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Li L, Liu D, Chen T, Wei C, Qiao Y, Liu W, Liang Y, Liang Z, Chen C, Li D, Wu B, Zhao X, Huang D, Wu D. Hypoxia-enhanced YAP1-EIF4A3 interaction drives circ_0007386 circularization by competing with CRIM1 pre-mRNA linear splicing and promotes non-small cell lung cancer progression. J Exp Clin Cancer Res 2024; 43:200. [PMID: 39030638 PMCID: PMC11264895 DOI: 10.1186/s13046-024-03116-6] [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: 02/11/2024] [Accepted: 07/07/2024] [Indexed: 07/21/2024] Open
Abstract
BACKGROUND The progression of non-small cell lung cancer (NSCLC) is significantly influenced by circular RNAs (circRNAs), especially in tumor hypoxia microenvironment. However, the precise functions and underlying mechanisms of dysregulated circRNAs in NSCLC remain largely unexplored. METHODS Differentially expressed circRNAs in NSCLC tissues were identified through high-throughput RNA sequencing. The characteristics of circ_0007386 were rigorously confirmed via Sanger sequencing, RNase R treatment and actinomycin D treatment. The effects of circ_0007386 on proliferation and apoptosis were investigated using CCK8, cloning formation assays, TUNEL staining, and flow cytometry assays in vitro. In vivo, xenograft tumor models were used to evaluate its impact on proliferation. Mechanistically, the regulatory relationships of circ_0007386, miR-383-5p and CIRBP were examined through dual luciferase reporter assays and rescue experiments. Additionally, we detected the binding of EIF4A3 to CRIM1 pre-mRNA by RNA immunoprecipitation and the interaction between YAP1 and EIF4A3 under hypoxic conditions by co-immunoprecipitation. RESULTS Our investigation revealed a novel circRNA, designated as circ_0007386, that was upregulated in NSCLC tissues and cell lines. Circ_0007386 modulated proliferation and apoptosis in NSCLC both in vitro and in vivo. Functionally, circ_0007386 acted as a sponge for miR-383-5p, targeting CIRBP, which influenced NSCLC cell proliferation and apoptosis via the PI3K/AKT signaling pathway. Furthermore, under hypoxic conditions, the interaction between YAP1 and EIF4A3 was enhanced, leading to the displacement of EIF4A4 from binding to CRIM1 pre-mRNA. This facilitated the back-splicing of CRIM1 pre-mRNA, increasing the formation of circ_0007386. The circ_0007386/miR-383-5p/CIRBP axis was significantly associated with the clinical features and prognosis of NSCLC patients. CONCLUSIONS Circ_0007386, regulated by YAP1-EIF4A3 interaction under hypoxia conditions, plays an oncogenic role in NSCLC progression via the miR-383-5p/CIRBP axis.
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MESH Headings
- Humans
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/metabolism
- Carcinoma, Non-Small-Cell Lung/pathology
- RNA, Circular/genetics
- RNA, Circular/metabolism
- Lung Neoplasms/genetics
- Lung Neoplasms/metabolism
- Lung Neoplasms/pathology
- Animals
- YAP-Signaling Proteins/metabolism
- Mice
- Disease Progression
- Eukaryotic Initiation Factor-4A/metabolism
- Eukaryotic Initiation Factor-4A/genetics
- Transcription Factors/metabolism
- Transcription Factors/genetics
- Adaptor Proteins, Signal Transducing/metabolism
- Adaptor Proteins, Signal Transducing/genetics
- Female
- Cell Line, Tumor
- Cell Proliferation
- RNA Precursors/metabolism
- RNA Precursors/genetics
- Male
- RNA Splicing
- Apoptosis
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Mice, Nude
- Gene Expression Regulation, Neoplastic
- DEAD-box RNA Helicases
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Affiliation(s)
- Lixia Li
- Cancer Hospital, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Dewei Liu
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, China
| | - Tingting Chen
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, China
| | - Chunhui Wei
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, China
| | - Youping Qiao
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, China
| | - Weiliang Liu
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, China
| | - Yanmei Liang
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, China
| | - Zhu Liang
- Department of Cardiothoracic Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Chunyuan Chen
- Department of Cardiothoracic Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Dongming Li
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, China
| | - Bin Wu
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, China
| | - Xuanna Zhao
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, China.
| | - Dan Huang
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, China.
| | - Dong Wu
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, China.
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Zhu X, Guan R, Zou Y, Li M, Chen J, Zhang J, Luo W. Cold-inducible RNA binding protein alleviates iron overload-induced neural ferroptosis under perinatal hypoxia insult. Cell Death Differ 2024; 31:524-539. [PMID: 38388728 PMCID: PMC11043449 DOI: 10.1038/s41418-024-01265-x] [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: 07/02/2023] [Revised: 01/30/2024] [Accepted: 02/01/2024] [Indexed: 02/24/2024] Open
Abstract
Cold-inducible RNA binding protein (CIRBP), a stress response protein, protects cells from mild hypothermia or hypoxia by stabilizing specific mRNAs and promoting their translation. Neurons subjected to hypobaric hypoxia insult trigger various cell death programs. One of these is ferroptosis, a novel non-apoptotic form of programmed cell death, which is characterized by excessive iron ion accumulation and lipid peroxidation. Here, we establish that CIRBP can regulate neuronal ferroptosis both in vivo and in vitro. We observe that hypoxia leads to neuronal death via intracellular ferrous iron overload and impaired antioxidant systems, accompanied by suppressed CIRBP expression. Genetic enrichment of CIRBP in hippocampal neurons CIRBPTg mice bred with Emx1-Cre mice attenuates hypoxia-induced cognitive deficits and neuronal degeneration. Mechanistically, CIRBP alleviates neuronal ferroptosis and intracellular ferrous ion accumulation by binding to the mitochondrial ferritin (FTMT) 3'UTR to stabilize mRNA and promote its translation. Our novel study shows the critical role of CIRBP in the progression of ferroptosis, and provides promising therapeutic target for hypoxia-induced neurological diseases.
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Affiliation(s)
- Xiaozheng Zhu
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Ruili Guan
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Yuankang Zou
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Ming Li
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Jingyuan Chen
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China.
| | - Jianbin Zhang
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China.
| | - Wenjing Luo
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China.
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3
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Lin TY, Jia JS, Luo WR, Lin XL, Xiao SJ, Yang J, Xia JW, Zhou C, Zhou ZH, Lin SJ, Li QW, Yang ZZ, Lei Y, Yang WQ, Shen HF, Huang SH, Wang SC, Chen LB, Yang YL, Xue SW, Li YL, Dai GQ, Zhou Y, Li YC, Wei F, Rong XX, Luo XJ, Zhao BX, Huang WH, Xiao D, Sun Y. ThermomiR-377-3p-induced suppression of Cirbp expression is required for effective elimination of cancer cells and cancer stem-like cells by hyperthermia. J Exp Clin Cancer Res 2024; 43:62. [PMID: 38419081 PMCID: PMC10903011 DOI: 10.1186/s13046-024-02983-3] [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: 02/09/2024] [Accepted: 02/12/2024] [Indexed: 03/02/2024] Open
Abstract
BACKGROUND In recent years, the development of adjunctive therapeutic hyperthermia for cancer therapy has received considerable attention. However, the mechanisms underlying hyperthermia resistance are still poorly understood. In this study, we investigated the roles of cold‑inducible RNA binding protein (Cirbp) in regulating hyperthermia resistance and underlying mechanisms in nasopharyngeal carcinoma (NPC). METHODS CCK-8 assay, colony formation assay, tumor sphere formation assay, qRT-PCR, Western blot were employed to examine the effects of hyperthermia (HT), HT + oridonin(Ori) or HT + radiotherapy (RT) on the proliferation and stemness of NPC cells. RNA sequencing was applied to gain differentially expressed genes upon hyperthermia. Gain-of-function and loss-of-function experiments were used to evaluate the effects of RNAi-mediated Cirbp silencing or Cirbp overexpression on the sensitivity or resistance of NPC cells and cancer stem-like cells to hyperthermia by CCK-8 assay, colony formation assay, tumorsphere formation assay and apoptosis assay, and in subcutaneous xenograft animal model. miRNA transient transfection and luciferase reporter assay were used to demonstrate that Cirbp is a direct target of miR-377-3p. The phosphorylation levels of key members in ATM-Chk2 and ATR-Chk1 pathways were detected by Western blot. RESULTS Our results firstly revealed that hyperthermia significantly attenuated the stemness of NPC cells, while combination treatment of hyperthermia and oridonin dramatically increased the killing effect on NPC cells and cancer stem cell (CSC)‑like population. Moreover, hyperthermia substantially improved the sensitivity of radiation‑resistant NPC cells and CSC‑like cells to radiotherapy. Hyperthermia noticeably suppressed Cirbp expression in NPC cells and xenograft tumor tissues. Furthermore, Cirbp inhibition remarkably boosted anti‑tumor‑killing activity of hyperthermia against NPC cells and CSC‑like cells, whereas ectopic expression of Cirbp compromised tumor‑killing effect of hyperthermia on these cells, indicating that Cirbp overexpression induces hyperthermia resistance. ThermomiR-377-3p improved the sensitivity of NPC cells and CSC‑like cells to hyperthermia in vitro by directly suppressing Cirbp expression. More importantly, our results displayed the significantly boosted sensitization of tumor xenografts to hyperthermia by Cirbp silencing in vivo, but ectopic expression of Cirbp almost completely counteracted hyperthermia-mediated tumor cell-killing effect against tumor xenografts in vivo. Mechanistically, Cirbp silencing-induced inhibition of DNA damage repair by inactivating ATM-Chk2 and ATR-Chk1 pathways, decrease in stemness and increase in cell death contributed to hyperthermic sensitization; conversely, Cirbp overexpression-induced promotion of DNA damage repair, increase in stemness and decrease in cell apoptosis contributed to hyperthermia resistance. CONCLUSION Taken together, these findings reveal a previously unrecognized role for Cirbp in positively regulating hyperthermia resistance and suggest that thermomiR-377-3p and its target gene Cirbp represent promising targets for therapeutic hyperthermia.
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Affiliation(s)
- Tao-Yan Lin
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jun-Shuang Jia
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
- Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Wei-Ren Luo
- Cancer Research Institute, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen Third People's Hospital, Shenzhen, 518112, China
| | - Xiao-Lin Lin
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510315, China
| | - Sheng-Jun Xiao
- Department of Pathology, The Second Affiliated Hospital of Guilin Medical University, Guilin, 541199, China
| | - Jie Yang
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
- Department of Imaging, Central Hospital of Shaoyang, Shaoyang, 422000, China
| | - Jia-Wei Xia
- The Third People's Hospital of Kunming (The Sixth Affiliated Hospital of Dali University), Kunming, 650041, China
| | - Chen Zhou
- Department of Pathology, The Second Affiliated Hospital of Guilin Medical University, Guilin, 541199, China
| | - Zhi-Hao Zhou
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Shu-Jun Lin
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Qi-Wen Li
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Zhi-Zhi Yang
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Ye Lei
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Wen-Qing Yang
- School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, 510515, China
| | - Hong-Fen Shen
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Shi-Hao Huang
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Sheng-Chun Wang
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
- Department of Pathology, School of Basic Medicine, Guangdong Medical University, Dongguan, 523808, China
| | - Lin-Bei Chen
- School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, 510515, China
| | - Yu-Lin Yang
- School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, 510515, China
| | - Shu-Wen Xue
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Yong-Long Li
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Guan-Qi Dai
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Ying Zhou
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Ying-Chun Li
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Fang Wei
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Xiao-Xiang Rong
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guang‑zhou, 510515, China
| | - Xiao-Jun Luo
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510315, China
| | - Bing-Xia Zhao
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China.
| | - Wen-Hua Huang
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Medical Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China.
