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Zhang C, Li W, Liu L, Li M, Sun H, Zhang C, Zhong L, Huang J, Li T. DDB2 promotes melanoma cell growth by transcriptionally regulating the expression of KMT2A and predicts a poor prognosis. FASEB J 2024; 38:e23735. [PMID: 38860936 DOI: 10.1096/fj.202302040r] [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: 10/08/2023] [Revised: 05/02/2024] [Accepted: 05/28/2024] [Indexed: 06/12/2024]
Abstract
Identification of potential key targets of melanoma, a fatal skin malignancy, is critical to the development of new cancer therapies. Lysine methyltransferase 2A (KMT2A) promotes melanoma growth by activating the human telomerase reverse transcriptase (hTERT) signaling pathway; however, the exact mechanism remains elusive. This study aimed to reveal new molecular targets that regulate KMT2A expression and melanoma growth. Using biotin-streptavidin-agarose pull-down and proteomics, we identified Damage-specific DNA-binding protein 2 (DDB2) as a KMT2A promoter-binding protein in melanoma cells and validated its role as a regulator of KMT2A/hTERT signaling. DDB2 knockdown inhibited the expression of KMT2A and hTERT and inhibited the growth of melanoma cells in vitro. Conversely, overexpression of DDB2 activated the expression of KMT2A and promoted the growth of melanoma cells. Additionally, we demonstrated that DDB2 expression was higher in tumor tissues of patients with melanoma than in corresponding normal tissues and was positively correlated with KMT2A expression. Kaplan-Meier analysis showed a poor prognosis in patients with high levels of DDB2 and KMT2A. Overall, our data suggest that DDB2 promotes melanoma cell growth through the transcriptional regulation of KMT2A expression and predicts poor prognosis. Therefore, targeting DDB2 may regulate the effects of KMT2A on melanoma growth and progression, providing a new potential therapeutic strategy for melanoma.
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Affiliation(s)
- Changlin Zhang
- Department of Gynecology, Pelvic Floor Disorders Center, Scientific Research Center, Department of Dermatovenereology, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Weizhao Li
- Department of Gynecology, Pelvic Floor Disorders Center, Scientific Research Center, Department of Dermatovenereology, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China
| | - Lixiang Liu
- Department of Gynecology, Pelvic Floor Disorders Center, Scientific Research Center, Department of Dermatovenereology, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China
| | - Miao Li
- Department of Gynecology, Pelvic Floor Disorders Center, Scientific Research Center, Department of Dermatovenereology, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China
| | - Haohui Sun
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Chi Zhang
- Department of Gynecology, Pelvic Floor Disorders Center, Scientific Research Center, Department of Dermatovenereology, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China
| | - Li Zhong
- Department of Gynecology, Pelvic Floor Disorders Center, Scientific Research Center, Department of Dermatovenereology, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China
| | - Jiajia Huang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Tian Li
- Department of Gynecology, Pelvic Floor Disorders Center, Scientific Research Center, Department of Dermatovenereology, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China
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Yuemaierabola A, Guo J, Sun L, Yeerkenbieke B, Liu F, Ye D, Zhai X, Guo W, Cao Y. Comprehensive analysis of CPSF4-related alternative splice genes in hepatocellular carcinoma. J Cancer Res Clin Oncol 2023; 149:13955-13971. [PMID: 37542549 PMCID: PMC10590311 DOI: 10.1007/s00432-023-05178-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 07/11/2023] [Indexed: 08/07/2023]
Abstract
BACKGROUND An important stage in controlling gene expression is RNA alternative splicing (AS), and aberrant AS can trigger the development and spread of malignancies, including hepatocellular carcinoma (HCC). A crucial component of AS is cleavage and polyadenylation-specific factor 4 (CPSF4), a component of the CPSF complex, but it is unclear how CPSF4-related AS molecules describe immune cell infiltration in the total tumor microenvironment (TME). METHODS Using RNA-sequencing data and clinical data from TCGA-LIHC from the Cancer Genome Atlas (TCGA) database, the AS genes with differential expression were found. The univariate Cox analysis, KM analysis, and Spearman analysis were used to identify the AS genes related to prognosis. Screening of key AS genes that are highly correlated with CPSF4. Key genes were screened using Cox regression analysis and stepwise regression analysis, and prognosis prediction models and the topography of TME cell infiltration were thoroughly analyzed. RESULTS A model consisting of seven AS genes (STMN1, CLSPN, MDK, RNFT2, PRR11, RNF157, GHR) was constructed that was aimed to predict prognostic condition. The outcomes of the HCC samples in the high-risk group were considerably worse than those in the lower risk group (p < 0.0001), and different risk patient groups were formed. According to the calibration curves and the area under the ROC curve (AUC) values for survival at 1, 2, and 3 years, the clinical nomogram performs well in predicting survival in HCC patients. These values were 0.76, 0.70, and 0.69, respectively. Moreover, prognostic signature was markedly related to immune infiltration and immune checkpoint genes expression. CONCLUSION By shedding light on the function of CPSF4 and the seven AS genes in the formation and progression of HCC, this research analysis contributes to the development of more useful prognostic, diagnostic, and possibly therapeutic biomarkers.
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Affiliation(s)
- Anwaier Yuemaierabola
- Department of Cancer Research Institute, Affiliated Cancer Hospital of Xinjiang Medical University, Urumqi, 830011, China
- Key Laboratory of Oncology of Xinjiang Uyghur Autonomous Region, Urumqi, 830011, China
| | - Jun Guo
- Department of Cancer Research Institute, Affiliated Cancer Hospital of Xinjiang Medical University, Urumqi, 830011, China
- Key Laboratory of Oncology of Xinjiang Uyghur Autonomous Region, Urumqi, 830011, China
| | - Lili Sun
- Department of Cancer Research Institute, Affiliated Cancer Hospital of Xinjiang Medical University, Urumqi, 830011, China
- Key Laboratory of Oncology of Xinjiang Uyghur Autonomous Region, Urumqi, 830011, China
| | - Buerlan Yeerkenbieke
- Department of Cancer Research Institute, Affiliated Cancer Hospital of Xinjiang Medical University, Urumqi, 830011, China
- Key Laboratory of Oncology of Xinjiang Uyghur Autonomous Region, Urumqi, 830011, China
| | - Fuzhong Liu
- Department of Cancer Research Institute, Affiliated Cancer Hospital of Xinjiang Medical University, Urumqi, 830011, China
- Key Laboratory of Oncology of Xinjiang Uyghur Autonomous Region, Urumqi, 830011, China
| | - Dilinaer Ye
- Department of Cancer Research Institute, Affiliated Cancer Hospital of Xinjiang Medical University, Urumqi, 830011, China
- Key Laboratory of Oncology of Xinjiang Uyghur Autonomous Region, Urumqi, 830011, China
| | - Xiaoyi Zhai
- Department of Cancer Research Institute, Affiliated Cancer Hospital of Xinjiang Medical University, Urumqi, 830011, China
- Key Laboratory of Oncology of Xinjiang Uyghur Autonomous Region, Urumqi, 830011, China
| | - Wenjia Guo
- Department of Cancer Research Institute, Affiliated Cancer Hospital of Xinjiang Medical University, Urumqi, 830011, China.
- Key Laboratory of Oncology of Xinjiang Uyghur Autonomous Region, Urumqi, 830011, China.
| | - Yan Cao
- Cancer Hospital of Xinjiang Uygur Autonomous Region (Affiliated Cancer Hospital of Xinjiang Medical University), Urumqi, 830011, China.
- Nursing School of Xinjiang Medical University, Urumqi, 830011, China.
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Choudhry M, Gamallat Y, Ghosh S, Bismar TA. Cleavage and Polyadenylation-Specific Factor 4 (CPSF4) Expression Is Associated with Enhanced Prostate Cancer Cell Migration and Cell Cycle Dysregulation, In Vitro. Int J Mol Sci 2023; 24:12961. [PMID: 37629142 PMCID: PMC10455462 DOI: 10.3390/ijms241612961] [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: 07/10/2023] [Revised: 08/08/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023] Open
Abstract
Potential oncogene cleavage and polyadenylation specific factor 4 (CPSF4) has been linked to several cancer types. However, little research has been conducted on its function in prostate cancer (PCa). In benign, incidental, advanced, and castrate resistant PCa (CRPCa) patient samples, protein expression of CPSF4 was examined on tissue microarray (TMAs) of 353 PCa patients using immunohistochemistry. Using the 'The Cancer Genome Atlas' Prostate Adenocarcinoma (TCGA PRAD) database, significant correlations were found between high CPSF4 expression and high-risk genomic abnormalities such as ERG-fusion, ETV1-fusion, and SPOP mutations. Gene Set Enrichment Analysis (GSEA) of CPSF4 revealed evidence for the increase in biological processes such as cellular proliferation and metastasis. We further examined the function of CPSF4 in vitro and confirmed CPSF4 clinical outcomes and its underlying mechanism. Our findings showed a substantial correlation between Gleason groups and CPSF4 protein expression. In vitro, CPSF4 knockdown reduced cell invasion and migration while also causing G1 and G2 arrest in PC3 cell lines. Our findings demonstrate that CPSF4 may be used as a possible biomarker in PCa and support its oncogenic function in cellular proliferation and metastasis.
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Affiliation(s)
- Muhammad Choudhry
- Department of Pathology and Laboratory Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; (M.C.); (Y.G.)
- Department of Oncology, Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Yaser Gamallat
- Department of Pathology and Laboratory Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; (M.C.); (Y.G.)
- Department of Oncology, Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Sunita Ghosh
- Department of Medical Oncology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G 2R7, Canada;
- Department of Mathematical and Statistical Sciences, University of Alberta, Edmonton, AB T6G 2R7, Canada
| | - Tarek A. Bismar
- Department of Pathology and Laboratory Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; (M.C.); (Y.G.)
