Pathology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, People's Republic of China
| | - Shiwu Wu
- Department of Pathology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, People's Republic of China.
- Department of Pathology, Bengbu Medical College, Bengbu, 233030, Anhui, China.
- Department of pathology, Anhui No.2 Provincial People's Hospital, Bengbu, China.
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Yuan G, Hu B, Ma J, Zhang C, Xie H, Wei T, Yang Y, Ni B. Histone lysine methyltransferase
SETDB2
suppresses
NRF2
to restrict tumor progression and modulates chemotherapy sensitivity in lung adenocarcinoma. Cancer Med 2022; 12:7258-7272. [PMID: 36504353 PMCID: PMC10067124 DOI: 10.1002/cam4.5451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 11/01/2022] [Accepted: 11/07/2022] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE Aberrant epigenetic remodeling represents a molecular hallmark in lung adenocarcinoma (LUAD). We aim to investigate the biological roles of SETDB2 and its underlying associations with oxidative stress, providing therapeutic targets for individualized treatment of LUAD. METHODS Differential analysis was conducted via Limma package, and Kaplan-Meier analysis was performed with survival package. CCK-8, cell proliferation assay, transwell assay, and in vivo assays were conducted to assess the function of SETDB2. Western blot assay, RT-qPCR, and immunohistochemistry (IHC) were conducted to assess the expression levels of SETDB2/NRF2. Chromatin immunoprecipitation (ChIP) assay and ChIP-qPCR were conducted to assess the epigenetic roles of SETDB2. RESULTS We found that SETDB2 expression is decreased in tumor samples versus normal tissues in TCGA-LUAD cohort, LUAD-EAS cohort, GSE72094 dataset, and independent Soochow-LUAD dataset. Patients with low SETDB2 levels had a worse prognosis relative to those with high SETDB2. SETDB2 inhibition could significantly promote cell growth, migration ability, and stemness maintenance. Gene set enrichment analysis (GSEA) suggested that SETDB2 correlated with oxidative stress crosstalk and regulated NRF2 mRNA levels. ChIP assay suggested that SETDB2 mainly recruited the H3K9me3 enrichment at the NRF2 promoter region to suppress the mRNA levels of NRF2. Downregulated SETDB2 could activate NRF2 transcription and expression, thereby promoting its downstream targets, like NQO1, FTH1, and ME1. Functional experiments demonstrated that low SETDB2 allowed NRF2 to drive malignant processes of LUAD. SETDB2 overexpression attenuated the ability of NRF2 signaling to neutralize cellular reactive oxygen species (ROS) levels, leading to enhanced cell apoptosis. Overexpressed SETDB2 could inhibit tumor progression in vivo and further render LUAD cells sensitive to chemotherapy. CONCLUSIONS In conclusion, these findings uncovered the suppressive role of SETDB2 in LUAD. SETDB2 negatively regulates NRF2 signaling to modulate tumor progression, which creates a therapeutic vulnerability in LUAD.
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Affiliation(s)
- Guangda Yuan
- Department of Thoracic Surgery The First Affiliated Hospital of Soochow University Suzhou China
| | - Bowen Hu
- Department of Thoracic Surgery The First Affiliated Hospital of Soochow University Suzhou China
- Department of Thoracic Surgery The Affiliated Suzhou Hospital of Nanjing Medical University Suzhou China
| | - Jun Ma
- Department of Thoracic Surgery The Affiliated Suzhou Hospital of Nanjing Medical University Suzhou China
| | - Chuanyu Zhang
- Department of Thoracic Surgery The Affiliated Suzhou Hospital of Nanjing Medical University Suzhou China
| | - Hongya Xie
- Department of Thoracic Surgery The Affiliated Suzhou Hospital of Nanjing Medical University Suzhou China
| | - Tengteng Wei
- Department of Thoracic Surgery The Affiliated Suzhou Hospital of Nanjing Medical University Suzhou China
| | - Yong Yang
- Department of Thoracic Surgery The Affiliated Suzhou Hospital of Nanjing Medical University Suzhou China
| | - Bin Ni
- Department of Thoracic Surgery The First Affiliated Hospital of Soochow University Suzhou China
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Saliani M, Mirzaiebadizi A, Mosaddeghzadeh N, Ahmadian MR. RHO GTPase-Related Long Noncoding RNAs in Human Cancers. Cancers (Basel) 2021; 13:5386. [PMID: 34771549 PMCID: PMC8582479 DOI: 10.3390/cancers13215386] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 12/27/2022] Open
Abstract
RHO GTPases are critical signal transducers that regulate cell adhesion, polarity, and migration through multiple signaling pathways. While all these cellular processes are crucial for the maintenance of normal cell homeostasis, disturbances in RHO GTPase-associated signaling pathways contribute to different human diseases, including many malignancies. Several members of the RHO GTPase family are frequently upregulated in human tumors. Abnormal gene regulation confirms the pivotal role of lncRNAs as critical gene regulators, and thus, they could potentially act as oncogenes or tumor suppressors. lncRNAs most likely act as sponges for miRNAs, which are known to be dysregulated in various cancers. In this regard, the significant role of miRNAs targeting RHO GTPases supports the view that the aberrant expression of lncRNAs may reciprocally change the intensity of RHO GTPase-associated signaling pathways. In this review article, we summarize recent advances in lncRNA research, with a specific focus on their sponge effects on RHO GTPase-targeting miRNAs to crucially mediate gene expression in different cancer cell types and tissues. We will focus in particular on five members of the RHO GTPase family, including RHOA, RHOB, RHOC, RAC1, and CDC42, to illustrate the role of lncRNAs in cancer progression. A deeper understanding of the widespread dysregulation of lncRNAs is of fundamental importance for confirmation of their contribution to RHO GTPase-dependent carcinogenesis.
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Affiliation(s)
- Mahsa Saliani
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine University, 40225 Düsseldorf, Germany
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran
| | - Amin Mirzaiebadizi
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine University, 40225 Düsseldorf, Germany
| | - Niloufar Mosaddeghzadeh
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine University, 40225 Düsseldorf, Germany
| | - Mohammad Reza Ahmadian
- Institute of Biochemistry and Molecular Biology II, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine University, 40225 Düsseldorf, Germany
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