- Guangdong Medical Innovation Platform for Translation of 3D Printing Application, The Third Affiliated Hospital of Southern Medical University, Southern Medical University, Guangzhou, 510000, China.
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Guangdong Medical University, Zhanjiang, 524001, China.
| | - Dong Xiao
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China.
- Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China.
- Guangzhou Southern Medical Laboratory Animal Sci.&Tech. Co.,Ltd, Guangzhou, 510515, China.
- National Demonstration Center for Experimental Education of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China.
- Department of Stomatology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China.
| | - Yan Sun
- Laboratory Animal Management Center, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China.
- Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China.
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4
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Otmani K, Rouas R, Berehab M, Lewalle P. The regulatory mechanisms of oncomiRs in cancer. Biomed Pharmacother 2024; 171:116165. [PMID: 38237348 DOI: 10.1016/j.biopha.2024.116165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 02/08/2024] Open
Abstract
Cancer development is a complex process that primarily results from the combination of genetic alterations and the dysregulation of major signalling pathways due to interference with the epigenetic machinery. As major epigenetic regulators, miRNAs are central players in the control of many key tumour development factors. These miRNAs have been classified as oncogenic miRNAs (oncomiRs) when they target tumour suppressor genes and tumour suppressor miRNAs (TS miRNAs) when they inhibit oncogene protein expression. Most of the mechanisms that modulate oncomiR expression are linked to transcriptional or posttranscriptional regulation. However, non-transcriptional processes, such as gene amplification, have been described as alternative processes that are responsible for increasing oncomiR expression. The current review summarises the different mechanisms controlling the upregulation of oncomiR expression in cancer cells and the tumour microenvironment (TME). Detailed knowledge of the mechanism underlying the regulation of oncomiR expression in cancer may pave the way for understanding the critical role of oncomiRs in cancer development and progression.
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Affiliation(s)
- Khalid Otmani
- Hematology Laboratory, Hematology Department, Hôpital Universitaire de Bruxelles (H.U.B.) Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium.
| | - Redouane Rouas
- Hematology Laboratory, Hematology Department, Hôpital Universitaire de Bruxelles (H.U.B.) Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Mimoune Berehab
- Hematology Laboratory, Hematology Department, Hôpital Universitaire de Bruxelles (H.U.B.) Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Philippe Lewalle
- Hematology Laboratory, Hematology Department, Hôpital Universitaire de Bruxelles (H.U.B.) Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium.
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Chai J, Yin S, Feng W, Zhang T, Ke C. The Role of Hypoxia-inducible Factor-1 in Bladder Cancer. Curr Mol Med 2024; 24:827-834. [PMID: 37475553 PMCID: PMC11327745 DOI: 10.2174/1566524023666230720163448] [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: 03/03/2023] [Revised: 06/10/2023] [Accepted: 06/19/2023] [Indexed: 07/22/2023]
Abstract
Bladder cancer (BC) is one of the most common malignant tumors worldwide and poses a significant hazard to human health. During the development of BC, hypoxia plays a crucial role. Hypoxia-inducible factor (HIF) is a key transcription factor for hypoxic adaptation, which regulates the transcription of various genes, including inflammation, angiogenesis, and glycolytic metabolism. Recent studies have shown the precise role of HIF in various biological behaviors of BC. More importantly, a new antitumor medication targeting HIF-2 has been used to treat renal cancer. However, therapies targeting HIF-1 in BC have not yet been developed. In this review, we discussed how HIF-1 is expressed and affects the growth, metastasis, and angiogenesis of BC. At the same time, we investigated several HIF-1 inhibitors that provide new perspectives for targeting HIF-1.
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Affiliation(s)
- Jiagui Chai
- Department of Urology, the Second Affiliated Hospital of Kunming Medical University, Kunming, 650106, China
| | - Sifan Yin
- Department of Urology, the Second Affiliated Hospital of Kunming Medical University, Kunming, 650106, China
| | - Wenbo Feng
- Department of Urology, the Second Affiliated Hospital of Kunming Medical University, Kunming, 650106, China
| | - Tao Zhang
- Department of Urology, the Second Affiliated Hospital of Kunming Medical University, Kunming, 650106, China
| | - Changxing Ke
- Department of Urology, the Second Affiliated Hospital of Kunming Medical University, Kunming, 650106, China
- Yunnan Institute of Urology, Kunming, 650106, China
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Zhou Q, Huang W, Xiong J, Guo B, Wang X, Guo J. CDCA8 promotes bladder cancer survival by stabilizing HIF1α expression under hypoxia. Cell Death Dis 2023; 14:658. [PMID: 37813876 PMCID: PMC10562466 DOI: 10.1038/s41419-023-06189-x] [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: 04/05/2023] [Revised: 09/19/2023] [Accepted: 09/28/2023] [Indexed: 10/11/2023]
Abstract
Hypoxia is an essential hallmark of solid tumors and HIF1α is a central regulator of tumor cell adaptation and survival in the hypoxic environment. In this study, we explored the biological functions of cell cycle division-related gene 8 (CDCA8) in bladder cancer (BCa) cells in the hypoxic settings. Specifically, we found that CDCA8 was significantly upregulated in BCa cell lines and clinical samples and its expression was positively correlated with advanced BCa stage, grade, and poor overall survival (OS). The expression of CDCA8 proteins was required for BCa cells to survive in the hypoxic condition. Mechanistically, CDCA8 stabilizes HIF1α by competing with PTEN for AKT binding, consequently leading to PTEN displacement and activation of the AKT/GSK3β signaling cascade that stimulates HIF1α protein stability. Significantly, HIF1α proteins bind to CDCA8 promoter for transcriptional activation, forming a positive-feedback loop to sustain BCa tumor cells under oxygen-deficient environment. Together, we defined CDCA8 as a key regulator for BCa cells to sense and prevail oxygen deprivation and as a novel BCa therapeutic target.
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Affiliation(s)
- Qiang Zhou
- Department of Urology, First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Wei Huang
- Department of Urology, First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jing Xiong
- Department of Urology, First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Biao Guo
- Department of Urology, First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xinghuan Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.
| | - Ju Guo
- Department of Urology, First Affiliated Hospital of Nanchang University, Nanchang, China.
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7
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Wang B, Ge S, Wang Z, Wang W, Wang Y, Leng H, Ma X. Analysis and experimental validation of fatty acid metabolism-related genes prostacyclin synthase (PTGIS) in endometrial cancer. Aging (Albany NY) 2023; 15:10322-10346. [PMID: 37796199 PMCID: PMC10599728 DOI: 10.18632/aging.205080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 09/09/2023] [Indexed: 10/06/2023]
Abstract
The deregulation of fatty acid metabolism plays a pivotal role in cancer. Our objective is to construct a prognostic model for patients with endometrial carcinoma (EC) based on genes related to fatty acid metabolism-related genes (FAMGs). RNA sequencing and clinical data for EC were obtained from The Cancer Genome Atlas (TCGA). Lasso-Penalized Cox regression was employed to derive the risk formula for the model, the score = esum(corresponding coefficient × each gene's expression). Gene set enrichment analysis (GSEA) was utilized to examine the enrichment of KEGG and GO pathways within this model. Correlation analysis of immune function was conducted using Single-sample GSEA (ssGSEA). The "ESTIMATE" package in R was utilized to evaluate the tumor microenvironment. The support vector machine recursive feature elimination (SVM-RFE) and randomforest maps were employed to identify key genes. The effects of PTGIS on the malignant biological behavior of EC were assessed through CCK-8 assay, transwell invasion assay, cell cycle analysis, apoptosis assay, and tumor xenografts in nude mice. A novel prognostic signature comprising 10 FAMGs (INMT, ACACB, ACOT4, ACOXL, CYP4F3, FAAH, GPX1, HPGDS, PON3, PTGIS) was developed. This risk score serves as an independent prognostic marker validated for EC. According to ssGSEA analysis, the low- and high-risk groups exhibited distinct immune enrichments. The key gene PTGIS was screened by SVM-RFE and randomforest method. Furthermore, we validated the expression of PTGIS through qRT-PCR. In vitro and in vivo experiments also confirmed the effect of PTGIS on the malignant biological behavior of EC.
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Affiliation(s)
- Bo Wang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 110000, Liaoning, People’s Republic of China
| | - Shuwen Ge
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 110000, Liaoning, People’s Republic of China
| | - Zihao Wang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 110000, Liaoning, People’s Republic of China
| | - Wantong Wang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 110000, Liaoning, People’s Republic of China
| | - Yuting Wang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 110000, Liaoning, People’s Republic of China
| | - Hongrui Leng
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 110000, Liaoning, People’s Republic of China
| | - Xiaoxin Ma
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 110000, Liaoning, People’s Republic of China
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8
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Ding H, Wang KY, Chen SY, Guo KW, Qiu WH. Validating the role of PTGIS gene in colorectal cancer by bioinformatics analysis and in vitro experiments. Sci Rep 2023; 13:16496. [PMID: 37779109 PMCID: PMC10543560 DOI: 10.1038/s41598-023-43289-2] [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: 04/23/2023] [Accepted: 09/21/2023] [Indexed: 10/03/2023] Open
Abstract
Prostaglandin I2 synthase (PTGIS) is a member of the cytochrome P450 family. Studies have revealed that differential expression of the PTGIS gene is closely related to the pathological and physiological processes of many diseases, including breast cancer, oral squamous cell carcinoma, and head and neck cancer. However, the mechanism of action of the PTGIS gene in colorectal cancer is not fully understood. This study explored the role of PTGIS in colorectal cancer through comprehensive bioinformatics analysis and in vitro experiments, and found that the expression of PTGIS gene in colorectal cancer tissue was significantly lower than that in normal colorectal tissue (P < 0.05), and high expression of PTGIS gene was associated with poor prognosis in patients (P < 0.05). The KEGG results showed that PTGIS-related genes were mainly enriched in metabolic pathways, arachidonic acid metabolism, steroid biosynthesis, and cancer pathways. The expression of PTGIS may be related to immune infiltration. Cell experiments showed that PTGIS was expressed at a lower level in cancer. Overexpression of PTGIS inhibited apoptosis and promoted proliferation, invasion, and migration ability of SW480 colorectal cancer cells. Analysis of the PTGIS gene in this study provides a theoretical basis for further exploring the pathogenesis of colorectal cancer and finding more accurate new targets for early screening and treatment of the cancer.
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Affiliation(s)
- Hui Ding
- Medical College of Wuhan Science and Technology University, Wuhan, 430065, People's Republic of China
| | - Kai-Yun Wang
- Medical College of Wuhan Science and Technology University, Wuhan, 430065, People's Republic of China
| | - Si-Yang Chen
- Medical College of Wuhan Science and Technology University, Wuhan, 430065, People's Republic of China
| | - Kai-Wen Guo
- Medical College of Wuhan Science and Technology University, Wuhan, 430065, People's Republic of China.
| | - Wen-Hong Qiu
- Department of Immunology, School of Medicine, Jianghan University, Wuhan, 430056, People's Republic of China.