- Department of Oncology, Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
- Tom Baker Cancer Center, Arnie Charbonneau Cancer Institute, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
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Astragalus Polysaccharides Alleviate Lung Adenocarcinoma Bone Metastases by Inhibiting the CaSR/PTHrP Signaling Pathway. J Food Biochem 2023. [DOI: 10.1155/2023/8936119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Bone metastasis is one of the common complications of lung cancer and can lead to bone-related adverse events, such as pathological fractures, spinal cord defects, and nerve compression syndrome. As an effective medicinal component of Astragalus membranaceus, Astragalus polysaccharide (APS) has antitumor activity and alleviates osteoporosis to a certain extent. In this study, we explored the possible role and mechanism underlying APS inhibition of lung adenocarcinoma bone metastases by constructing a mouse model of lung adenocarcinoma bone metastases. First, we constructed osteoclast (OC) and osteoblast (OB) culture systems in vitro to confirm that APS affected the differentiation and function of OCs and OBs. Then, using the mouse bone metastasis model, microCT, and bone histopathology, we confirmed that APS inhibited osteolytic metastasis and tumor cell proliferation in mice, and the effect was mainly realized by inhibiting the CaSR/PTHrP signal pathway. The results showed that APS had a protective effect on lung adenocarcinoma bone metastases.
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Cao Y, Huang C, Zhao X, Yu J. Regulation of SUMOylation on RNA metabolism in cancers. Front Mol Biosci 2023; 10:1137215. [PMID: 36911524 PMCID: PMC9998694 DOI: 10.3389/fmolb.2023.1137215] [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: 01/04/2023] [Accepted: 02/15/2023] [Indexed: 03/14/2023] Open
Abstract
Post-translational modifications of proteins play very important roles in regulating RNA metabolism and affect many biological pathways. Here we mainly summarize the crucial functions of small ubiquitin-like modifier (SUMO) modification in RNA metabolism including transcription, splicing, tailing, stability and modification, as well as its impact on the biogenesis and function of microRNA (miRNA) in particular. This review also highlights the current knowledge about SUMOylation regulation in RNA metabolism involved in many cellular processes such as cell proliferation and apoptosis, which is closely related to tumorigenesis and cancer progression.
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Affiliation(s)
- Yingting Cao
- Department of Biochemistry and Molecular Cell Biology and Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Caihu Huang
- Department of Biochemistry and Molecular Cell Biology and Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xian Zhao
- Department of Biochemistry and Molecular Cell Biology and Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jianxiu Yu
- Department of Biochemistry and Molecular Cell Biology and Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Song Y, Sun K, Gong L, Shi L, Qin T, Wang S, Deng W, Chen W, Zheng F, Li G. CPSF4 promotes tumor-initiating phenotype by enhancing VEGF/NRP2/TAZ signaling in lung cancer. MEDICAL ONCOLOGY (NORTHWOOD, LONDON, ENGLAND) 2022; 40:62. [PMID: 36567417 DOI: 10.1007/s12032-022-01919-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 11/29/2022] [Indexed: 12/27/2022]
Abstract
Lung cancer is the leading cause of malignant tumor-related deaths worldwide. The presence of tumor-initiating cells in lung cancer leads to tumor recurrence, metastasis, and resistance to conventional treatment. Cleavage and polyadenylation specificity factor 4 (CPSF4) activation in tumor cells contributes to the poor prognosis of lung cancer. However, the precise biological functions and molecular mechanisms of CPSF4 in the regulation of tumor-initiating cells remain unclear. We demonstrated that CPSF4 promotes tumor-initiating phenotype and confers chemoresistance to paclitaxel both in vitro and in vivo. Mechanistically, we showed that CPSF4 binds to the promoters of vascular endothelial growth factor (VEGF) and neuropilin-2 (NRP2) and activated their transcription. In addition, we showed that CPSF4/VEGF/NRP2-mediated tumor-initiating phenotype and chemoresistance through TAZ induction. Furthermore, analysis of clinical data revealed that lung cancer patients with high CPSF4 expression exhibit high expression levels of VEGF, NRP2, and TAZ and that expression of these proteins are positively correlated with poor prognosis. Importantly, selective inhibition of VEGF, NRP2, or TAZ markedly suppressed CPSF4-mediated tumor-initiating phenotype and chemoresistance. Our findings reveal the mechanism of CPSF4 modulating tumor-initiating phenotype and chemoresistance in lung cancer and indicate that the CPSF4-VEGF-NRP2-TAZ signaling pathway may be a prognosis marker and therapeutic target in lung cancer.
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Affiliation(s)
- YingQiu Song
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kai Sun
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - LiLan Gong
- Department of Ultrasound, Wuhan No.1 Hospital, Wuhan, China
| | - LinLi Shi
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Qin
- Department of Medical Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - ShuSen Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - WuGuo Deng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - WangBing Chen
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - FeiMeng Zheng
- Department of Medical Oncology, The Eastern Hospital, The First Affiliated Hospital, Sun Yat-Sen University, No.58, Zhong Shan Er Lu, Guangzhou, 510080, China.
| | - GuiLing Li
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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An W, Yu F. Silencing of CPSF7 inhibits the proliferation, migration, and invasion of lung adenocarcinoma cells by blocking the AKT/mTOR signaling pathway. Open Med (Wars) 2022; 17:1655-1663. [PMID: 36349192 PMCID: PMC9587529 DOI: 10.1515/med-2022-0570] [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: 03/15/2022] [Revised: 08/26/2022] [Accepted: 08/28/2022] [Indexed: 11/25/2022] Open
Abstract
Cleavage and polyadenylation specific factor 7 (CPSF7) is an important participator in the cleavage and polyadenylation of pre-mRNAs. This study aims to uncover the function and underlying mechanism of CPSF7 in lung adenocarcinoma (LUAD). CPSF7 expression in LUAD cells was measured using real time-quantitative polymerase chain reaction and Western blotting. Our results showed that CPSF7 expression was upregulated in LUAD cell lines (A549, H1299, and HCC827). To explore the function of CPSF7 on LUAD, CPSF7 was silenced by the si-CPSF7 transfection and overexpressed by the oe-CPSF7 transfection in A549 cells. Cell proliferation was measured using cell counting kit-8 and colony formation assays. Cell migration and invasion were measured by wound healing and Transwell assays, respectively. Our data revealed that CPSF7 silencing inhibited the viability, colony formation, migration, and invasion of LUAD cells. On the contrary, CPSF7 overexpression enhanced the malignant characteristics of LUAD cells. Additionally, expression of AKT/mTOR pathway-related proteins was detected using Western blotting. CPSF7 silencing blocked the AKT/mTOR signaling pathway. The intervention of SC79 (an activator of the AKT/mTOR pathway) weakened the antitumor effects of CPSF7 silencing in LUAD cells. Silencing of CPSF7 inhibits the malignant characteristics of LUAD cells by blocking the AKT/mTOR signaling pathway.
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Affiliation(s)
- Weishao An
- Department of Respiratory, Xiaoshan First People’s Hospital, Hangzhou, 311200, China
| | - Fang Yu
- Department of Respiratory, Xiaoshan First People’s Hospital, No. 199 Shixin South Road, Hangzhou, 311200, China
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Feng M, Swevers L, Sun J. Hemocyte Clusters Defined by scRNA-Seq in Bombyx mori: In Silico Analysis of Predicted Marker Genes and Implications for Potential Functional Roles. Front Immunol 2022; 13:852702. [PMID: 35281044 PMCID: PMC8914287 DOI: 10.3389/fimmu.2022.852702] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 02/07/2022] [Indexed: 12/16/2022] Open
Abstract
Within the hemolymph, insect hemocytes constitute a heterogeneous population of macrophage-like cells that play important roles in innate immunity, homeostasis and development. Classification of hemocytes in different subtypes by size, morphology and biochemical or immunological markers has been difficult and only in Drosophila extensive genetic analysis allowed the construction of a coherent picture of hemocyte differentiation from pro-hemocytes to granulocytes, crystal cells and plasmatocytes. However, the advent of high-throughput single cell technologies, such as single cell RNA sequencing (scRNA-seq), is bound to have a high impact on the study of hemocytes subtypes and their phenotypes in other insects for which a sophisticated genetic toolbox is not available. Instead of averaging gene expression across all cells as occurs in bulk-RNA-seq, scRNA-seq allows high-throughput and specific visualization of the differentiation status of individual cells. With scRNA-seq, interesting cell types can be identified in heterogeneous populations and direct analysis of rare cell types is possible. Next to its ability to profile the transcriptomes of individual cells in tissue samples, scRNA-seq can be used to propose marker genes that are characteristic of different hemocyte subtypes and predict their functions. In this perspective, the identities of the different marker genes that were identified by scRNA-seq analysis to define 13 distinct cell clusters of hemocytes in larvae of the silkworm, Bombyx mori, are discussed in detail. The analysis confirms the broad division of hemocytes in granulocytes, plasmatocytes, oenocytoids and perhaps spherulocytes but also reveals considerable complexity at the molecular level and highly specialized functions. In addition, predicted hemocyte marker genes in Bombyx generally show only limited convergence with the genes that are considered characteristic for hemocyte subtypes in Drosophila.