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Yang M, Liu X, Tang X, Sun W, Ji Z. LC-MS based urine untargeted metabolomic analyses to identify and subdivide urothelial cancer. Front Oncol 2023; 13:1160965. [PMID: 37256175 PMCID: PMC10226587 DOI: 10.3389/fonc.2023.1160965] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 04/25/2023] [Indexed: 06/01/2023] Open
Abstract
Introduction Urine metabolomics has been a promising technique in the liquid biopsy of urothelial cancer (UC). The comparison of upper tract urothelial cancer (UTUC), lower tract urothelial cancer (BCa), and healthy controls (HCs) need to be performed to find related biomarkers. Methods In our investigation, urine samples from 35 UTUCs, 44 BCas, and 53 gender- and age-matched HCs were analyzed using liquid chromatography-high resolution mass spectrometry (LC-HRMS). In different groups, the differential metabolites and the disturbed metabolism pathways were explored. Transcriptomics and urine metabolomics are combined to identify the probably disturbed gene in BCa. Results With an area under the curve (AUC) of 0.815, the panel consisting of prostaglandin I2, 5-methyldeoxycytidine, 2,6-dimethylheptanoyl carnitine, and deoxyinosine was able to discriminate UC from HCs. With an AUC of 0.845, the validation group also demonstrated strong predictive ability. UTUC and BCa without hematuria could be distinguished using the panel of 5'-methylthioadenosine, L-beta-aspartyl-L-serine, dehydroepiandrosterone sulfate, and N'-formylkynurenine (AUC=0.858). The metabolite panel comprising aspartyl-methionine, 7-methylinosine, and alpha-CEHC glucuronide could discriminate UTUC from BCa with hematuria with an AUC of 0.83. Fatty acid biosynthesis, purine metabolism, tryptophan metabolism, pentose and glucuronate interconversions, and arachidonic acid metabolism were dysregulated when comparing UC with HCs. PTGIS and BCHE, the genes related to the metabolism of prostaglandin I2 and myristic acid respectively, were significantly associated with the survival of BCa. Discussion Not only could LC-HRMS urine metabolomic investigations distinguish UC from HCs, but they could also identify UTUC from BCa. Additionally, urine metabolomics combined with transcriptomics can find out the potential aberrant genes in the metabolism.
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Affiliation(s)
- Ming Yang
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Peking Union Medical College, Beijing, China
| | - Xiaoyan Liu
- Core Facility of Instrument, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences/School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Xiaoyue Tang
- Core Facility of Instrument, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences/School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Wei Sun
- Core Facility of Instrument, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences/School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Zhigang Ji
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Science, Peking Union Medical College, Beijing, China
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Huang L, Sun F, Liu Z, Jin W, Zhang Y, Chen J, Zhong C, Liang W, Peng H. Probing the Potential of Defense Response-Associated Genes for Predicting the Progression, Prognosis, and Immune Microenvironment of Osteosarcoma. Cancers (Basel) 2023; 15:cancers15082405. [PMID: 37190333 DOI: 10.3390/cancers15082405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/18/2023] [Accepted: 04/19/2023] [Indexed: 05/17/2023] Open
Abstract
BACKGROUND The defense response is a type of self-protective response of the body that protects it from damage by pathogenic factors. Although these reactions make important contributions to the occurrence and development of tumors, the role they play in osteosarcoma (OS), particularly in the immune microenvironment, remains unpredictable. METHODS This study included the clinical information and transcriptomic data of 84 osteosarcoma samples and the microarray data of 12 mesenchymal stem cell samples and 84 osteosarcoma samples. We obtained 129 differentially expressed genes related to the defense response (DRGs) by taking the intersection of differentially expressed genes with genes involved in the defense response pathway, and prognostic genes were screened using univariate Cox regression. Least absolute shrinkage and selection operator (LASSO) penalized Cox regression and multivariate Cox regression were then used to establish a DRG prognostic signature (DGPS) via the stepwise method. DGPS performance was examined using independent prognostic analysis, survival curves, and receiver operating characteristic (ROC) curves. In addition, the molecular and immune mechanisms of adverse prognosis in high-risk populations identified by DGPS were elucidated. The results were well verified by experiments. RESULT BNIP3, PTGIS, and ZYX were identified as the most important DRGs for OS progression (hazard ratios of 2.044, 1.485, and 0.189, respectively). DGPS demonstrated outstanding performance in the prediction of OS prognosis (area under the curve (AUC) values of 0.842 and 0.787 in the training and test sets, respectively, adj-p < 0.05 in the survival curve). DGPS also performed better than a recent clinical prognostic approach with an AUC value of only 0.674 [metastasis], which was certified in the subsequent experimental results. These three genes regulate several key biological processes, including immune receptor activity and T cell activation, and they also reduce the infiltration of some immune cells, such as B cells, CD8+ T cells, and macrophages. Encouragingly, we found that DGPS was associated with sensitivity to chemotherapeutic drugs including JNK Inhibitor VIII, TGX221, MP470, and SB52334. Finally, we verified the effect of BNIP3 on apoptosis, proliferation, and migration of osteosarcoma cells through experiments. CONCLUSIONS This study elucidated the role and mechanism of BNIP3, PTGIS, and ZYX in OS progression and was well verified by the experimental results, enabling reliable prognostic means and treatment strategies to be proposed for OS patients.
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Affiliation(s)
- Liangkun Huang
- Department of Orthopedics Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Fei Sun
- Department of Orthopedics Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Zilin Liu
- Department of Orthopedics Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Wenyi Jin
- Department of Biomedical Sciences, College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
| | - Yubiao Zhang
- Department of Orthopedics Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Junwen Chen
- Department of Orthopedics Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Changheng Zhong
- Department of Orthopedics Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Wanting Liang
- Department of Clinical Medicine, Xianyue Hospital of Xiamen Medical College, Xiamen 310058, China
| | - Hao Peng
- Department of Orthopedics Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
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Wang Z, Wang T, Wu G, Zhu L, Zhang J. Clinical Significance and Tumor Microenvironment Characterization of a Novel Immune-Related Gene Signature in Bladder Cancer. J Clin Med 2023; 12:jcm12051892. [PMID: 36902678 PMCID: PMC10003605 DOI: 10.3390/jcm12051892] [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: 12/18/2022] [Revised: 02/20/2023] [Accepted: 02/23/2023] [Indexed: 03/04/2023] Open
Abstract
Cancer immunotherapy plays a crucial role in bladder cancer (BC) progression. Increasing evidence has elucidated the clinicopathologic significance of the tumor microenvironment (TME) in predicting outcomes and therapeutic efficacy. This study sought to establish a comprehensive analysis of the immune-gene signature combined with TME to assist in BC prognosis. We selected sixteen immune-related genes (IRGs) after a weighted gene co-expression network and survival analysis. Enrichment analysis revealed that these IRGs were actively involved in Mitophagy and Renin secretion pathways. After multivariable COX analysis, the IRGPI comprising NCAM1, CNTN1, PTGIS, ADRB3, and ANLN was established to predict the overall survival of BC, which was validated in both TCGA and GSE13507 cohorts. In addition, a TME gene signature was developed for molecular and prognosis subtyping with unsupervised clustering, followed by a panoramic landscape characterization of BC. In summary, the IRGPI model developed in our study provided a valuable tool with an improved prognosis for BC.
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Affiliation(s)
- Zhaohui Wang
- Department of Gynecology and Obstetrics, Xiangya Hospital, Central South University, Changsha 410008, China
- Advanced Biological Screening Facility, BioQuant, Heidelberg University, 69120 Heidelberg, Germany
- Department of Surgery, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Tao Wang
- Department of Urology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, China
| | - Gangfeng Wu
- Department of Urology, Shaoxing People’s Hospital, Shaoxing 312000, China
| | - Lei Zhu
- Department of Surgery, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
- Junior Clinical Cooperation Unit Translational Surgical Oncology (A430), German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
- Correspondence: (L.Z.); (J.Z.)
| | - Jian Zhang
- Department of Urology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, China
- Correspondence: (L.Z.); (J.Z.)
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12
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Lai L, Wang G, Xu L, Fu Y. CEBPB promotes gastrointestinal motility dysfunction after severe acute pancreatitis via the MALAT1/CIRBP/ERK axis. Mol Immunol 2023; 156:1-9. [PMID: 36842228 DOI: 10.1016/j.molimm.2023.02.001] [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: 10/31/2022] [Revised: 01/17/2023] [Accepted: 02/05/2023] [Indexed: 02/27/2023]
Abstract
Severe acute pancreatitis (SAP) is a kind of reversible inflammatory process of the exocrine pancreas with gastrointestinal motility dysfunction involved. Studies have highlighted the role of long noncoding RNA metastasis associated lung adenocarcinoma transcript 1 (MALAT1) in AP. However, the mechanism underlying its role in the gastrointestinal motility dysfunction remains undefined. Hence, we explored the regulatory role of MALAT1 in gastrointestinal motility dysfunction following SAP. Then, the expression of CCAAT/enhancer-binding protein beta (CEBPB), MALAT1 and cold-inducible RNA binding protein (CIRBP) was detected in plasma of SAP patients and pancreatic and intestinal tissues of SAP mouse models with their correlation analyzed also. Additionally, the effect of MALAT1 on the pancreatic and intestinal injury, expression of inflammatory factors and the ERK pathway-related genes as well as gastrointestinal motility dysfunction was assessed using ectopic expression and depletion experiments. CEBPB, MALAT1 and CIRBP were highly expressed in plasma of SAP patients and pancreatic and intestinal tissues of SAP mice. Further analysis showed that knockdown of MALAT1 could alleviate pancreatic and intestinal injury, reduce inflammation, and prevent gastrointestinal motility dysfunction in SAP mice. The transcription factor CEBPB could bind to the promoter region of MALAT1, thus activating the transcription of MALAT1. MALAT1 interacted with CIRBP and inhibited the degradation of CIRBP, leading to activated extracellular signal-regulated kinase (ERK) pathway and the resultant gastrointestinal motility dysfunction. In conclusion, CEBPB exhibits a promoting activity towards gastrointestinal motility dysfunction in SAP by pumping up MALAT1 expression and activating the CIRBP-dependent ERK pathway.
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Affiliation(s)
- Lixia Lai
- Department of Gastroenterology, Pingxiang People's Hospital, Pingxiang 337055, PR China.
| | - Guiliang Wang
- Department of Gastroenterology, Pingxiang People's Hospital, Pingxiang 337055, PR China
| | - Linfang Xu
- Department of Gastroenterology, Pingxiang People's Hospital, Pingxiang 337055, PR China
| | - Yunhui Fu
- Department of Gastroenterology, Pingxiang People's Hospital, Pingxiang 337055, PR China
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13
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PTGIS May Be a Predictive Marker for Ovarian Cancer by Regulating Fatty Acid Metabolism. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2023; 2023:2397728. [PMID: 36785673 PMCID: PMC9918844 DOI: 10.1155/2023/2397728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/18/2022] [Accepted: 11/24/2022] [Indexed: 02/05/2023]
Abstract
Background Ovarian cancer tends to metastasize to the omentum, which is an organ mainly composed of adipose tissue. Many studies have found that fatty acid metabolism is related to the occurrence and metastasis of cancers. Therefore, it is possible that fatty acid metabolism-related genes (FAMRG) affect the prognosis of ovarian cancer patients. Methods First, profiles of ovarian cancer and normal ovarian tissue transcriptomes were acquired from The Cancer Genome Atlas (TCGA) and the Genotype-Tissue Expression (GTEx) databases. A LASSO regression predictive model was developed via the "glmnet" R package. The nomogram was created via the "regplot." Gene Set Variation Analysis (GSVA), Kyoto Encyclopedia of Genes and Genomes (KEGG), and Gene Ontology (GO) analyses were conducted to determine the FAMRGs' roles. The percentage of immunocyte infiltration was calculated via CIBERSORT. Using "pRRophetic," the sensitivity of eight regularly used medications and immunotherapy was anticipated. Results 125 genes were determined as different expression genes (DEGs). Based on RXRA, ECI2, PTGIS, and ACACB, a prognostic model is created and the risk score is calculated. Analyses of univariate and multivariate regressions revealed that the risk score was a distinct prognostic factor (univariate: HR: 2.855, 95% CI: 1.756-4.739, P < 0.001; multivariate: HR: 2.943, 95% CI: 1.800-4.812, P < 0.001). The nomogram demonstrated that it properly predicted the 1-year survival rate. The expression of memory B molecular units, follicular helper T molecular units, regulatory T molecular units, and M1 macrophages differed remarkably between the groups at high and low risk (P < 0.05). Adipocytokine signaling pathways, cancer pathways, and degradation of valine, leucine, and isoleucine vary between high- and low-risk populations. The findings of the GO enrichment revealed that the extracellular matrix and cellular structure were the two most enriched pathways. PTGIS, which is an important gene in fatty acid metabolism, was identified as the hub gene. This result was verified in ovarian cancer and ovarian tissues. The connection between the gene and survival was statistically remarkable (P = 0.015). The pRRophetic algorithm revealed that the low-risk group was more adaptable to cisplatin, doxorubicin, 5-fluorouracil, and etoposide (P < 0.001). Conclusion PTGIS may be an indicator of prognosis and a possible therapeutic target for the therapy of ovarian cancer patients. The fatty acid metabolism of immune cells may be controlled, which has an indirect effect on cancer cell growth.