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Affiliation(s)
- Min Feng
- Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Luc Swevers
- Insect Molecular Genetics and Biotechnology, Institute of Biosciences & Applications, National Centre for Scientific Research "Demokritos", Aghia Paraskevi, Athens, Greece
| | - Jingchen Sun
- Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, China
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Chai X, Yinwang E, Wang Z, Wang Z, Xue Y, Li B, Zhou H, Zhang W, Wang S, Zhang Y, Li H, Mou H, Sun L, Qu H, Wang F, Zhang Z, Chen T, Ye Z. Predictive and Prognostic Biomarkers for Lung Cancer Bone Metastasis and Their Therapeutic Value. Front Oncol 2021; 11:692788. [PMID: 34722241 PMCID: PMC8552022 DOI: 10.3389/fonc.2021.692788] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 08/30/2021] [Indexed: 12/25/2022] Open
Abstract
Lung cancer is the leading cause of cancer-related death worldwide. Bone metastasis, which usually accompanies severe skeletal-related events, is the most common site for tumor distant dissemination and detected in more than one-third of patients with advanced lung cancer. Biopsy and imaging play critical roles in the diagnosis of bone metastasis; however, these approaches are characterized by evident limitations. Recently, studies regarding potential biomarkers in the serum, urine, and tumor tissue, were performed to predict the bone metastases and prognosis in patients with lung cancer. In this review, we summarize the findings of recent clinical research studies on biomarkers detected in samples obtained from patients with lung cancer bone metastasis. These markers include the following: (1) bone resorption-associated markers, such as N-terminal telopeptide (NTx)/C-terminal telopeptide (CTx), C-terminal telopeptide of type I collagen (CTx-I), tartrate-resistant acid phosphatase isoform 5b (TRACP-5b), pyridinoline (PYD), and parathyroid hormone related peptide (PTHrP); (2) bone formation-associated markers, including total serum alkaline phosphatase (ALP)/bone specific alkaline phosphatase(BAP), osteopontin (OP), osteocalcin (OS), amino-terminal extension propeptide of type I procollagen/carboxy-terminal extension propeptide of type I procollagen (PICP/PINP); (3) signaling markers, including epidermal growth factor receptor/Kirsten rat sarcoma/anaplastic lymphoma kinase (EGFR/KRAS/ALK), receptor activator of nuclear factor κB ligand/receptor activator of nuclear factor κB/osteoprotegerin (RANKL/RANK/OPG), C-X-C motif chemokine ligand 12/C-X-C motif chemokine receptor 4 (CXCL12/CXCR4), complement component 5a receptor (C5AR); and (4) other potential markers, such as calcium sensing receptor (CASR), bone sialoprotein (BSP), bone morphogenetic protein 2 (BMP2), cytokeratin 19 fragment/carcinoembryonic antigen (CYFRA/CEA), tissue factor, cell-free DNA, long non-coding RNA, and microRNA. The prognostic value of these markers is also investigated. Furthermore, we listed some clinical trials targeting hotspot biomarkers in advanced lung cancer referring for their therapeutic effects.
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Affiliation(s)
- Xupeng Chai
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Eloy Yinwang
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Zenan Wang
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Zhan Wang
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Yucheng Xue
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Binghao Li
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Hao Zhou
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Wenkan Zhang
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Shengdong Wang
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Yongxing Zhang
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Hengyuan Li
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Haochen Mou
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Lingling Sun
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Hao Qu
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Fangqian Wang
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Zengjie Zhang
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Tao Chen
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Zhaoming Ye
- Department of Orthopedics, Musculoskeletal Tumor Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
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10
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Mohanan NK, Shaji F, Koshre GR, Laishram RS. Alternative polyadenylation: An enigma of transcript length variation in health and disease. WILEY INTERDISCIPLINARY REVIEWS-RNA 2021; 13:e1692. [PMID: 34581021 DOI: 10.1002/wrna.1692] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/16/2021] [Accepted: 08/24/2021] [Indexed: 12/19/2022]
Abstract
Alternative polyadenylation (APA) is a molecular mechanism during a pre-mRNA processing that involves usage of more than one polyadenylation site (PA-site) generating transcripts of varying length from a single gene. The location of a PA-site affects transcript length and coding potential of an mRNA contributing to both mRNA and protein diversification. This variation in the transcript length affects mRNA stability and translation, mRNA subcellular and tissue localization, and protein function. APA is now considered as an important regulatory mechanism in the pathophysiology of human diseases. An important consequence of the changes in the length of 3'-untranslated region (UTR) from disease-induced APA is altered protein expression. Yet, the relationship between 3'-UTR length and protein expression remains a paradox in a majority of diseases. Here, we review occurrence of APA, mechanism of PA-site selection, and consequences of transcript length variation in different diseases. Emerging evidence reveals coordinated involvement of core RNA processing factors including poly(A) polymerases in the PA-site selection in diseases-associated APAs. Targeting such APA regulators will be therapeutically significant in combating drug resistance in cancer and other complex diseases. This article is categorized under: RNA Processing > 3' End Processing RNA in Disease and Development > RNA in Disease Translation > Regulation.
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Affiliation(s)
- Neeraja K Mohanan
- Cardiovascular and Diabetes Biology Group, Rajiv Gandhi Centre for Biotechnology, Trivandrum, India
- Manipal Academy of Higher Education, Manipal, India
| | - Feba Shaji
- Cardiovascular and Diabetes Biology Group, Rajiv Gandhi Centre for Biotechnology, Trivandrum, India
- Regional Centre for Biotechnology, Faridabad, India
| | - Ganesh R Koshre
- Cardiovascular and Diabetes Biology Group, Rajiv Gandhi Centre for Biotechnology, Trivandrum, India
- Manipal Academy of Higher Education, Manipal, India
| | - Rakesh S Laishram
- Cardiovascular and Diabetes Biology Group, Rajiv Gandhi Centre for Biotechnology, Trivandrum, India
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11
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MicroRNA and cyclooxygenase-2 in breast cancer. Clin Chim Acta 2021; 522:36-44. [PMID: 34389281 DOI: 10.1016/j.cca.2021.08.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/30/2021] [Accepted: 08/07/2021] [Indexed: 12/24/2022]
Abstract
Cancer remains a major public health problem worldwide and the latest statistics show that breast cancer (BC) is among the most frequent in women. MicroRNAs (miRNAs; miRs) and cyclooxygenase-2 (COX-2) are new diagnostic and therapeutic biomarkers for monitoring BC. COX-2 is a prominent tumor-associated inflammatory factor highly expressed in human tumor cells, including BC. Expression of COX-2 contributes to tumor growth, metastasis and recurrence. MiRs are a group of short (~22 nucleotides), noncoding regulatory RNAs that downregulate gene expression post-transcriptionally and play vital roles in regulating cancer development and progression. Interestingly, there are a group of miRNAs differentially expressed in breast tumor tissue. Understanding the pathway linking miRNAs to COX-2 can provide novel insight for suppressing COX-2 expression via gene silencing thereby leading to the development of selective miRNA inhibitors. Further research can also reveal key intermediate players and their potential as therapeutic targets. Given the association between different miRNAs and COX-2 expression in BC, this review presents a comprehensive overview of the current literature concerning how miRNAs and COX-2 signaling interact in BC progression.
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12
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CD147 receptor is essential for TFF3-mediated signaling regulating colorectal cancer progression. Signal Transduct Target Ther 2021; 6:268. [PMID: 34262017 PMCID: PMC8280106 DOI: 10.1038/s41392-021-00677-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 06/15/2021] [Indexed: 02/06/2023] Open
Abstract
Major gaps in understanding the molecular mechanisms of colorectal cancer (CRC) progression and intestinal mucosal repair have hampered therapeutic development for gastrointestinal disorders. Trefoil factor 3 (TFF3) has been reported to be involved in CRC progression and intestinal mucosal repair; however, how TFF3 drives tumors to become more aggressive or metastatic and how TFF3 promotes intestinal mucosal repair are still poorly understood. Here, we found that the upregulated TFF3 in CRC predicted a worse overall survival rate. TFF3 deficiency impaired mucosal restitution and adenocarcinogenesis. CD147, a membrane protein, was identified as a binding partner for TFF3. Via binding to CD147, TFF3 enhanced CD147-CD44s interaction, resulting in signal transducer and activator of transcription 3 (STAT3) activation and prostaglandin G/H synthase 2 (PTGS2) expression, which were indispensable for TFF3-induced migration, proliferation, and invasion. PTGS2-derived PGE2 bound to prostaglandin E2 receptor EP4 subtype (PTGER4) and contributed to TFF3-stimulated CRC progression. Solution NMR studies of the TFF3-CD147 interaction revealed the key residues critical for TFF3 binding and the induction of PTGS2 expression. The ability of TFF3 to enhance mucosal restitution was weakened by a PTGS2 inhibitor. Blockade of TFF3-CD147 signaling using competitive inhibitory antibodies or a PTGS2 inhibitor reduced CRC lung metastasis in mice. Our findings bring strong evidence that CD147 is a novel receptor for TFF3 and PTGS2 signaling is critical for TFF3-induced mucosal restitution and CRC progression, which widens and deepens the understanding of the molecular function of trefoil factors.
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13
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CPSF4 regulates circRNA formation and microRNA mediated gene silencing in hepatocellular carcinoma. Oncogene 2021; 40:4338-4351. [PMID: 34103682 DOI: 10.1038/s41388-021-01867-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 05/13/2021] [Accepted: 05/25/2021] [Indexed: 11/08/2022]
Abstract
CircRNAs play essential roles in various physiological processes and involves in many diseases, in particular cancer. Global downregulation of circRNA expression has been observed in hepatocellular carcinoma (HCC) in many studies. Previous studies revealed that the pre-mRNA 3' end processing complex participates in circRNA cyclization and plays an important role in HCC tumorigenesis. Therefore, we explored the role of CPSF4, for 3' end formation and cleavage, in circRNA formation. Clinical research has shown that CPSF4 expression is upregulated in HCC and that high expression of CPSF4 is associated with poor prognosis in HCC patients. Mechanistic studies have demonstrated that CPSF4 reduces the levels of circRNAs, which possess a polyadenylation signal sequence and this decrease in circRNAs reduces the accumulation of miRNA and disrupts the miRNA-mediated gene silencing in HCC. Experiments in cell culture and xenograft mouse models showed that CPSF4 promotes the proliferation of HCC cells and enhances tumorigenicity. Moreover, CPSF4 antagonizes the tumor suppressor effect of its downstream circRNA in HCC. In summary, CPSF4 acts as an oncogene in HCC through circRNA inhibition and disruption of miRNA-mediated gene silencing.
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14
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Zhang Y, Liu L, Qiu Q, Zhou Q, Ding J, Lu Y, Liu P. Alternative polyadenylation: methods, mechanism, function, and role in cancer. J Exp Clin Cancer Res 2021; 40:51. [PMID: 33526057 PMCID: PMC7852185 DOI: 10.1186/s13046-021-01852-7] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Accepted: 01/20/2021] [Indexed: 12/12/2022] Open
Abstract
Occurring in over 60% of human genes, alternative polyadenylation (APA) results in numerous transcripts with differing 3'ends, thus greatly expanding the diversity of mRNAs and of proteins derived from a single gene. As a key molecular mechanism, APA is involved in various gene regulation steps including mRNA maturation, mRNA stability, cellular RNA decay, and protein diversification. APA is frequently dysregulated in cancers leading to changes in oncogenes and tumor suppressor gene expressions. Recent studies have revealed various APA regulatory mechanisms that promote the development and progression of a number of human diseases, including cancer. Here, we provide an overview of four types of APA and their impacts on gene regulation. We focus particularly on the interaction of APA with microRNAs, RNA binding proteins and other related factors, the core pre-mRNA 3'end processing complex, and 3'UTR length change. We also describe next-generation sequencing methods and computational tools for use in poly(A) signal detection and APA repositories and databases. Finally, we summarize the current understanding of APA in cancer and provide our vision for future APA related research.
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Affiliation(s)
- Yi Zhang
- Department of Respiratory Medicine, Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310016, Zhejiang, China
| | - Lian Liu
- Department of Respiratory Medicine, Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310016, Zhejiang, China
| | - Qiongzi Qiu
- Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang Province, Women's Reproductive Health Key Laboratory of Zhejiang Province, Department of Gynecologic Oncology, Women's Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China
| | - Qing Zhou
- Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang Province, Women's Reproductive Health Key Laboratory of Zhejiang Province, Department of Gynecologic Oncology, Women's Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China
| | - Jinwang Ding
- Department of Head and Neck Surgery, Cancer Hospital of the University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Key Laboratory of Head & Neck Cancer Translational Research of Zhejiang Province, Hangzhou, 310022, Zhejiang, China.
| | - Yan Lu
- Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang Province, Women's Reproductive Health Key Laboratory of Zhejiang Province, Department of Gynecologic Oncology, Women's Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China.
- Cancer Center, Zhejiang University, Hangzhou, 310029, Zhejiang, China.
| | - Pengyuan Liu
- Department of Respiratory Medicine, Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, 310016, Zhejiang, China.
- Department of Physiology, Center of Systems Molecular Medicine, Medical College of Wisconsin, Milwaukee, WI, 53226, USA.
- Cancer Center, Zhejiang University, Hangzhou, 310029, Zhejiang, China.
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15
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Zhang M, Lin H, Ge X, Xu Y. Overproduced CPSF4 Promotes Cell Proliferation and Invasion via PI3K-AKT Signaling Pathway in Oral Squamous Cell Carcinoma. J Oral Maxillofac Surg 2021; 79:1177.e1-1177.e14. [PMID: 33535057 DOI: 10.1016/j.joms.2020.12.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 12/29/2020] [Accepted: 12/29/2020] [Indexed: 01/04/2023]
Abstract
PURPOSE Invasion and metastasis are major challenges in the treatment of oral cancer. We hypothesize that cleavage and polyadenylation specific factor 4 (CPSF4), a key mediator of cell growth and metastasis in several types of cancers, contributes to oral squamous cell carcinoma (OSCC) pathogenesis. MATERIALS AND METHODS The expression and production of CPSF4 in OSCC cell lines and tumor tissues were assessed by RT-PCR and western blot, respectively. The relationships between CPSF4 production and OSCC clinicopathological features were analyzed using immunohistochemistry. The effects of CPSF4 on viability, proliferation, migration, invasion, cell cycle distribution, and apoptosis of OSCC cells were measured by MTS assay, colony formation assay, wound-healing, transwell invasion assay, flow cytometry, and cell apoptosis assay, respectively. Western blot analysis was used to assess alteration of PI3K-AKT pathway member levels in cell lines transfected with CPSF4 siRNA. Mice xenograft models were used to determine the effect of CPSF4 on OSCC tumor growth in vivo. RESULTS CPSF4 was highly expressed in OSCC cell lines and tumor tissues compared with adjacent normal oral tissues. High CPSF4 expression was strongly correlated with vascular invasion (P = .004), distant metastasis (P = .001), and TNM stages (P = .001). Moreover, reduction of CPSF4 levels contributed to the inhibition of cell viability, proliferation, invasion and migration, and the induction of apoptosis in OSCC cell lines. Reduction of CPSF4 levels results in OSCC cell cycle arrest in G1 phase by targeting c-Myc. CPSF4 contributed to proliferation inhibition via PI3K-AKT signaling pathway. Reduction of CPSF4 levels inhibits OSCC tumor growth in vivo. CONCLUSIONS Our results suggest that CPSF4 supports OSCC invasion and metastasis and may be a promising therapeutic target for OSCC.
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Affiliation(s)
- Mingjie Zhang
- Resident, Department of Orthodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Han Lin
- Resident, Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Xiaohan Ge
- Graduate Student, Guanghua School of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Yue Xu
- Professor, Department of Orthodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.
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16
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Jin J, Zhou M, Wang X, Liu M, Huang H, Yan F, Yu Z, Shu X, Huo X, Feng L, Zhang B, Huang S, Deng S, Wang C, Ma X. Triptolidenol, isolated from Tripterygium wilfordii, disrupted NF-κB/COX-2 pathway by targeting ATP-binding sites of IKKβ in clear cell renal cell carcinoma. Fitoterapia 2020; 148:104779. [PMID: 33242535 DOI: 10.1016/j.fitote.2020.104779] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/19/2020] [Accepted: 11/21/2020] [Indexed: 10/22/2022]
Abstract
Triptolidenol (TPD) is an epoxy diterpene lactone from Tripterygium wilfordii, which has been used for chronic nephritis in China,and possessed various pharmacological properties, such as anti-inflammatory and anti-cancer activities. However, the precise molecular antitumor mechanism of TPD remains to be elucidated. In this study, we investigated the effects of TPD on human clear cell renal cell carcinoma (ccRCC) and investigated its precise anti-tumor mechanisms. It was showed that TPD significantly suppressed ccRCC cell proliferation, cell migration, and induced cell cycle arrest at S phase. Furthermore, TPD also induced apoptosis by activating the cytochrome c (cyt c)/caspase cascade signaling pathway. Moreover, using confocal immunofluorescence, a dual-luciferase reporter assay and molecular docking study, the results showed that TPD obviously reduced the expression of COX-2 by inhibiting the kinase activity of IKKβ via targeting its ATP-binding domain, and then attenuating the transactivation of NF-κB. Collectively, our study demonstrated that TPD suppressed renal cell carcinoma growth through disrupting NF-κB/COX-2 pathway by targeting ATP-binding sites of IKKβ, and provided pharmacological evidence that TPD exhibits potential use in the treatment of COX-2-mediated diseases such as ccRCC.
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Affiliation(s)
- Junmei Jin
- Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China; Academy of Integrative Medicine, College of Pharmacy, Dalian Medical University, The Third People's Hospital of Dalian, Non-Directly Affiliated Hospital of Dalian Medical University, Dalian 116044, China
| | - Meirong Zhou
- Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China; Academy of Integrative Medicine, College of Pharmacy, Dalian Medical University, The Third People's Hospital of Dalian, Non-Directly Affiliated Hospital of Dalian Medical University, Dalian 116044, China
| | - Xun Wang
- Academy of Integrative Medicine, College of Pharmacy, Dalian Medical University, The Third People's Hospital of Dalian, Non-Directly Affiliated Hospital of Dalian Medical University, Dalian 116044, China
| | - Min Liu
- Academy of Integrative Medicine, College of Pharmacy, Dalian Medical University, The Third People's Hospital of Dalian, Non-Directly Affiliated Hospital of Dalian Medical University, Dalian 116044, China; Neurology Department, Dalian University Affiliated Xinhua Hospital, Dalian 116021, China
| | - Huilian Huang
- Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Fei Yan
- Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Zhenlong Yu
- Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China; Academy of Integrative Medicine, College of Pharmacy, Dalian Medical University, The Third People's Hospital of Dalian, Non-Directly Affiliated Hospital of Dalian Medical University, Dalian 116044, China.
| | - Xiaohong Shu
- Academy of Integrative Medicine, College of Pharmacy, Dalian Medical University, The Third People's Hospital of Dalian, Non-Directly Affiliated Hospital of Dalian Medical University, Dalian 116044, China
| | - Xiaokui Huo
- Academy of Integrative Medicine, College of Pharmacy, Dalian Medical University, The Third People's Hospital of Dalian, Non-Directly Affiliated Hospital of Dalian Medical University, Dalian 116044, China
| | - Lei Feng
- Academy of Integrative Medicine, College of Pharmacy, Dalian Medical University, The Third People's Hospital of Dalian, Non-Directly Affiliated Hospital of Dalian Medical University, Dalian 116044, China
| | - Baojing Zhang
- Academy of Integrative Medicine, College of Pharmacy, Dalian Medical University, The Third People's Hospital of Dalian, Non-Directly Affiliated Hospital of Dalian Medical University, Dalian 116044, China
| | - Shanshan Huang
- Academy of Integrative Medicine, College of Pharmacy, Dalian Medical University, The Third People's Hospital of Dalian, Non-Directly Affiliated Hospital of Dalian Medical University, Dalian 116044, China
| | - Sa Deng
- Academy of Integrative Medicine, College of Pharmacy, Dalian Medical University, The Third People's Hospital of Dalian, Non-Directly Affiliated Hospital of Dalian Medical University, Dalian 116044, China
| | - Chao Wang
- Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China.