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ETS-1 facilitates Th1 cell-mediated mucosal inflammation in inflammatory bowel diseases through upregulating CIRBP. J Autoimmun 2022; 132:102872. [DOI: 10.1016/j.jaut.2022.102872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/11/2022] [Accepted: 07/12/2022] [Indexed: 11/24/2022]
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15
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Cai D, Zhou Z, Wei G, Wu P, Kong G. Construction and verification of a novel hypoxia-related lncRNA signature related with survival outcomes and immune microenvironment of bladder urothelial carcinoma by weighted gene co-expression network analysis. Front Genet 2022; 13:952369. [PMID: 36118856 PMCID: PMC9471150 DOI: 10.3389/fgene.2022.952369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 07/26/2022] [Indexed: 11/19/2022] Open
Abstract
Background: Bladder urothelial carcinoma (BLCA) is a common malignant tumor with the greatest recurrence rate of any solid tumor. Hypoxia is crucial in the growth and immune escape of malignant tumors. To predict clinical outcomes and immunological microenvironment of patients with BLCA, a hypoxia-related long non-coding RNA (HRlncRNA) signature was established. Methods: The Cancer Genome Atlas (TCGA) provided us with the differentially expressed profile of HRlncRNAs as well as clinical data from patients with BLCA, and we used weighted gene co-expression network analysis (WGCNA) to identify gene modules associated with malignancies. Results: Finally, Cox analysis revealed that HRlncRNAs, which comprised 13 lncRNAs, were implicated in the predictive signature. The training, testing, and overall cohorts of BLCA patients were divided into the low-risk group and high-risk group based on the median of the risk score. The Kaplan–Meier curves revealed that BLCA patients with a high-risk score had a poor prognosis, and the difference between subgroups was statistically significant. The receiver operating characteristic curves revealed that this signature outperformed other strategies in terms of predicting ability. Multivariate analysis revealed that the risk score was an independent prognostic index for overall survival (HR = 1.411; 1.259–1.582; p < 0.001). Then, a nomogram with clinicopathological features and risk score was established. This signature could effectively enhance the capacity to predict survival, according to the calibration plots, stratification, and clinical analysis. The majority of Kyoto Encyclopedia of Genes and Genomes (KEGG) were WNT, MAPK, and ERBB signaling pathways. Two groups had different immune cell subtypes, immune checkpoints, immunotherapy response, and anti-tumor drug sensitivity, which might result in differing survival outcomes. We then validated the differential expression of signature-related genes between tumor and normal tissues using TCGA paired data. Conclusion: This prognostic signature based on 13 HRlncRNAs may become a novel and potential prognostic biomarker, providing more accurate clinical decision-making and effective treatment for BLCA patients.
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Affiliation(s)
- Dawei Cai
- Department of Urology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Zhongbao Zhou
- Department of Urology, Beijing TianTan Hospital, Capital Medical University, Beijing, China
| | - Guangzhu Wei
- Department of Urology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Peishan Wu
- Department of Urology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Guangqi Kong
- Department of Urology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
- *Correspondence: Guangqi Kong,
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Wang Y, Shao W, Feng Y, Tang J, Wang Q, Zhang D, Huang H, Jiang M. Prognostic value and potential biological functions of ferroptosis‑related gene signature in bladder cancer. Oncol Lett 2022; 24:301. [PMID: 35949618 PMCID: PMC9353228 DOI: 10.3892/ol.2022.13421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 06/14/2022] [Indexed: 11/29/2022] Open
Abstract
Bladder cancer (BC), as a genitourinary system tumor, is a highly prevalent tumor type. Ferroptosis is an iron-dependent oxidative cell death mechanism that is becoming increasingly recognized as a promising avenue for cancer therapy. However, further determination of the prospective prognostic value of ferroptosis for BC and investigation of the underlying mechanisms is required. The mRNA expression profiles and associated clinical data were downloaded from public databases such as The Cancer Genome Atlas, Gene Expression Omnibus and the IMvigor210 database. To construct a predictive formula, the least absolute shrinkage and selection operator Cox regression algorithm was used. In addition, a prognostic multigene signature was constructed using previously selected ferroptosis-related genes (FRGs). A total of 28 FRGs were differentially expressed between tumor and normal samples with |log2 fold change| >1 and adjusted P<0.05. A prognostic model was then established and it was validated in the GEO cohort using six genes: Glutamate-cysteine ligase modifier subunit, crystallin α-B, transferrin receptor, zinc finger E-box binding homeobox 1, squalene epoxidase and glucose-6-phosphate dehydrogenase (G6PD). Numerous important pathways involved in the development of the immune system and cancer were indicated to be significantly different between the two risk groups. In addition, it was discovered that G6PD expression subgroups that were associated with immunotherapy response in patients with BC had similar prognostic features to risk score subgroups. In the present study, a gene signature with a prognostic value for ferroptosis in BC was successfully developed and the potential value of G6PD was identified for future research.
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Affiliation(s)
- Yutong Wang
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Wenchuan Shao
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Yeqi Feng
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Junzhe Tang
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Qinchun Wang
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Dong Zhang
- State Key Lab of Reproductive Medicine, Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Huaxing Huang
- The First School of Clinical Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Minjun Jiang
- Department of Urology, Suzhou Ninth People's Hospital, Soochow University, Suzhou, Jiangsu 215299, P.R. China
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Peng H, Weng L, Lei S, Hou S, Yang S, Li M, Zhao D. Hypoxia-hindered methylation of PTGIS in endometrial stromal cells accelerates endometriosis progression by inducing CD16 - NK-cell differentiation. Exp Mol Med 2022; 54:890-905. [PMID: 35781537 PMCID: PMC9356144 DOI: 10.1038/s12276-022-00793-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 03/23/2022] [Accepted: 04/11/2022] [Indexed: 11/15/2022] Open
Abstract
Prostacyclin (PGI2) plays key roles in shaping the immune microenvironment and modulating vasodilation, whereas its contribution to endometriosis (EMs) remains largely unclear. Our study suggested that prostacyclin synthase (PTGIS)-dependent PGI2 signaling was significantly activated in EMs, which was involved in the hypoxic microenvironment of ectopic lesions and deficient methylation status of the PTGIS promoter. Notably, in vitro assays, hypoxia promoted PTGIS expression through DNA methyltransferase 1 (DNMT1)-mediated DNA methylation deficiency in endometrial stromal cells (ESCs); PTGIS overexpression enhanced the adhesive ability of ESCs and led to elevated PGI2 production, and PGI2 triggered CD16− (encoded by FCGR3, Fc fragment of IgG receptor IIIa) natural killer (NK)-cell differentiation through PGI2 receptor (IP, PTGIR) in an ESC/NK-cell coculture system. Our rodent model experiment suggested that treatment with the PGI2 analog iloprost and adoptive transfer of fcgr3 knockout (fcgr3−/−) NK cells aggravated EMs progression and that genetic ablation of ptgis (ptgis−/−) in ectopic lesions and treatment with the PTGIR antagonist RO1138452 partially rescued this outcome. Thus, our findings identified the contribution of PGI2 to EMs progression via enhancement of the adhesive ability of ESCs and inhibition of the activity of NK cells. We hypothesized that PGI2 is a target for EMs intervention and provide a rationale for studying pharmacological PTGIR inhibition and PTGIS genetic depletion therapies as therapeutic strategies for EMs. Inhibiting the activity of a critical enzyme found overexpressed in endometriosis lesions could lead to novel therapeutics. Endometriosis affects around 10 per cent of women of reproductive age globally, yet the condition is poorly understood. Endometriosis lesions are known to be in a hypoxic, or low oxygen, state. Zhao Dong at Tongji University in Shanghai, China, and co-workers used human tissue samples and mouse models to determine the roles of a metabolite called prostacyclin (PGI2) and its catalytic enzyme (prostacyclin synthase, PTGIS) in endometriosis. PTGIS levels were significantly elevated in hypoxic endometrial cells, triggering the overproduction of PGI2. This PTGIS/PGI2 increase enhanced the adhesiveness of the cells, promoting survival of developing lesions. PGI2 overproduction also triggered abnormal differentiation of a specific group of immune cells called natural killer cells, disrupting the body’s immune response.
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Affiliation(s)
- Haiyan Peng
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Lichun Weng
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Shating Lei
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Shuhui Hou
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Shaoliang Yang
- Laboratory for Reproductive Immunology, Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, 200011, China.,Key Laboratory of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, 200032, China
| | - Mingqing Li
- Laboratory for Reproductive Immunology, Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, 200011, China.,Key Laboratory of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, 200032, China
| | - Dong Zhao
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, 200092, China. .,Department of Obstetrics and Gynecology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200011, China.
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Kim YM, Hong S. Controversial roles of cold‑inducible RNA‑binding protein in human cancer (Review). Int J Oncol 2021; 59:91. [PMID: 34558638 DOI: 10.3892/ijo.2021.5271] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 09/06/2021] [Indexed: 11/05/2022] Open
Abstract
Cold‑inducible RNA‑binding protein (CIRBP) is a cold‑shock protein comprised of an RNA‑binding motif that is induced by several stressors, such as cold shock, UV radiation, nutrient deprivation, reactive oxygen species and hypoxia. CIRBP can modulate post‑transcriptional regulation of target mRNA, which is required to control DNA repair, circadian rhythms, cell growth, telomere integrity and cardiac physiology. In addition, the crucial function of CIRBP in various human diseases, including cancers and inflammatory disease, has been reported. Although CIRBP is primarily considered to be an oncogene, it may also serve a role in tumor suppression. In the present study, the controversial roles of CIRBP in various human cancers is summarized, with a focus on the interconnectivity between CIRBP and its target mRNAs involved in tumorigenesis. CIRBP may represent an important prognostic marker and therapeutic target for cancer therapy.
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Affiliation(s)
- Young-Mi Kim
- Department of Health Sciences and Technology, Gachon Advanced Institute for Health Sciences and Technology, Gachon University, Incheon 21999, Republic of Korea
| | - Suntaek Hong
- Department of Health Sciences and Technology, Gachon Advanced Institute for Health Sciences and Technology, Gachon University, Incheon 21999, Republic of Korea
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Dong B, Liang J, Li D, Song W, Zhao S, Ma Y, Song J, Zhu M, Yang T. Tumor Expression Profile Analysis Developed and Validated a Prognostic Model Based on Immune-Related Genes in Bladder Cancer. Front Genet 2021; 12:696912. [PMID: 34512722 PMCID: PMC8429908 DOI: 10.3389/fgene.2021.696912] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 07/28/2021] [Indexed: 12/24/2022] Open
Abstract
Background: Bladder cancer (BLCA) ranks 10th in incidence among malignant tumors and 6th in incidence among malignant tumors in males. With the application of immune therapy, the overall survival (OS) rate of BLCA patients has greatly improved, but the 5-year survival rate of BLCA patients is still low. Furthermore, not every BLCA patient benefits from immunotherapy, and there are a limited number of biomarkers for predicting the immunotherapy response. Therefore, novel biomarkers for predicting the immunotherapy response and prognosis of BLCA are urgently needed. Methods: The RNA sequencing (RNA-seq) data, clinical data and gene annotation files for The Cancer Genome Atlas (TCGA) BLCA cohort were extracted from the University of California, Santa Cruz (UCSC) Xena Browser. The BLCA datasets GSE31684 and GSE32894 from the Gene Expression Omnibus (GEO) database were extracted for external validation. Immune-related genes were extracted from InnateDB. Significant differentially expressed genes (DEGs) were identified using the R package “limma,” and Gene Ontology (GO) analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis for the DEGs were performed using R package “clusterProfiler.” Least absolute shrinkage and selection operator (LASSO) regression analysis were used to construct the signature model. The infiltration level of each immune cell type was estimated using the single-sample gene set enrichment analysis (ssGSEA) algorithm. The performance of the model was evaluated with receiver operating characteristic (ROC) curves and calibration curves. Results: In total, 1,040 immune-related DEGs were identified, and eight signature genes were selected to construct a model using LASSO regression analysis. The risk score of BLCA patients based on the signature model was negatively correlated with OS and the immunotherapy response. The ROC curve for OS revealed that the model had good accuracy. The calibration curve showed good agreement between the predictions and actual observations. Conclusions: Herein, we constructed an immune-related eight-gene signature that could be a potential biomarker to predict the immunotherapy response and prognosis of BLCA patients.
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Affiliation(s)
- Bingqi Dong
- Department of Urology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Jiaming Liang
- The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, Guangzhou, China
| | - Ding Li
- Department of Pharmacy, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Wenping Song
- Department of Pharmacy, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Shiming Zhao
- Department of Urology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Yongkang Ma
- Department of Urology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Jinbo Song
- Department of Urology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Mingkai Zhu
- Department of Urology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Tiejun Yang
- Department of Urology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
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Sun H, Hu W, Yan Y, Zhang Z, Chen Y, Yao X, Teng L, Wang X, Chai D, Zheng J, Wang G. Using PAMPs and DAMPs as adjuvants in cancer vaccines. Hum Vaccin Immunother 2021; 17:5546-5557. [PMID: 34520322 DOI: 10.1080/21645515.2021.1964316] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Immunotherapy for cancer has attracted considerable attention. As one of the immunotherapeutics, tumor vaccines exert great potential for cancer immunotherapy. The most important components in tumor vaccines are antigens and adjuvants, which determine the therapeutic safety and efficacy, respectively. After decades of research, many types of adjuvants have been developed. Although these adjuvants can induce strong and long-lasting immune responses in tumor immunity, they also cause more severe toxic side effects and are therefore not suitable for use in humans. With the development of innate immunity research, pathogen-associated molecular patterns (PAMPs) and damage-associated molecular patterns (DAMPs) are receiving more attention in vaccine design. However, whether they have the potential to become new adjuvants remains to be elucidated. The purpose of this review is to provide newideas for the research and development of new adjuvants by discussing the mechanisms and related functions of PAMPs and DAMPs.
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Affiliation(s)
- Huanyou Sun
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, P.R. China
| | - Wenwen Hu
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, P.R. China
| | - Yinan Yan
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, P.R. China
| | - Zichun Zhang
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, P.R. China
| | - Yuxin Chen
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, P.R. China
| | - Xuefan Yao
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, P.R. China
| | - Ling Teng
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, P.R. China
| | - Xinyuan Wang
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, P.R. China
| | - Dafei Chai
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, P.R. China.,Center Of Clinical Oncology, Affiliated Hospital Of Xuzhou Medical University, Xuzhou, Jiangsu, P.R. China.,Jiangsu Center For The Collaboration And Innovation Of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, P.R. China
| | - Junnian Zheng
- Center Of Clinical Oncology, Affiliated Hospital Of Xuzhou Medical University, Xuzhou, Jiangsu, P.R. China.,Jiangsu Center For The Collaboration And Innovation Of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, P.R. China
| | - Gang Wang
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, P.R. China.,Center Of Clinical Oncology, Affiliated Hospital Of Xuzhou Medical University, Xuzhou, Jiangsu, P.R. China.,Jiangsu Center For The Collaboration And Innovation Of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu, P.R. China
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21
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Chen X, Xie H, Wang X, Zheng Z, Jin S. CIRBP Knockdown Attenuates Tumourigenesis and Improves the Chemosensitivity of Pancreatic Cancer via the Downregulation of DYRK1B. Front Cell Dev Biol 2021; 9:667551. [PMID: 34490236 PMCID: PMC8417580 DOI: 10.3389/fcell.2021.667551] [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: 02/13/2021] [Accepted: 08/02/2021] [Indexed: 12/09/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal malignancies worldwide with very limited treatment options. Cold-inducible RNA binding protein (CIRBP) plays promoting roles in several types of cancers, but its function remains unclear in PDAC. Here, we found that the expression of CIRBP was upregulated in PDAC tumor tissues and was significantly associated with poor prognosis. Knockdown of CIRBP in PANC-1 and SW1990 cells inhibited proliferation, migration and invasion in vitro and suppressed tumor growth in vivo. Moreover, CIRBP knockdown enhanced the antitumour effects of gemcitabine treatment in PANC-1 and SW1990 cells, whereas CIRBP overexpression exerted the opposite effects. Mechanistically, CIRBP promoted PDAC malignancy and chemoresistance via upregulation of dual-specificity tyrosine-Y-phosphorylation regulated kinase 1B (DYRK1B). Indeed, knockdown of CIRBP sensitized pancreatic tumors to gemcitabine treatment by diminishing DYRK1B expression and increasing the ratio of ERK/p38 activity. Our findings suggest that CIRBP overexpression facilitates PDAC progression and gemcitabine resistance by upregulating DYRK1B expression and inhibiting the ERK/p38 signaling pathway, highlighting CIRBP as a potential new therapeutic target for PDAC.
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Affiliation(s)
- Xiang Chen
- Department of Anesthesia, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hongyu Xie
- Department of Anesthesia, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xin Wang
- Department of Anesthesia, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhinan Zheng
- Department of Anesthesia, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Sanqing Jin
- Department of Anesthesia, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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22
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Liao Y, Feng J, Sun W, Wu C, Li J, Jing T, Liang Y, Qian Y, Liu W, Wang H. CIRP promotes the progression of non-small cell lung cancer through activation of Wnt/β-catenin signaling via CTNNB1. J Exp Clin Cancer Res 2021; 40:275. [PMID: 34465343 PMCID: PMC8406911 DOI: 10.1186/s13046-021-02080-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 08/21/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Cold-inducible RNA binding protein (CIRP) is a newly discovered proto-oncogene. In this study, we investigated the role of CIRP in the progression of non-small cell lung cancer (NSCLC) using patient tissue samples, cultured cell lines and animal lung cancer models. METHODS Tissue arrays, IHC and HE staining, immunoblotting, and qRT-PCR were used to detect the indicated gene expression; plasmid and siRNA transfections as well as viral infection were used to manipulate gene expression; cell proliferation assay, cell cycle analysis, cell migration and invasion analysis, soft agar colony formation assay, tail intravenous injection and subcutaneous inoculation of animal models were performed to study the role of CIRP in NSCLC cells; Gene expression microarray was used to select the underlying pathways; and RNA immunoprecipitation assay, biotin pull-down assay, immunopurification assay, mRNA decay analyses and luciferase reporter assay were performed to elucidate the mechanisms. The log-rank (Mantel-Cox) test, independent sample T-test, nonparametric Mann-Whitney test, Spearman rank test and two-tailed independent sample T-test were used accordingly in our study. RESULTS Our data showed that CIRP was highly expressed in NSCLC tissue, and its level was negatively correlated with the prognosis of NSCLC patients. By manipulating CIRP expression in A549, H460, H1299, and H1650 cell lines, we demonstrated that CIRP overexpression promoted the transition of G1/G0 phase to S phase and the formation of an enhanced malignant phenotype of NSCLC, reflected by increased proliferation, enhanced invasion/metastasis and greater tumorigenic capabilities both in vitro and in vivo. Transcriptome sequencing further demonstrated that CIRP acted on the cell cycle, DNA replication and Wnt signaling pathway to exert its pro-oncogenic action. Mechanistically, CIRP directly bound to the 3'- and 5'-UTRs of CTNNB1 mRNA, leading to enhanced stability and translation of CTNNB1 mRNA and promoting IRES-mediated protein synthesis, respectively. Eventually, the increased CTNNB1 protein levels mediated excessive activation of the Wnt/β-catenin signaling pathway and its downstream targets C-myc, COX-2, CCND1, MMP7, VEGFA and CD44. CONCLUSION Our results support CIRP as a candidate oncogene in NSCLC and a potential target for NSCLC therapy.
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Affiliation(s)
- Yi Liao
- The Central Laboratory, Shenzhen Second People's Hospital/First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, Guangdong, 518035, P. R. China
- Department of Thoracic Surgery, Southwest Hospital, Army Medical University, Chongqing, 400038, P. R. China
| | - Jianguo Feng
- Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, Province, Luzhou, 646099, Sichuan, China
| | - Weichao Sun
- The Central Laboratory, Shenzhen Second People's Hospital/First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, Guangdong, 518035, P. R. China
| | - Chao Wu
- Department of Thoracic Surgery, Southwest Hospital, Army Medical University, Chongqing, 400038, P. R. China
| | - Jingyao Li
- The Central Laboratory, Shenzhen Second People's Hospital/First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, Guangdong, 518035, P. R. China
| | - Tao Jing
- Department of Cardiology, Southwest Hospital, Army Medical University, Chongqing, 400038, P. R. China
| | - Yuteng Liang
- Department of Thoracic Surgery, Shenzhen Second People's Hospital/First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, Guangdong, 518035, P. R. China
| | - Yonghui Qian
- Department of Thoracic Surgery, Shenzhen Second People's Hospital/First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, Guangdong, 518035, P. R. China
| | - Wenlan Liu
- The Central Laboratory, Shenzhen Second People's Hospital/First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, Guangdong, 518035, P. R. China.
- Department of Thoracic Surgery, Shenzhen Second People's Hospital/First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, Guangdong, 518035, P. R. China.
| | - Haidong Wang
- Department of Thoracic Surgery, Southwest Hospital, Army Medical University, Chongqing, 400038, P. R. China.