| | - Xiaochi Ma
- Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
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17
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Zhang X, Chen J, Cheng C, Li P, Cai F, Xu H, Lu Y, Cao N, Liu J, Wang J, Hua ZC, Zhuang H. Aspirin potentiates celecoxib-induced growth inhibition and apoptosis in human non-small cell lung cancer by targeting GRP78 activity. Ther Adv Med Oncol 2020; 12:1758835920947976. [PMID: 32994805 PMCID: PMC7502795 DOI: 10.1177/1758835920947976] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 07/13/2020] [Indexed: 12/24/2022] Open
Abstract
Background: Aspirin has recently emerged as an anticancer drug, but its therapeutic effect on lung cancer has been rarely reported, and the mechanism of action is still unclear. Long-term use of celecoxib in large doses causes serious side effects, and it is necessary to explore better ways to achieve curative effects. In this study, we evaluated the synergistic anticancer effects of celecoxib and aspirin in non-small cell lung cancer (NSCLC) cells. Methods: In vitro, we evaluated the combined effects of celecoxib (40 μM) and aspirin (8 mM) on cell apoptosis, cell cycle distribution, cell proliferation, cell migration and signaling pathways. Furthermore, the effect of aspirin (100 mg/kg body weight) and celecoxib (50 mg/kg body weight) on the growth of xenograft tumors was explored in vivo. Results: Our data suggest that cancer sensitivity to combined therapy using low concentrations of celecoxib and aspirin was higher than that of celecoxib or aspirin alone. Further research showed that the anti-tumor effect of celecoxib combined with aspirin was mainly produced by activating caspase-9/caspase-3, arresting cell cycle and inhibiting the ERK-MAPK signaling pathway. In addition, celecoxib alone or in combination with aspirin inhibited the migration and invasion of NSCLC cells by inhibiting MMP-9 and MMP-2 activity levels. Moreover, we identified GRP78 as a target protein of aspirin in NSCLC cells. Aspirin induced an endoplasmic reticulum stress response by inhibiting GRP78 activity. Furthermore, combination therapy also exhibited a better inhibitory effect on tumor growth in vivo. Conclusions: Our study provides a rationale for further detailed preclinical and potential clinical studies of the combination of celecoxib and aspirin for NSCLC therapy.
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Affiliation(s)
- Xiangyu Zhang
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, P. R. China
| | - Jia Chen
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, P. R. China
| | - Cheng Cheng
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, P. R. China
| | - Ping Li
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, P. R. China
| | - Fangfang Cai
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, P. R. China
| | - Huangru Xu
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, P. R. China
| | - Yanyan Lu
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, P. R. China
| | - Nini Cao
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, P. R. China
| | - Jia Liu
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, P. R. China
| | - Jigang Wang
- Department of Biological Science, National University of Singapore, Singapore, 117543, Singapore
| | - Zi-Chun Hua
- School of Life Sciences, Nanjing University, 163 Xianlin Blvd., Nanjing, 210023, China
| | - Hongqin Zhuang
- School of Life Sciences, Nanjing University, 163 Xianlin Blvd., Nanjing, 210023, China
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18
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Ma T, Zhou Y, Xia Y, Meng X, Jin H, Wang B, Chen Y, Qiu J, Wu J, Ding J, Han X, Li D. Maternal Exposure to Di- n-butyl Phthalate Promotes the Formation of Testicular Tight Junctions through Downregulation of NF-κB/COX-2/PGE 2/MMP-2 in Mouse Offspring. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:8245-8258. [PMID: 32525310 DOI: 10.1021/acs.est.0c01701] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Previous studies demonstrated that maternal exposure to di-n-butyl phthalate (DBP) resulted in developmental disorder of the male reproductive organ; however, the underlying mechanism has not been thoroughly elucidated to date. The present study was aimed to investigate the effects of maternal exposure to DBP on the formation of the Sertoli cell (SC)-based tight junctions (TJs) in the testes of male offspring mice and the underlying molecular mechanism. By observing the pathological structure and ultrastructure, permeability analysis of the testis of 22 day male offspring in vivo, and transepithelial electrical resistance measurement of inter-SCs in vitro, we found that the formation of TJs between SCs in offspring mice was accelerated, which was paralleled by the accumulation of TJ protein occludin at 50 mg/kg/day DBP exposure in utero and 0.1 mM monobutyl phthalate (MBP, the active metabolite of DBP) in vitro. Our in vitro results demonstrated that 0.1 mM MBP downregulated the expression of matrix metalloproteinase-2 (MMP-2) by inhibiting the activation of nuclear factor-κB (NF-κB)/cyclooxygenase-2 (COX-2)/prostaglandin E2 (PGE2) cascades via attenuated binding of NF-κB to both the MMP-2 promoter and COX-2 promoter. Taken together, the data confirmed that maternal exposure to a relatively low dose of DBP promoted the formation of testicular TJs through downregulation of NF-κB/COX-2/PGE2/MMP-2, which might promote the development of the testis during puberty. Our findings may provide new perspectives for prenatal DBP exposure, which is a potential environmental contributor, leading to earlier puberty in male offspring mice.
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Affiliation(s)
- Tan Ma
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Yuan Zhou
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Yunhui Xia
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Xiannan Meng
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Haibo Jin
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Bo Wang
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Yusheng Chen
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Jiayin Qiu
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Jiang Wu
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Jie Ding
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Xiaodong Han
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Dongmei Li
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
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19
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Wang X, Jiang G, Ren W, Wang B, Yang C, Li M. LncRNA NEAT1 Regulates 5-Fu Sensitivity, Apoptosis and Invasion in Colorectal Cancer Through the MiR-150-5p/CPSF4 Axis. Onco Targets Ther 2020; 13:6373-6383. [PMID: 32669857 PMCID: PMC7336013 DOI: 10.2147/ott.s239432] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 06/04/2020] [Indexed: 12/14/2022] Open
Abstract
Background Colorectal cancer (CRC) is one of the most prevalent malignancies in the world. Long non-coding RNA (lncRNA) nuclear enriched abundant transcript 1 (NEAT1) is involved in the development of many cancers. However, its role and mechanism in CRC progression still need further exploration. Methods The expression levels of lnc-NEAT1, microRNA-150-5p (miR-150-5p) and cleavage and polyadenylation specific factor 4 (CPSF4) were determined by quantitative real-time PCR (qRT-PCR). The sensitivity of cells to 5-fluorouracil (5-Fu) was measured by 3-(4,5-dimethyl-2 thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) assay. Cell apoptosis and invasion were evaluated by flow cytometry and transwell assays, respectively. Western blot (WB) analysis was used to assess the levels of resistance-related proteins and CPSF4 protein. Besides, dual-luciferase reporter assay was used to verify the interactions among lnc-NEAT1, miR-150-5p and CPSF4. Also, mice xenograft models were used to determine the effect of lnc-NEAT1 on CRC tumor growth in vivo. Results In CRC, the expression of lnc-NEAT1 was upregulated and miR-150-5p was downregulated, and the expression of both was negatively correlated. Silencing of lnc-NEAT1 promoted the 5-Fu sensitivity, enhanced the apoptosis and suppressed the invasion of CRC cells. MiR-150-5p could be sponged by lnc-NEAT1, and its inhibitors could partially reverse the effect of lnc-NEAT1 silencing on CRC progression. Besides, CPSF4 could be targeted by miR-150-5p, and its overexpression also could invert the effect of lnc-NEAT1 knockdown on CRC progression. Further, CPSF4 expression was regulated by lnc-NEAT1 and miR-150-5p. In addition, interference of lnc-NEAT1 reduced tumor volume and improved the sensitivity of CRC to 5-Fu in vivo. Conclusion Lnc-NEAT1 acted as an oncogene in CRC through regulating CPSF4 expression by sponging miR-150-5p. The discovery of lnc-NEAT1/miR-150-5p/CPSF4 axis provided a novel approach for CRC genomic therapy strategy.
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Affiliation(s)
- Xuesong Wang
- Department of Colorectal & Anal Surgery, Central Hospital of Cangzhou, Cangzhou 061000, Hebei, People's Republic of China
| | - Guosheng Jiang
- Department of Colorectal & Anal Surgery, Central Hospital of Cangzhou, Cangzhou 061000, Hebei, People's Republic of China
| | - Weidan Ren
- Department of Colorectal & Anal Surgery, Central Hospital of Cangzhou, Cangzhou 061000, Hebei, People's Republic of China
| | - Bo Wang
- Department of Colorectal & Anal Surgery, Central Hospital of Cangzhou, Cangzhou 061000, Hebei, People's Republic of China
| | - Chuanwei Yang
- Department of Colorectal & Anal Surgery, Central Hospital of Cangzhou, Cangzhou 061000, Hebei, People's Republic of China
| | - Meishuang Li
- Department of Colorectal & Anal Surgery, Central Hospital of Cangzhou, Cangzhou 061000, Hebei, People's Republic of China
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20
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Nourse J, Spada S, Danckwardt S. Emerging Roles of RNA 3'-end Cleavage and Polyadenylation in Pathogenesis, Diagnosis and Therapy of Human Disorders. Biomolecules 2020; 10:biom10060915. [PMID: 32560344 PMCID: PMC7356254 DOI: 10.3390/biom10060915] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/10/2020] [Accepted: 06/13/2020] [Indexed: 12/11/2022] Open
Abstract
A crucial feature of gene expression involves RNA processing to produce 3′ ends through a process termed 3′ end cleavage and polyadenylation (CPA). This ensures the nascent RNA molecule can exit the nucleus and be translated to ultimately give rise to a protein which can execute a function. Further, alternative polyadenylation (APA) can produce distinct transcript isoforms, profoundly expanding the complexity of the transcriptome. CPA is carried out by multi-component protein complexes interacting with multiple RNA motifs and is tightly coupled to transcription, other steps of RNA processing, and even epigenetic modifications. CPA and APA contribute to the maintenance of a multitude of diverse physiological processes. It is therefore not surprising that disruptions of CPA and APA can lead to devastating disorders. Here, we review potential CPA and APA mechanisms involving both loss and gain of function that can have tremendous impacts on health and disease. Ultimately we highlight the emerging diagnostic and therapeutic potential CPA and APA offer.
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Affiliation(s)
- Jamie Nourse
- Institute for Clinical Chemistry and Laboratory Medicine, University Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany; (J.N.); (S.S.)
- Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany
| | - Stefano Spada
- Institute for Clinical Chemistry and Laboratory Medicine, University Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany; (J.N.); (S.S.)
- Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany
| | - Sven Danckwardt
- Institute for Clinical Chemistry and Laboratory Medicine, University Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany; (J.N.); (S.S.)
- Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Rhine-Main, Germany
- Correspondence:
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21
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Liu L, Fan Y, Chen Z, Zhang Y, Yu J. CaSR Induces Osteoclast Differentiation and Promotes Bone Metastasis in Lung Adenocarcinoma. Front Oncol 2020; 10:305. [PMID: 32269963 PMCID: PMC7109411 DOI: 10.3389/fonc.2020.00305] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 02/20/2020] [Indexed: 12/29/2022] Open
Abstract
Objective: Explore the mechanism of CaSR's involvement in bone metastasis in lung adenocarcinoma. Methods: Immunohistochemistry (IHC) was used to detect the expression of calcium-sensing receptor (CaSR) in 120 cases of lung adenocarcinoma with bone metastasis. Stably transfected cell lines with CaSR overexpression and knockdown based on A549 cells were constructed. The expression of CaSR was verified by western blot and qPCR. The proliferation and migration abilities of A549 cells were tested using cholecystokinin-8 (CCK-8) and Transwell assays, respectively. Western blotting was used to detect the expression of matrix metalloproteinases MMP2, MMP9, CaSR, and NF-κB. The supernatant from each cell culture group was collected as a conditional co-culture solution to study the induction of osteoclast precursor cells and osteoblasts. Western blot and qPCR were used to validate the expression of bone matrix degradation-related enzymes cathepsin K and hormone calcitonin receptor (CTR) and osteoblast-induced osteoclast maturation and differentiation enzyme receptor activator of nuclear factor-κB ligand (RANKL), macrophage colony-stimulating factor (M-CSF), osteoprotegerin (OPG), and PTHrP. Immunofluorescent staining was used to detect F-actin ring formation and osteocalcin expression. Western blot results for NF-κB expression identified a regulatory relationship between NF-κB and CaSR. Results: CaSR expression in lung cancer tissues was significantly higher than that in adjacent and normal lung tissues. The expression of CaSR in lung cancer tissues with bone metastasis was higher than that in non-metastatic lung cancer tissues. The proliferation and migration ability of A549 cells increased significantly with overexpressed CaSR. The co-culture solution directly induced osteoclast precursor cells and the expression of bone matrix degradation-related enzymes significantly increased. Osteoblasts were significantly inhibited and osteoblast-induced osteoclast maturation and differentiation enzymes were significantly downregulated. It was found that the expression of NF-κB and PTHrP increased when CaSR was overexpressed. Osteoclast differentiation factor expression was also significantly increased, which directly induces osteoclast differentiation and maturation. These results were reversed when CaSR was knocked down. Conclusions: CaSR can positively regulate NF-κB and PTHrP expression in A549 cells with a high metastatic potential, thereby promoting osteoclast differentiation and maturation, and facilitating the occurrence and development of bone metastasis in lung adenocarcinoma.
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Affiliation(s)
- Lian Liu
- Cancer Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yichang Fan
- Cancer Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Zhaoxin Chen
- Cancer Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yujian Zhang
- Cancer Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Jing Yu
- Cancer Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
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22
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Wu J, Miao J, Ding Y, Zhang Y, Huang X, Zhou X, Tang R. MiR-4458 inhibits breast cancer cell growth, migration, and invasiveness by targeting CPSF4. Biochem Cell Biol 2019; 97:722-730. [PMID: 30970220 DOI: 10.1139/bcb-2019-0008] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Numerous studies have reported that CPSF4 is over-expressed in a large percentage of human lung cancers, and CPSF4 has been identified as a potential oncogene of human lung tumor. Downregulation of CPSF4 inhibits the proliferation and promotes the apoptosis of lung adenocarcinoma cells. A previous study by our group also found overexpression of CPSF4 in breast cancer (BC), and was closely associated with a poor prognosis for the patient. This study investigates microRNAs (miRNAs) that target CPSF4 to modulate BC cell proliferation. We found that miR-4458 was noticeably reduced in BC tissues and cells. Using a miR-4458 mimic, we found that cell proliferation, migration, and invasiveness were suppressed by miR-4458 overexpression, and were enhanced by reducing the expression of miR-4458. Moreover, the results from bioinformatics analyses suggest a putative target site in the CPSF4 3'-UTR. Furthermore, using luciferase reporter assays and Western blotting, we verified that miR-4458 directly targets the 3'-UTR of CPSF4 and downregulates COX-2 and h-TERT, which are downstream target genes of CPSF4. Additionally, PI3K/AKT and ERK were shown to be inhibited by miR-4458 overexpression in BC cells. Moreover, miR-4458 suppresses BC cell growth in vivo. Consequently, these results suggest that the miR-4458-CPSF4-COX-2-hTERT axis might serve as a potential target for the treatment of BC patients.
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Affiliation(s)
- Jianrong Wu
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P.R. China
| | - Juan Miao
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ye Ding
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Yayun Zhang
- Institute of Cancer Stem Cell & First Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Xiaohao Huang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xue Zhou
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - Ranran Tang
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
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23
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Su Y, Wang J. JmjC domain-containing protein 8 (JMJD8) represses Ku70/Ku80 expression via attenuating AKT/NF-κB/COX-2 signaling. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:118541. [PMID: 31473257 DOI: 10.1016/j.bbamcr.2019.118541] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 08/20/2019] [Accepted: 08/27/2019] [Indexed: 02/06/2023]
Abstract
Jumonji C (JmjC) domain-containing proteins have been shown to regulate cellular processes by hydroxylating or demethylating histone and non-histone targets. JMJD8 is a Jumonji C domain-containing protein localized in the lumen of the endoplasmic reticulum and was recently shown to be involved in endothelial differentiation and cellular inflammation response. However, other physiological functions of JMJD8 remain to be elucidated. In this research, we found that knockdown of JMJD8 in cancer cells significantly increased cell proliferation, and attenuated ionizing irradiation or etoposide treatment-induced DNA double-strand breaks (DSBs) level through enhancing the expression of Ku70 and Ku80 which are key participants in the non-homologous end-joining repair of DSBs. We also provided evidence to show that knockdown of JMJD8 up-regulated cyclooxygenase-2 (COX-2) expression which contributed to the enhanced expression of Ku70/Ku80 as shown by the results that pre-treatment of JMJD8 knockdown cells with COX-2 selective inhibitor NS-398 inhibited the induction of Ku70/Ku80. Furthermore, we identified that the up-regulation of COX-2 in JMJD8 knockdown cells was partially due to the increased activation of AKT/NF-κB signaling, and LY294002 (an inhibitor of the PI3K/AKT signaling pathway) repressed the induction of COX-2 and Ku70/Ku80. In conclusion, our research provided data to establish the role of JMJD8 in regulating tumor cell proliferation and their sensitivity to ionizing irradiation or chemo-therapy drug, and the AKT/NF-κB/COX-2 signaling mediated expression of Ku70/Ku80 was involved. The results of this research indicated that JMJD8 is a potential target for enhancing the efficacy of tumor radio- and chemo-therapies.
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Affiliation(s)
- Yao Su
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Chinese Academy of Sciences, Hefei 230031, China; University of Science and Technology of China, Hefei 230026, China
| | - Jun Wang
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Chinese Academy of Sciences, Hefei 230031, China.
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24
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Ning Y, Liu W, Guan X, Xie X, Zhang Y. CPSF3 is a promising prognostic biomarker and predicts recurrence of non-small cell lung cancer. Oncol Lett 2019; 18:2835-2844. [PMID: 31452762 PMCID: PMC6704296 DOI: 10.3892/ol.2019.10659] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 05/17/2019] [Indexed: 12/04/2022] Open
Abstract
Cleavage polyadenylation specificity factor (CPSF) is the core component of the 3′-end processing complex, which determines the site of 3′-end cleavage interactions of specific sequence elements within pre-mRNAs. The present study revealed that all members of the CPSF complex were overexpressed in lung cancer tissue from The Cancer Genome Atlas (TCGA) Lung Cancer Cohort compared with normal lung tissue. Analysis of overall survival and recurrence-free survival verified that only CPSF3 was associated with prognosis and recurrence of lung adenocarcinoma (LUAD), and thus could be a promising biomarker. Additionally, receiver operating characteristic curve analysis revealed that CPSF3 may function as a diagnostic biomarker to distinguish between two histological subtypes of non-small cell lung cancer. Furthermore, analysis of the association of CPSF3 expression with clinicopathological parameters indicated that CPSF3 was associated with smoking history, tumor diameter, lymph node metastasis, clinical stage and radiation therapy in LUAD. Additionally, analysis of the DNA methylation data of the TCGA-LUAD Cohort revealed that CPSF3 DNA CpG sites (cg12057242 and cg25739938) were generally hypomethylated in LUAD compared with normal lung tissue. Correlation analysis identified the CPSF3 DNA CpG site cg25739938 to be negatively correlated with CPSF3 expression, while no correlation was identified with cg12057242. In addition, correlation analysis demonstrated that the overexpression of CPSF3 was correlated with CPSF3 DNA copy number variants (CNAs). The findings indicate that abnormal expression of CPSF3 may be caused by DNA CNAs; and DNA hypermethylation and function may be a promising diagnostic and prognostic indicator for LUAD.