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23
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Xiong K, Wang G, Peng T, Zhou F, Chen S, Liu W, Ju L, Xiao Y, Qian K, Wang X. The cholesterol esterification inhibitor avasimibe suppresses tumour proliferation and metastasis via the E2F-1 signalling pathway in prostate cancer. Cancer Cell Int 2021; 21:461. [PMID: 34461908 PMCID: PMC8407011 DOI: 10.1186/s12935-021-02175-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 08/24/2021] [Indexed: 02/08/2023] Open
Abstract
Background New effective drugs for prostate cancer (PCa) treatment are urgently needed. Avasimibe was recently identified as a promising drug for anticancer therapies. The main purpose of this study was to explore the effects and the underlying mechanisms of avasimibe in prostate cancer. Methods In this study, MTT and clonogenic survival assays were performed to detect cell proliferation after avasimibe treatment. The effect of avasimibe on cell migration was measured by wound healing and transwell migration assays. Cell cycle distribution and apoptosis were detected by flow cytometry. Immunofluorescence staining and western blot analysis were used to detect the expression of cell cycle-related proteins and epithelial-mesenchymal transition (EMT)-related proteins. In vivo, the antitumour effects of avasimibe were evaluated using a xenograft model and pulmonary metastasis model. Results The study found that avasimibe suppresses tumour growth and triggers G1 phase arrest. Moreover, the expression of the cell cycle-related proteins CDK2/4/6, Cyclin D1 and Cyclin A1 + A2 was significantly increased and p21 expression was decreased after avasimibe treatment. The migration of PCa cells was attenuated after treatment with avasimibe, followed by the downregulation of the expression of the EMT-related proteins N-cadherin, β-catenin, vimentin, Snail and MMP9 and upregulation of E-cadherin expression. Moreover, E2F-1 was elevated after treatment with avasimibe. After knockdown of E2F-1 expression, the inhibition of cell proliferation and migration caused by avasimibe was significantly recovered. The results of the xenograft model showed that avasimibe suppressed tumour growth in vivo. Immunofluorescence staining revealed lower levels of Ki67 and higher levels of E2F-1 in tumour tissues of the avasimibe group than those of the control group. A pulmonary metastasis model also confirmed the inhibition of PCa metastasis by avasimibe. The number of lung metastatic foci in the avasimibe group was significantly decreased compared with that in the control group. Conclusions Our results suggest that avasimibe can suppress tumour proliferation and metastasis via the E2F-1 signalling pathway. These findings demonstrate the potential of avasimibe as a new effective drug for PCa treatment. Supplementary Information The online version contains supplementary material available at 10.1186/s12935-021-02175-5.
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Affiliation(s)
- Kangping Xiong
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Gang Wang
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetic Resource Preservation Center of Hubei Province, Wuhan, China.,Human Genetic Resource Preservation Center of Wuhan University, Wuhan, China.,Laboratory of Precision Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China
| | - Tianchen Peng
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Fenfang Zhou
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Siming Chen
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Wei Liu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Lingao Ju
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetic Resource Preservation Center of Hubei Province, Wuhan, China.,Human Genetic Resource Preservation Center of Wuhan University, Wuhan, China.,Laboratory of Precision Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China
| | - Yu Xiao
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetic Resource Preservation Center of Hubei Province, Wuhan, China.,Human Genetic Resource Preservation Center of Wuhan University, Wuhan, China.,Laboratory of Precision Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China
| | - Kaiyu Qian
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China. .,Human Genetic Resource Preservation Center of Hubei Province, Wuhan, China. .,Human Genetic Resource Preservation Center of Wuhan University, Wuhan, China. .,Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China.
| | - Xinghuan Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China. .,Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China. .,Medical Research Institute, Wuhan University, Wuhan, China.
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24
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Duan X, Cheng X, Yin X, Ke Z, Song J. Systematic analysis of the function and prognostic value of RNA binding protein in head and neck squamous cell carcinoma. Eur Arch Otorhinolaryngol 2021; 279:1535-1547. [PMID: 34218307 DOI: 10.1007/s00405-021-06929-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 06/01/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Dysregulation of RNA binding proteins (RBPs) plays an important role in controlling processes in cancer development. However, the function of RBPs has not been thoroughly and systematically documented in head and neck cancer. We aim to explore the role of RPB in the pathogenesis of HNSC. METHODS We obtained HNSC gene expression data and corresponding clinical information from The Cancer Genome Atlas (TCGA) and the GEO databases, and identified aberrantly expressed RBPs between tumors and normal tissues. Meanwhile, we performed a series of bioinformatics to explore the function and prognostic value of these RBPs. RESULTS A total of 249 abnormally expressed RBPs were identified, including 101 downregulated RBPs and 148 upregulated RBPs. Using least absolute shrinkage and selection operator (LASSO) and univariate Cox regression analysis, the 15 RPBs were identified as hub genes. With the 15 RPBS, the prognostic prediction model was constructed. Further analysis showed that the high-risk score of the patients expressed a better survival outcome. The prediction model was validated in another HNSC dataset, and similar findings were observed. CONCLUSIONS Our results provide novel insights into the pathogenesis of HNSC. The fifteen RBP gene signature exhibited the predictive value of moderate HNSC prognosis, and have potential application value in clinical decision-making and individualized treatment.
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Affiliation(s)
- Xiaofeng Duan
- Department of Oral and Maxillofacial Surgery, Guizhou Provincial People's Hospital, Guiyang, 550002, Guizhou, China
| | - Xianlin Cheng
- Department of Oral and Maxillofacial Surgery, Guizhou Provincial People's Hospital, Guiyang, 550002, Guizhou, China
| | - Xinhai Yin
- Department of Oral and Maxillofacial Surgery, Guizhou Provincial People's Hospital, Guiyang, 550002, Guizhou, China
| | - Zhao Ke
- Department of Oral and Maxillofacial Surgery, Guizhou Provincial People's Hospital, Guiyang, 550002, Guizhou, China
| | - Jukun Song
- Department of Oral and Maxillofacial Surgery, Guizhou Provincial People's Hospital, Guiyang, 550002, Guizhou, China.
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Lin KH, Wilson GM, Blanco R, Steinert ND, Zhu WG, Coon JJ, Hornberger TA. A deep analysis of the proteomic and phosphoproteomic alterations that occur in skeletal muscle after the onset of immobilization. J Physiol 2021; 599:2887-2906. [PMID: 33873245 PMCID: PMC8353513 DOI: 10.1113/jp281071] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 04/06/2021] [Indexed: 02/04/2023] Open
Abstract
KEY POINTS A decrease in protein synthesis plays a major role in the loss of muscle mass that occurs in response to immobilization. In mice, immobilization leads to a rapid (within 6 h) and progressive decrease in the rate of protein synthesis and this effect is mediated by a decrease in translational efficiency. Deep proteomic and phosphoproteomic analyses of mouse skeletal muscles revealed that the rapid immobilization-induced decrease in protein synthesis cannot be explained by changes in the abundance or phosphorylation state of proteins that have been implicated in the regulation of translation. ABSTRACT The disuse of skeletal muscle, such as that which occurs during immobilization, can lead to the rapid loss of muscle mass, and a decrease in the rate of protein synthesis plays a major role in this process. Indeed, current dogma contends that the decrease in protein synthesis is mediated by changes in the activity of protein kinases (e.g. mTOR); however, the validity of this model has not been established. Therefore, to address this, we first subjected mice to 6, 24 or 72 h of unilateral immobilization and then used the SUnSET technique to measure changes in the relative rate of protein synthesis. The result of our initial experiments revealed that immobilization leads to a rapid (within 6 h) and progressive decrease in the rate of protein synthesis and that this effect is mediated by a decrease in translational efficiency. We then performed a deep mass spectrometry-based analysis to determine whether this effect could be explained by changes in the expression and/or phosphorylation state of proteins that regulate translation. From this analysis, we were able to quantify 4320 proteins and 15,020 unique phosphorylation sites, and surprisingly, the outcomes revealed that the rapid immobilization-induced decrease in protein synthesis could not be explained by changes in either the abundance, or phosphorylation state, of proteins. The results of our work not only challenge the current dogma in the field, but also provide an expansive resource of information for future studies that are aimed at defining how disuse leads to loss of muscle mass.
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Affiliation(s)
- Kuan-Hung Lin
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI, USA
- School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Gary M Wilson
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI, USA
- National Center for Quantitative Biology of Complex Systems, Madison, WI, USA
| | - Rocky Blanco
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI, USA
- School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Nathaniel D Steinert
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI, USA
- School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Wenyuan G Zhu
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI, USA
- School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Joshua J Coon
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI, USA
- National Center for Quantitative Biology of Complex Systems, Madison, WI, USA
- Morgridge Institute for Research, Madison, WI, USA
- Department of Biomolecular Chemistry, University of Wisconsin-Madison, Madison, WI, USA
| | - Troy A Hornberger
- Department of Comparative Biosciences, University of Wisconsin-Madison, Madison, WI, USA
- School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
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Sun X, Zhou Z, Zhang Y, Wang J, Zhao X, Jin L, Zhai T, Liu X, Zhang J, Mei W, Zhang B, Luo M, Yao X, Ye L. Identification and validation of a hypoxia-related prognostic and immune microenvironment signature in bladder cancer. Cancer Cell Int 2021; 21:251. [PMID: 33962639 PMCID: PMC8103571 DOI: 10.1186/s12935-021-01954-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 04/27/2021] [Indexed: 02/07/2023] Open
Abstract
Background Bladder cancer is the leading causes of cancer-associated mortality and seriously affects population health. Hypoxia plays a key role in tumor development and immune escape, which contributes to malignant behaviors. Methods In this study, we analyzed the RNA-seq and clinical information of bladder cancer patients from The Cancer Genome Atlas (TCGA) database. To investigate the hypoxia-related prognostic and immune microenvironment in bladder cancer, we constructed a hypoxia-related risk model for overall survival (OS). The RNA-seq and clinical data of bladder cancer patients from the Gene Expression Omnibus (GEO) database were used as validation sets. Results The hypoxia-related risk signature was significantly correlated with clinical outcomes and could independently predict OS outcomes. Furthermore, the hypoxia-related risk signature could effectively reflected the levels of immune cell type fractions and the expression of critical immune checkpoint genes were higher in the high-risk group compared to the low-risk group. We also validated the expression levels of the prognostic genes in bladder cancer and paracancerous tissue samples through qRT-PCR analysis. Conclusion We established a 7 hypoxia-related gene (HRG) signature that can be used as an independent clinical predictor and provided a potential mechanism in bladder cancer immunotherapy. Supplementary Information The online version contains supplementary material available at 10.1186/s12935-021-01954-4.
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Affiliation(s)
- Xianchao Sun
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Zhen Zhou
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Ying Zhang
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230032, Anhui, China
| | - Jinyou Wang
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230032, Anhui, China
| | - Xiaofeng Zhao
- Department of Urology, Karamay Central Hospital, Karamay, 834000, Xinjiang, China
| | - Liang Jin
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Tingshuai Zhai
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Xiang Liu
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.,Department of Urology, Shanghai Putuo District People's Hospital, Tongji University School of Medicine, Shanghai, 200060, China
| | - Jiaxin Zhang
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Wangli Mei
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Bihui Zhang
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Ming Luo
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.
| | - Xudong Yao
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.
| | - Lin Ye
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.