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Affiliation(s)
- Yue Ning
- Department of Pathology, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
| | - Wanxia Liu
- Center for Transforming Medicine, Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, P.R. China
| | - Xiaoying Guan
- Department of Experimental Nuclear Medicine and Radiology, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
| | - Xiaobin Xie
- Department of Pathology, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
| | - Yajie Zhang
- Department of Pathology, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
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25
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Fu X, Zhang H, Chen Z, Yang Z, Shi D, Liu T, Chen W, Yao F, Su X, Deng W, Chen M, Yang A. TFAP2B overexpression contributes to tumor growth and progression of thyroid cancer through the COX-2 signaling pathway. Cell Death Dis 2019; 10:397. [PMID: 31113934 PMCID: PMC6529436 DOI: 10.1038/s41419-019-1600-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 04/01/2019] [Accepted: 04/08/2019] [Indexed: 12/13/2022]
Abstract
Thyroid cancer is commonly seen in the clinic with a rapidly increasing incidence globally. COX-2 overexpression correlates with the pathologic type of thyroid carcinoma, and it has been suggested that COX-2 overexpression is associated with a poor prognosis. However, little is known about its upstream regulatory mechanism. Bioinformatics suggested that transcription factor AP-2 beta (TFAP2B) might specifically bind to the COX-2 promoter, which was confirmed by biotin-labeled COX-2 promoter pulldown and luciferase reporter assays. We performed western blot and immunohistochemical staining to detect the expression of TFAP2B/COX-2 in thyroid cancer tissues (T) and the matched adjacent noncarcinoma tissues (ANT), and investigated the relationship between TFAP2B/COX-2 expression and clinical pathological factors in thyroid cancer patients. Afterward, MTS, colony formation, cell-apoptosis assay, transwell-invasion and scratch assays were performed to examine the proliferation, apoptosis, invasion, and migration of thyroid cancer cells with TFAP2B knocked down or overexpressed. The mouse xenograft experiment was performed to study in vivo the proliferation of thyroid cancer cells with TFAP2B knocked down or overexpressed. We found that TFAP2B bound to the promoter of COX-2 to activate its expression. Western blot and immunohistochemistry showed that TFAP2B/COX-2 was highly expressed in thyroid cancer, and high TFAP2B and COX-2 expression was associated with aggressive clinicopathological features in thyroid cancer. TFAP2B mediated thyroid cancer cell proliferation, apoptosis, invasion, and migration via the COX-2 signaling pathway in vitro and in vivo. TFAP2B bound to the promoter of COX-2 to activate its expression, indicating that TFAP2B is a critical regulatory molecule in the COX-2 signaling pathway that promoted tumor progression in thyroid cancer.
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Affiliation(s)
- Xiaoyan Fu
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, China
| | - Huayong Zhang
- Department of Thyroid and Breast Surgery, the Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Zhipeng Chen
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, China
| | - Zhongyuan Yang
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, China
| | - Dingbo Shi
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, China
| | - Tianrun Liu
- Department of Otorhinolaryngology Head and Neck Surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Weichao Chen
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, China
| | - Fan Yao
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, China
| | - Xuan Su
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, China
| | - Wuguo Deng
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, China.
| | - Miao Chen
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, China.
| | - Ankui Yang
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, Guangzhou, Guangdong, China.
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26
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Ashraf S, Radhi M, Gowler P, Burston JJ, Gandhi RD, Thorn GJ, Piccinini AM, Walsh DA, Chapman V, de Moor CH. The polyadenylation inhibitor cordycepin reduces pain, inflammation and joint pathology in rodent models of osteoarthritis. Sci Rep 2019; 9:4696. [PMID: 30886197 PMCID: PMC6423048 DOI: 10.1038/s41598-019-41140-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 02/15/2019] [Indexed: 01/23/2023] Open
Abstract
Clinically, osteoarthritis (OA) pain is significantly associated with synovial inflammation. Identification of the mechanisms driving inflammation could reveal new targets to relieve this prevalent pain state. Herein, a role of polyadenylation in OA synovial samples was investigated, and the potential of the polyadenylation inhibitor cordycepin (3’ deoxyadenosine) to inhibit inflammation as well as to reduce pain and structural OA progression were studied. Joint tissues from people with OA with high or low grade inflammation and non-arthritic post-mortem controls were analysed for the polyadenylation factor CPSF4 and inflammatory markers. Effects of cordycepin on pain behavior and joint pathology were studied in models of OA (intra-articular injection of monosodium iodoacetate in rats and surgical destabilisation of the medial meniscus in mice). Human monocyte-derived macrophages and a mouse macrophage cell line were used to determine effects of cordycepin on nuclear localisation of the inflammatory transcription factor NFĸB and polyadenylation factors (WDR33 and CPSF4). CPSF4 and NFκB expression were increased in synovia from OA patients with high grade inflammation. Cordycepin reduced pain behaviour, synovial inflammation and joint pathology in both OA models. Stimulation of macrophages induced nuclear localisation of NFĸB and polyadenylation factors, effects inhibited by cordycepin. Knockdown of polyadenylation factors also prevented nuclear localisation of NFĸB. The increased expression of polyadenylation factors in OA synovia indicates a new target for analgesia treatments. This is supported by the finding that polyadenylation factors are required for inflammation in macrophages and by the fact that the polyadenylation inhibitor cordycepin attenuates pain and pathology in models of OA.
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Affiliation(s)
- Sadaf Ashraf
- School of Pharmacy, University of Nottingham, Nottingham, UK.,Arthritis Research UK Pain Centre, University of Nottingham, Nottingham, UK
| | - Masar Radhi
- School of Pharmacy, University of Nottingham, Nottingham, UK.,Arthritis Research UK Pain Centre, University of Nottingham, Nottingham, UK
| | - Peter Gowler
- School of Life Sciences, University of Nottingham, Nottingham, UK.,Arthritis Research UK Pain Centre, University of Nottingham, Nottingham, UK
| | - James J Burston
- School of Life Sciences, University of Nottingham, Nottingham, UK.,Arthritis Research UK Pain Centre, University of Nottingham, Nottingham, UK
| | - Raj D Gandhi
- School of Pharmacy, University of Nottingham, Nottingham, UK
| | - Graeme J Thorn
- School of Pharmacy, University of Nottingham, Nottingham, UK
| | | | - David A Walsh
- School of Medicine, University of Nottingham, Nottingham, UK.,Arthritis Research UK Pain Centre, University of Nottingham, Nottingham, UK.,NIHR Nottingham Biomedical Research Centre, Nottingham, UK
| | - Victoria Chapman
- School of Life Sciences, University of Nottingham, Nottingham, UK. .,Arthritis Research UK Pain Centre, University of Nottingham, Nottingham, UK. .,NIHR Nottingham Biomedical Research Centre, Nottingham, UK.
| | - Cornelia H de Moor
- School of Pharmacy, University of Nottingham, Nottingham, UK. .,Arthritis Research UK Pain Centre, University of Nottingham, Nottingham, UK.
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27
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Wang Y, Xu H, Jiao H, Wang S, Xiao Z, Zhao Y, Bi J, Wei W, Liu S, Qiu J, Li T, Liang L, Ye Y, Liao W, Ding Y. STX2 promotes colorectal cancer metastasis through a positive feedback loop that activates the NF-κB pathway. Cell Death Dis 2018; 9:664. [PMID: 29855462 PMCID: PMC5981218 DOI: 10.1038/s41419-018-0675-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 04/26/2018] [Accepted: 04/27/2018] [Indexed: 02/08/2023]
Abstract
Metastatic progression is the main contributor to the poor prognosis of colorectal cancer (CRC). Thus, identifying the determinants of CRC metastasis will be of great significance. Based on our previous bioinformatics analysis, Syntaxin2 (STX2) may be upregulated and correlated with the poor prognosis of CRC patients. In this study, we found that STX2 expression was associated with CRC invasion and metastasis and poor patient survival. Gain- and loss-of-function analyses demonstrated that STX2 functioned as a key oncogene by promoting CRC invasion and metastasis. Mechanistically, STX2 selectively interacted with tumor necrosis factor receptor-associated factor 6 (TRAF6) and activated the nuclear transcription factor-κB (NF-κB) signaling pathway. Furthermore, chromatin immunoprecipitation (ChIP) analysis revealed that NF-κB directly bound to the STX2 promoter and drove STX2 transcription. Therefore, STX2 activated the NF-κB pathway, and in turn, NF-κB increased STX2 expression, forming a positive signaling loop that eventually promoted CRC metastasis. Collectively, our results reveal STX2 as a crucial modulator of the aggressive CRC phenotype and highlight STX2 as a potential prognostic biomarker and therapeutic target for combating CRC metastasis.
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Affiliation(s)
- Yongxia Wang
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
- Department of Pathology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, China
| | - Honghai Xu
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
| | - Hongli Jiao
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
| | - Shuyang Wang
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
| | - Zhiyuan Xiao
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
| | - Yali Zhao
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
| | - Jiaxin Bi
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
| | - Wenting Wei
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
| | - Shanshan Liu
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
| | - Junfeng Qiu
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
| | - Tingting Li
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
| | - Li Liang
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
| | - Yaping Ye
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China.
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China.
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China.
| | - Wenting Liao
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China.
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China.
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China.
| | - Yanqing Ding
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China.
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China.
- Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China.
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Zhou W, Chen X, Hu Q, Chen X, Chen Y, Huang L. Galectin-3 activates TLR4/NF-κB signaling to promote lung adenocarcinoma cell proliferation through activating lncRNA-NEAT1 expression. BMC Cancer 2018; 18:580. [PMID: 29788922 PMCID: PMC5964910 DOI: 10.1186/s12885-018-4461-z] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 04/30/2018] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Lung cancer remains the top contributor to cancer-related mortality worldwide. Long non-coding RNAs (lncRNAs) have been reported to participate in normal development and tumorigenesis. LncRNA nuclear enriched abundant transcript 1 (NEAT1) is highly expressed in lung cancer and promotes lung cancer cell proliferation and migration. However, the upstream regulatory mechanism still needs investigation. METHODS In the present study, we investigated the upstream regulators and mechanisms of NEAT1 expression disorders. We first examined NEAT1 expression in lung adenocarcinoma tissues and its correlation with clinic features in patient with lung adenocarcinoma; next, the detailed function of NEAT1 in lung cancer cell proliferation and migration was assessed. To investigate whether NF-κB acts as a transcription factor of NEAT1 to activate its expression, we validated the combination between NF-κB and NEAT1, and NF-κB regulation of NEAT1 upon LPS stimulation. Further, the effect of NF-κB upstream regulator, TLR4, on NEAT1 expression upon LPS stimulation was examined. Galectin-3 reportedly serves as a ligand of TLR4 and promotes TLR4, MyD88 and p-p65 expression; we investigated whether Galectin-3 could modulate lung adenocarcinoma cell proliferation and migration through TLR4/NF-κB/NEAT1. Finally, the expression and correlation of the above factors in lung adenocarcinoma tissues was validated. RESULTS NEAT1 is highly expressed in lung adenocarcinoma tissues and promotes lung cancer cell proliferation and migration. NF-κB binds to NEAT1 promoter to activate NEAT1 expression after LPS-stimulated p65 nucleus translocation. LPS stimulation activates TLR4 signaling, followed by downstream NF-κB activation, and ultimately NEAT1 expression activation. Galectin-3 activates TLR4 signaling thus affecting lung cancer cell proliferation and migration through TLR4/NF-κB/NEAT1. Galectin-3 and TLR4 expression are abnormally up-regulated in lung adenocarcinoma tissues, and positively correlated with NEAT1 expression. CONCLUSION We confirmed that Galectin-3 as a ligand of TLR4 induced TLR4 signaling activation in lung adenocarcinoma cells, thereby activating downstream p65 nucleus translocation, promoting NEAT1 expression, and finally affecting lung adenocarcinoma cell proliferation and migration. Inhibiting Galectin-3-induced TLR4 signaling activation, thus to reduce p65-activated NEAT1 expression might be a promising strategy of suppressing lung adenocarcinoma cell proliferation and migration.
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Affiliation(s)
- Wu Zhou
- Department of Cardiothoracic Surgery, Xiangya Hospital, Central-South University, Xiangya road 87, Changsha, 410078, Hunan, China
| | - Xing Chen
- Department of Cardiothoracic Surgery, Xiangya Hospital, Central-South University, Xiangya road 87, Changsha, 410078, Hunan, China
| | - Qinghua Hu
- Department of Cardiothoracic Surgery, Xiangya Hospital, Central-South University, Xiangya road 87, Changsha, 410078, Hunan, China
| | - Xuliang Chen
- Department of Cardiothoracic Surgery, Xiangya Hospital, Central-South University, Xiangya road 87, Changsha, 410078, Hunan, China
| | - Yingji Chen
- Department of Cardiothoracic Surgery, Xiangya Hospital, Central-South University, Xiangya road 87, Changsha, 410078, Hunan, China
| | - Lingjin Huang
- Department of Cardiothoracic Surgery, Xiangya Hospital, Central-South University, Xiangya road 87, Changsha, 410078, Hunan, China.
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KMT2A promotes melanoma cell growth by targeting hTERT signaling pathway. Cell Death Dis 2017; 8:e2940. [PMID: 28726783 PMCID: PMC5550845 DOI: 10.1038/cddis.2017.285] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 05/24/2017] [Accepted: 05/26/2017] [Indexed: 01/08/2023]
Abstract
Melanoma is an aggressive cutaneous malignancy, illuminating the exact mechanisms and finding novel therapeutic targets are urgently needed. In this study, we identified KMT2A as a potential target, which promoted the growth of human melanoma cells. KMT2A knockdown significantly inhibited cell viability and cell migration and induced apoptosis, whereas KMT2A overexpression effectively promoted cell proliferation in various melanoma cell lines. Further study showed that KMT2A regulated melanoma cell growth by targeting the hTERT-dependent signal pathway. Knockdown of KMT2A markedly inhibited the promoter activity and expression of hTERT, and hTERT overexpression rescued the viability inhibition caused by KMT2A knockdown. Moreover, KMT2A knockdown suppressed tumorsphere formation and the expression of cancer stem cell markers, which was also reversed by hTERT overexpression. In addition, the results from a xenograft mouse model confirmed that KMT2A promoted melanoma growth via hTERT signaling. Finally, analyses of clinical samples demonstrated that the expression of KMT2A and hTERT were positively correlated in melanoma tumor tissues, and KMT2A high expression predicted poor prognosis in melanoma patients. Collectively, our results indicate that KMT2A promotes melanoma growth by activating the hTERT signaling, suggesting that the KMT2A/hTERT signaling pathway may be a potential therapeutic target for melanoma.
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Zhang Q, Zheng X, Sun Q, Shi R, Wang J, Zhu B, Xu L, Zhang G, Ren B. ZNF692 promotes proliferation and cell mobility in lung adenocarcinoma. Biochem Biophys Res Commun 2017; 490:1189-1196. [PMID: 28669730 DOI: 10.1016/j.bbrc.2017.06.180] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 06/28/2017] [Indexed: 12/25/2022]
Abstract
By analyzing The Cancer Genome Atlas (TCGA) datasets, we discovered that the zinc finger protein 692 (ZNF692) were over-expressed in Lung adenocarcinoma (LUAD) tissues compared to adjacent non-tumor tissues (P < 0.0001). In this study, we investigated the function of ZNF692 in the progression of LUAD. We found that ZNF692 knockdown inhibited LUAD cells proliferation, migration, and invasion both in vitro and in vivo. And LUAD cell apoptosis was induced following the down-regulation of ZNF692. Our results show that ZNF692 is over-expressed in LUAD tissues compared to adjacent normal tissues, and hyper-expression of ZNF692 in LUAD is an independent risk factor for worse overall survival in LUAD patients (HR: 8.800, 95%CI: 1.082-71.560, P = 0.042) by Tissue Microarray stain assay (TMA). GO analysis indicated that most genes were enriched in metabolic process which were associated highly with ZNF692 levels. Collectively, our results suggested that ZNF692 may serve as a potential oncogene and biomarker in LUAD by influencing cell metabolism.
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Affiliation(s)
- Quanli Zhang
- Department of Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, PR China; Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing, 210009, PR China; Department of Thoracic Surgery, Jiangsu Cancer Hospital, Institute Affiliated to Nanjing Medical University, Cancer Institute of Jiangsu Province, Baiziting 42, Xuanwu District, Nanjing, 210009, PR China.
| | - Xiufen Zheng
- Department of Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, PR China; Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing, 210009, PR China; Department of Thoracic Surgery, Jiangsu Cancer Hospital, Institute Affiliated to Nanjing Medical University, Cancer Institute of Jiangsu Province, Baiziting 42, Xuanwu District, Nanjing, 210009, PR China.
| | - Qi Sun
- Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing, 210009, PR China.
| | - Run Shi
- Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing, 210009, PR China; Department of Thoracic Surgery, Jiangsu Cancer Hospital, Institute Affiliated to Nanjing Medical University, Cancer Institute of Jiangsu Province, Baiziting 42, Xuanwu District, Nanjing, 210009, PR China.
| | - Jie Wang
- Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing, 210009, PR China; Department of Thoracic Surgery, Jiangsu Cancer Hospital, Institute Affiliated to Nanjing Medical University, Cancer Institute of Jiangsu Province, Baiziting 42, Xuanwu District, Nanjing, 210009, PR China.
| | - Biqing Zhu
- Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing, 210009, PR China; Department of Thoracic Surgery, Jiangsu Cancer Hospital, Institute Affiliated to Nanjing Medical University, Cancer Institute of Jiangsu Province, Baiziting 42, Xuanwu District, Nanjing, 210009, PR China.
| | - Lin Xu
- Department of Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, PR China; Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing, 210009, PR China; Department of Thoracic Surgery, Jiangsu Cancer Hospital, Institute Affiliated to Nanjing Medical University, Cancer Institute of Jiangsu Province, Baiziting 42, Xuanwu District, Nanjing, 210009, PR China.
| | - Guangqin Zhang
- Department of Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, PR China.
| | - Binhui Ren
- Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Nanjing, 210009, PR China; Department of Thoracic Surgery, Jiangsu Cancer Hospital, Institute Affiliated to Nanjing Medical University, Cancer Institute of Jiangsu Province, Baiziting 42, Xuanwu District, Nanjing, 210009, PR China.
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Cyclooxygenase-2 expression is positively associated with lymph node metastasis in nasopharyngeal carcinoma. PLoS One 2017; 12:e0173641. [PMID: 28301518 PMCID: PMC5354404 DOI: 10.1371/journal.pone.0173641] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 02/23/2017] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Accumulating evidence has demonstrated that cyclooxygenase-2 (COX-2) is involved in head and neck cancers, especially in nasopharyngeal carcinoma (NPC). However, the association between COX-2 expression and lymph node metastasis in NPC remains uncertain. This systematic review and meta-analysis meta-analysis investigated the relationship between COX-2 expression and lymph node metastasis and other signs of disease progression in NPC. METHODS Previously published studies assessing COX-2 expression and lymph node metastasis in NPC were identified in four English databases and three Chinese ones (Pubmed, Embase, Cochrane Database of Systematic Reviews, Web of Science, China National Knowledge Infrastructure, Wanfang, Vip Journal Integration Platform) up to November 2016. Quality of all eligible studies was assessed using the Newcastle-Ottawa Quality Assessment Scale (NOS). Pooled odds ratios (OR) and their 95% confidence intervals (95%CI) were calculated with fixed-effects or random-effects model to evaluate the effects of COX-2 expression on lymph node metastasis. RESULTS A total of 27 studies with 1797 NPC patients met the inclusion criteria. The expression of COX-2 was significantly higher in patients with nasopharyngeal carcinoma than those without the carcinoma, with a combined OR of 21.17 (95%CI = 15.02-29.85, I2 = 35.1%, Pheterogeneity = 0.070). A statistically significant association between COX-2 expression and lymph node metastasis in NPC patients, with an OR of 4.44 (95%CI = 3.46-5.70, I2 = 38.3%, Pheterogeneity = 0.024), and with other indicators of disease progression. Subgroup analyses based on COX-2 assay and staging criteria of TNM showed no significant heterogeneity. CONCLUSIONS The results suggest that expression of COX-2 is associated with lymph node metastasis and disease progression in NPC, indicating a potential role in evaluation of prognosis and in treatment decisions. COX-2 inhibitors have potential in the treatment of NPC that should be further investigated.
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