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27
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Shang C, Li Y, Wu Z, Han Q, Zhu Y, He T, Guo H. The Prognostic Value of DNA Methylation, Post-Translational Modifications and Correlated with Immune Infiltrates in Gynecologic Cancers. PHARMACOGENOMICS & PERSONALIZED MEDICINE 2021; 14:39-53. [PMID: 33488112 PMCID: PMC7814251 DOI: 10.2147/pgpm.s293399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 12/26/2020] [Indexed: 11/23/2022]
Abstract
Background To depict the prognostic landscape of gynecological cancers from the perspective of DNA methylation, alternative splicing (AS) and polyadenylation (APA) events and investigate their correlation with immune infiltrates. Methods Methylation and RNA-seq data and corresponding clinical information regarding gynecologic cancers were used to explore the relationships between changes in DNA methylation, AS and APA events and gynecologic cancer prognosis. QRT-PCR and multiple bioinformatics tools were employed to construct a gene interaction network and explore immune infiltrates. Results Only the mRNA levels of CIRBP and INPP5K were simultaneously significantly decreased in gynecologic cancers and negatively associated with overall survival, which verified by qrt-PCR. We also identified that CIRBP or INPP5K DNA methylation, AS and APA events are prognostic indicators of gynecologic cancers. The activation of T cells might be the main signaling pathway by which these genes modulate cancer progression. CIRBP/INPP5K expression is positively associated with immune infiltration and is a major risk factor of survival, especially among uterine corpus endometrial carcinoma (UCEC) patients. Conclusion According to these findings, the DNA methylation, AS and APA events of CIRBP and INPP5K may serve as important prognostic biomarkers and targets in gynecological cancers by modulating T cell infiltration.
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Affiliation(s)
- Chunliang Shang
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, People's Republic of China
| | - Yuan Li
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, People's Republic of China
| | - Zhangxin Wu
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, People's Republic of China
| | - Qin Han
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, People's Republic of China
| | - Yuan Zhu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Tianhui He
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, People's Republic of China
| | - Hongyan Guo
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, People's Republic of China.,National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), Beijing 100191, People's Republic of China
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An interactive network of alternative splicing events with prognostic value in geriatric lung adenocarcinoma via the regulation of splicing factors. Biosci Rep 2020; 40:226556. [PMID: 33000861 PMCID: PMC7569206 DOI: 10.1042/bsr20202338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 09/24/2020] [Accepted: 09/29/2020] [Indexed: 12/23/2022] Open
Abstract
Alternative splicing (AS), an essential process for the maturation of mRNAs, is involved in tumorigenesis and tumor progression, including angiogenesis, apoptosis, and metastasis. AS changes can be frequently observed in different tumors, especially in geriatric lung adenocarcinoma (GLAD). Previous studies have reported an association between AS events and tumorigenesis but have lacked a systematic analysis of its underlying mechanisms. In the present study, we obtained splicing event information from SpliceSeq and clinical information regarding GLAD from The Cancer Genome Atlas. Survival-associated AS events were selected to construct eight prognostic index (PI) models. We also constructed a correlation network between splicing factors (SFs) and survival-related AS events to identify a potential molecular mechanism involved in regulating AS-related events in GLAD. Our study findings confirm that AS has a strong prognostic value for GLAD and sheds light on the clinical significance of targeting SFs in the treatment of GLAD.
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29
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Jiang T, Lu X, Yang F, Wang M, Yang H, Xing N. LMTK3 promotes tumorigenesis in bladder cancer via the ERK/MAPK pathway. FEBS Open Bio 2020; 10:2107-2121. [PMID: 32865871 PMCID: PMC7530379 DOI: 10.1002/2211-5463.12964] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/20/2020] [Accepted: 07/30/2020] [Indexed: 12/21/2022] Open
Abstract
Lemur tyrosine kinase 3 (LMTK3) is a key member of the serine–threonine tyrosine kinase family. It plays an important role in breast cancer tumorigenesis and progression. However, its biological role in bladder cancer remains elusive. In this study, we demonstrated that LMTK3 was overexpressed in bladder cancer and was positively correlated with bladder cancer malignancy. High LMTK3 expression predicted poor overall survival. Knockdown of LMTK3 in bladder cancer cells triggered cell‐cycle arrest at G2/M phase, suppressed cell growth, and induced cell apoptosis in bladder cancer cells. Furthermore, Transwell assays revealed that reduction of LMTK3 decreased cell migration by regulating the epithelial‐to‐mesenchymal transition pathway. Conversely, LKTM3 overexpression was shown to promote proliferation and migration of bladder cancer cells. We assessed phosphorylation of MEK and ERK1/2 in bladder cancer cells depleted of LMTK3 and demonstrated a reduced phosphorylation status compared with the control group. Using an MAPK signaling‐specific inhibitor, U0126, we could rescue the promotion of proliferation and viability in LMTK3‐overexpressing cells. In conclusion, we extend the status of LMTK3 as an oncogene in bladder cancer and provide evidence for its function via the activation of the ERK/MAPK pathway. Thus, targeting LMTK3 may hold potential as a diagnostic and prognostic biomarker and as a possible future treatment for bladder cancer.
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Affiliation(s)
- Tao Jiang
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.,Department of Urology, Affiliated Dalian Friendship Hospital of Dalian Medical University, China
| | - Xinxing Lu
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Feiya Yang
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Mingshuai Wang
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Hua Yang
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Nianzeng Xing
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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30
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Cheng S, Peng T, Zhu X, Zhou F, Wang G, Ju L, Xiao Y, Liu X, Wang X. BORA regulates cell proliferation and migration in bladder cancer. Cancer Cell Int 2020; 20:290. [PMID: 32655322 PMCID: PMC7339433 DOI: 10.1186/s12935-020-01392-8] [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: 04/27/2020] [Accepted: 06/30/2020] [Indexed: 11/13/2022] Open
Abstract
Background Bladder cancer is having a gradually increasing incidence in China. Except for the traditional chemotherapy drugs, there are no emerging new drugs for almost 30 years in bladder cancer. New potential therapeutic targets and biomarkers are urgently needed. Methods BORA is the activator of kinase Aurora A and plays an important role in cell cycle progression. To investigate the function of BORA in BCa, we established BORA knockdown and overexpression cell models for in vitro studies, xenograft and pulmonary metastasis mouse models for in vivo studies. Results Our results indicated that BORA was upregulated in human bladder cancer (BCa) compared to the normal bladder and paracancerous tissues at transcriptional and translational levels. We found that BORA was positively related to BCa cell proliferation. Furthermore, BORA knockdown induced cell cycle arrest in G2/M phase while BORA overexpression decreased the proportion of cells in G2/M, associated with PLK1–CDC25C–CDK1 alteration. Interestingly, we observed that knockdown of BORA inhibited BCa cell migration and invasion, accompanied with alterations of epithelial–mesenchymal transition (EMT) pathway related proteins. In vivo studies confirmed the inhibition effect of BORA knockdown on BCa cell growth and migration. Conclusions Our study indicates that BORA regulates BCa cell cycle and growth, meanwhile influences cell motility by EMT, and could be a novel biomarker and potential therapeutic target in BCa.
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Affiliation(s)
- Songtao Cheng
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Department of Pathology, Lombardi Comprehensive Cancer Center, Georgetown University Medical School, Washington, DC USA.,Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Wuhan, China
| | - Tianchen Peng
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Wuhan, China
| | - Xiaolu Zhu
- Department of Ophthalmology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Fenfang Zhou
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Wuhan, China
| | - Gang Wang
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Hubei Province, Wuhan, China
| | - Lingao Ju
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Hubei Province, Wuhan, China
| | - Yu Xiao
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Wuhan, China.,Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Hubei Province, Wuhan, China
| | - Xuefeng Liu
- Department of Pathology, Lombardi Comprehensive Cancer Center, Georgetown University Medical School, Washington, DC USA
| | - Xinghuan Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
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31
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Xiao X, Zhang W, Hua D, Zhang L, Meng W, Huang J, Zhang L. Cold-inducible RNA-binding protein (CIRBP) promotes porcine reproductive and respiratory syndrome virus (PRRSV)-induced inflammatory response. Int Immunopharmacol 2020; 86:106728. [PMID: 32593159 DOI: 10.1016/j.intimp.2020.106728] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 06/15/2020] [Accepted: 06/19/2020] [Indexed: 02/07/2023]
Abstract
Porcine reproductive and respiratory syndrome virus (PRRSV) infection causes severe systemic inflammation. Based on transcriptome sequencing data, a new cold-inducible RNA-binding protein (CIRBP) was identified, and its upregulated expression was detected in PRRSV-infected porcine alveolar macrophages (PAMs). However, the immunoregulatoryeffect of CIRBP in PRRSV infection remains unclear. In this study, we found that CIRBP, as an RNA-binging protein, migrates to the cytoplasm from the nucleus and exists in cytoplasmic stress granules under PRRSV infection. In addition, as a new pro-inflammatory factor, the overexpression of CIRBP promotes the expression of inflammatory cytokines and oxidative stress as showing the production of iNOS and ROS in PRRSV-infected cells, which contributes to the inflammatory response via the NF-κB pathway. Our findings suggested that CIRBP is involved in the regulation of PRRSV-induced inflammatory response.
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Affiliation(s)
- Xiao Xiao
- School of Life Sciences, Tianjin University, Tianjin, China; Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures, Tianjin University, Tianjin, China
| | - Wentao Zhang
- School of Life Sciences, Tianjin University, Tianjin, China; Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures, Tianjin University, Tianjin, China
| | - Deping Hua
- School of Life Sciences, Tianjin University, Tianjin, China; Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures, Tianjin University, Tianjin, China
| | - Lilin Zhang
- School of Life Sciences, Tianjin University, Tianjin, China; Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures, Tianjin University, Tianjin, China
| | - Wei Meng
- School of Life Sciences, Tianjin University, Tianjin, China; Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures, Tianjin University, Tianjin, China
| | - Jinhai Huang
- School of Life Sciences, Tianjin University, Tianjin, China; Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures, Tianjin University, Tianjin, China.
| | - Lei Zhang
- School of Life Sciences, Tianjin University, Tianjin, China; Tianjin Key Laboratory of Function and Application of Biological Macromolecular Structures, Tianjin University, Tianjin, China.
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32
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Abstract
Our goal was to find new diagnostic and prognostic biomarkers in bladder cancer (BCa), and to predict molecular mechanisms and processes involved in BCa development and progression. Notably, the data collection is an inevitable step and time-consuming work. Furthermore, identification of the complementary results and considerable literature retrieval were requested. Here, we provide detailed information of the used datasets, the study design, and on data mining. We analyzed differentially expressed genes (DEGs) in the different datasets and the most important hub genes were retrieved. We report on the meta-data information of the population, such as gender, race, tumor stage, and the expression levels of the hub genes. We include comprehensive information about the gene ontology (GO) enrichment analyses and the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses. We also retrieved information about the up- and down-regulation of genes. All in all, the presented datasets can be used to evaluate potential biomarkers and to predict the performance of different preclinical biomarkers in BCa.
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33
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Zhang C, Berndt-Paetz M, Neuhaus J. Identification of Key Biomarkers in Bladder Cancer: Evidence from a Bioinformatics Analysis. Diagnostics (Basel) 2020; 10:E66. [PMID: 31991631 PMCID: PMC7168923 DOI: 10.3390/diagnostics10020066] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 01/15/2020] [Accepted: 01/20/2020] [Indexed: 02/06/2023] Open
Abstract
Bladder cancer (BCa) is one of the most common malignancies and has a relatively poor outcome worldwide. However, the molecular mechanisms and processes of BCa development and progression remain poorly understood. Therefore, the present study aimed to identify candidate genes in the carcinogenesis and progression of BCa. Five GEO datasets and TCGA-BLCA datasets were analyzed by statistical software R, FUNRICH, Cytoscape, and online instruments to identify differentially expressed genes (DEGs), to construct protein‒protein interaction networks (PPIs) and perform functional enrichment analysis and survival analyses. In total, we found 418 DEGs. We found 14 hub genes, and gene ontology (GO) analysis revealed DEG enrichment in networks and pathways related to cell cycle and proliferation, but also in cell movement, receptor signaling, and viral carcinogenesis. Compared with noncancerous tissues, TPM1, CRYAB, and CASQ2 were significantly downregulated in BCa, and the other hub genes were significant upregulated. Furthermore, MAD2L1 and CASQ2 potentially play a pivotal role in lymph nodal metastasis. CRYAB and CASQ2 were both significantly correlated with overall survival (OS) and disease-free survival (DFS). The present study highlights an up to now unrecognized possible role of CASQ2 in cancer (BCa). Furthermore, CRYAB has never been described in BCa, but our study suggests that it may also be a candidate biomarker in BCa.
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Affiliation(s)
| | | | - Jochen Neuhaus
- Department of Urology, University of Leipzig, 04103 Leipzig, Germany; (C.Z.); (M.B.-P.)
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34
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Xiong Y, Yuan L, Xiong J, Xu H, Luo Y, Wang G, Ju L, Xiao Y, Wang X. An outcome model for human bladder cancer: A comprehensive study based on weighted gene co-expression network analysis. J Cell Mol Med 2019; 24:2342-2355. [PMID: 31883309 PMCID: PMC7011142 DOI: 10.1111/jcmm.14918] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 11/22/2019] [Accepted: 11/29/2019] [Indexed: 01/01/2023] Open
Abstract
The precision evaluation of prognosis is crucial for clinical treatment decision of bladder cancer (BCa). Therefore, establishing an effective prognostic model for BCa has significant clinical implications. We performed WGCNA and DEG screening to initially identify the candidate genes. The candidate genes were applied to construct a LASSO Cox regression analysis model. The effectiveness and accuracy of the prognostic model were tested by internal/external validation and pan‐cancer validation and time‐dependent ROC. Additionally, a nomogram based on the parameter selected from univariate and multivariate cox regression analysis was constructed. Eight genes were eventually screened out as progression‐related differentially expressed candidates in BCa. LASSO Cox regression analysis identified 3 genes to build up the outcome model in E‐MTAB‐4321 and the outcome model had good performance in predicting patient progress free survival of BCa patients in discovery and test set. Subsequently, another three datasets also have a good predictive value for BCa patients' OS and DFS. Time‐dependent ROC indicated an ideal predictive accuracy of the outcome model. Meanwhile, the nomogram showed a good performance and clinical utility. In addition, the prognostic model also exhibits good performance in pan‐cancer patients. Our outcome model was the first prognosis model for human bladder cancer progression prediction via integrative bioinformatics analysis, which may aid in clinical decision‐making.
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Affiliation(s)
- Yaoyi Xiong
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Lushun Yuan
- Division of Nephrology, Department of Internal Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Jing Xiong
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Department of Urology, Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing, China
| | - Huimin Xu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yongwen Luo
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Gang Wang
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Hubei Province, Wuhan, China
| | - Lingao Ju
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Hubei Province, Wuhan, China
| | - Yu Xiao
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Hubei Province, Wuhan, China.,Laboratory of Precision Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xinghuan Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Medical Research Institute, Wuhan University, Wuhan, China
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35
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Wang Y, Chen L, Ju L, Qian K, Liu X, Wang X, Xiao Y. Novel Biomarkers Associated With Progression and Prognosis of Bladder Cancer Identified by Co-expression Analysis. Front Oncol 2019; 9:1030. [PMID: 31681575 PMCID: PMC6799077 DOI: 10.3389/fonc.2019.01030] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 09/23/2019] [Indexed: 01/22/2023] Open
Abstract
Our study's goal was to screen novel biomarkers that could accurately predict the progression and prognosis of bladder cancer (BC). Firstly, we used the Gene Expression Omnibus (GEO) dataset GSE37815 to screen differentially expressed genes (DEGs). Secondly, we used the DEGs to construct a co-expression network by weighted gene co-expression network analysis (WGCNA) in GSE71576. We then screened the brown module, which was significantly correlated with the histologic grade (r = 0.85, p = 1e-12) of BC. We conducted functional annotation on all genes of the brown module and found that the genes of the brown module were mainly significantly enriched in "cell cycle" correlation pathways. Next, we screened out two real hub genes (ANLN, HMMR) by combining WGCNA, protein-protein interaction (PPI) network and survival analysis. Finally, we combined the GEO datasets (GSE13507, GSE37815, GSE31684, GSE71576). Oncomine, Human Protein Atlas (HPA), and The Cancer Genome Atlas (TCGA) dataset to confirm the predict value of the real hub genes for BC progression and prognosis. A gene-set enrichment analysis (GSEA) revealed that the real hub genes were mainly enriched in "bladder cancer" and "cell cycle" pathways. A survival analysis showed that they were of great significance in predicting the prognosis of BC. In summary, our study screened and confirmed that two biomarkers could accurately predict the progression and prognosis of BC, which is of great significance for both stratification therapy and the mechanism study of BC.
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Affiliation(s)
- Yejinpeng Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Liang Chen
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Lingao Ju
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Hubei Province, Wuhan, China.,Human Genetics Resource Preservation Center of Wuhan University, Wuhan, China
| | - Kaiyu Qian
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Hubei Province, Wuhan, China.,Human Genetics Resource Preservation Center of Wuhan University, Wuhan, China
| | - Xuefeng Liu
- Department of Pathology, Lombardi Comprehensive Cancer Center, Georgetown University Medical School, Washington, DC, United States
| | - Xinghuan Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Laboratory of Urology, Medical Research Institute, Wuhan University, Wuhan, China
| | - Yu Xiao
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China.,Human Genetics Resource Preservation Center of Hubei Province, Wuhan, China.,Human Genetics Resource Preservation Center of Wuhan University, Wuhan, China.,Laboratory of Precision Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
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36
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Lin TY, Chen Y, Jia JS, Zhou C, Lian M, Wen YT, Li XY, Chen HW, Lin XL, Zhang XL, Xiao SJ, Sun Y, Xiao D. Loss of Cirbp expression is correlated with the malignant progression and poor prognosis in nasopharyngeal carcinoma. Cancer Manag Res 2019; 11:6959-6969. [PMID: 31413636 PMCID: PMC6662521 DOI: 10.2147/cmar.s211389] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Accepted: 06/18/2019] [Indexed: 12/25/2022] Open
Abstract
Purpose: The correlation of cold-inducible RNA-binding protein (Cirbp) expression with clinicopathological features including patient prognosis in nasopharyngeal carcinoma (NPC) was investigated. Methods: The expression of Cirbp in NPC cell lines and tissue specimens was examined by qRT-PCR or immunohistochemistry (IHC). Results: Immunohistochemistry (IHC) results showed that high Cirbp expression was detected in 61 of 61 non-cancerous nasopharyngeal squamous epithelial biopsies, whereas the significantly reduced expression of Cirbp was observed in NPC specimens. In addition, IHC assay for Cirbp protein illustrated that the cells of 177 NPC samples and nasopharyngeal squamous epithlial cells displayed strong signals in nuclei and faint signals in cytoplasm, whereas Cirbp protein is mainly detected in the cell’s cytoplasm in many other cancers. More importantly, TNM classification displayed that the low expression of Cirbp was more frequently observed in T3-T4, N2-N3, M1 and III-IV NPC biopsies, and undifferentiated carcinoma (UDC) than T1-T2, N0-N1, M0 and I-II tumors, and differentiated nonkeratinizing carcinoma (DNKC), suggesting that Cirbp loss is a key molecular event in advanced cases of NPC. Kaplan–Meier survival analysis indicated that NPC patients showing lower Cirbp expression had a significantly shorter overall survival time than those with high Cirbp expression. Multivariate analysis suggested that the level of Cirbp expression was an independent prognostic indicator for NPC survival. Finally, we revealed a significant positive association between Cirbp expression and E-cadherin, and a notable negative correlation between Cirbp expression and Ki67 labeling index in NPC biopsies. Conclusion: Collectively, these findings demonstrate that loss of Cirbp expression is correlated with malignant progression and poor prognosis in NPC.
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Affiliation(s)
- Tao-Yan Lin
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou 510515, People's Republic of China
| | - Yan Chen
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou 510515, People's Republic of China
| | - Jun-Shuang Jia
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou 510515, People's Republic of China
| | - Chen Zhou
- Department of Pathology, The Second Affiliated Hospital, Guilin Medical University, Guilin 541199, People's Republic of China
| | - Mei Lian
- Institute of Comparative Medicine and Laboratory Animal Center, Southern Medical University, Guangzhou 510515, People's Republic of China
| | - Yue-Ting Wen
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou 510515, People's Republic of China
| | - Xiao-Yan Li
- Institute of Comparative Medicine and Laboratory Animal Center, Southern Medical University, Guangzhou 510515, People's Republic of China
| | - Heng-Wei Chen
- Institute of Comparative Medicine and Laboratory Animal Center, Southern Medical University, Guangzhou 510515, People's Republic of China
| | - Xiao-Lin Lin
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou 510515, People's Republic of China
| | - Xiao-Ling Zhang
- Department of Physiology, Faculty of Basic Medical Sciences, Guilin Medical University, Guilin 541004, People's Republic of China
| | - Sheng-Jun Xiao
- Department of Pathology, The Second Affiliated Hospital, Guilin Medical University, Guilin 541199, People's Republic of China
| | - Yan Sun
- Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, People's Republic of China
| | - Dong Xiao
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou 510515, People's Republic of China.,Institute of Comparative Medicine and Laboratory Animal Center, Southern Medical University, Guangzhou 510515, People's Republic of China
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Yang Y, Wang F, Huang H, Zhang Y, Xie H, Men T. lncRNA SLCO4A1-AS1 promotes growth and invasion of bladder cancer through sponging miR-335-5p to upregulate OCT4. Onco Targets Ther 2019; 12:1351-1358. [PMID: 30863101 PMCID: PMC6389014 DOI: 10.2147/ott.s191740] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Background Bladder cancer (BC) is among the most frequently occurring cancer types in the urinary system. In recent years, the importance of lncRNAs in BC has been acknowledged. SLCO4A1-AS1 is an oncogene in colorectal cancer. However, the role of SLCO4A1-AS1 in BC remains unknown. Materials and methods The expression levels of SLCO4A1-AS1 in BC tissues were analyzed by qRT-PCR. The effects of SLCO4A1-AS1 knockdown on proliferation were determined by CCK8 assay. Transwell assay was used to evaluate the role of SLCO4A1-AS1 on migration and invasion. Furthermore, xenograft assay was utilized to test the effect of SLCO4A1-AS1 on BC growth in vivo. Results SLCO4A1-AS1 expression was more upregulated in BC tissues than in adjacent normal tissues. Moreover, SLCO4A1-AS1 level was positively correlated with the advanced stage and metastasis in BC. The upregulation of SLCO4A1-AS1 indicates poor prognosis in BC patients. The knockdown of SLCO4A1-AS1 downregulated the proliferation, migration, and invasion of EJ and T24 cells in vitro. In addition, the loss of SLCO4A1-AS1 prevented BC growth in vivo. Mechanistic investigation showed that SLCO4A1-AS1 was the sponge for miR-335-5p, and miR-335-5p modulated OCT4 expression. Conclusion High SLCO4A1-AS1 expression level was associated with the progression of BC, and SLCO4A1-AS1 promoted the malignant phenotypes of BC cells through the miR-335-5p/OCT4 axis.
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Affiliation(s)
- Yu Yang
- Department of Urology, Qianfoshan Hospital Affiliated to Shandong University, Jinan 250014, China,
| | - Feng Wang
- Department of Urology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Hang Huang
- Department of Urology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Yan Zhang
- Transplant Section, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Hui Xie
- Department of Urology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Tongyi Men
- Department of Urology, Qianfoshan Hospital Affiliated to Shandong University, Jinan 250014, China,
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