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Liu Y, Ouyang L, Jiang S, Liang L, Chen Y, Mao C, Jiang Y, Cong L. PPP2R1A silencing suppresses LUAD progression by sensitizing cells to nelfinavir-induced apoptosis and pyroptosis. Cancer Cell Int 2024; 24:145. [PMID: 38654331 DOI: 10.1186/s12935-024-03321-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 04/05/2024] [Indexed: 04/25/2024] Open
Abstract
Lung adenocarcinoma is a major public health problem with the low 5-year survival rate (15%) among cancers. Aberrant alterations of meiotic genes, which have gained increased attention recently, might contribute to elevated tumor risks. However, systematic and comprehensive studies based on the relationship between meiotic genes and LUAD recurrence and treatment response are still lacking. In this manuscript, we first confirmed that the meiosis related prognostic model (MRPM) was strongly related to LUAD progression via LASSO-Cox regression analyses. Furthermore, we identified the role of PPP2R1A in LUAD, which showed more contributions to LUAD process compared with other meiotic genes in our prognostic model. Additionally, repression of PPP2R1A enhances cellular susceptibility to nelfinavir-induced apoptosis and pyroptosis. Collectively, our findings indicated that meiosis-related genes might be therapeutic targets in LUAD and provided crucial guidelines for LUAD clinical intervention.
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Affiliation(s)
- Yating Liu
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
| | - Lianlian Ouyang
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, Changsha, 410011, China
- Research Unit of Key Technologies of Diagnosis and Treatment for Immune-Related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, 410011, China
| | - Shiyao Jiang
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal University, Changsha, 410013, Hunan, People's Republic of China
- School of Medicine, Hunan Normal University, Changsha, 410013, Hunan, People's Republic of China
| | - Lu Liang
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal University, Changsha, 410013, Hunan, People's Republic of China
- School of Medicine, Hunan Normal University, Changsha, 410013, Hunan, People's Republic of China
| | - Yuanbing Chen
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
| | - Chao Mao
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yiqun Jiang
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal University, Changsha, 410013, Hunan, People's Republic of China.
- School of Medicine, Hunan Normal University, Changsha, 410013, Hunan, People's Republic of China.
| | - Li Cong
- The Key Laboratory of Model Animal and Stem Cell Biology in Hunan Province, Hunan Normal University, Changsha, 410013, Hunan, People's Republic of China.
- School of Medicine, Hunan Normal University, Changsha, 410013, Hunan, People's Republic of China.
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Feng D, Zhao H, Wang Q, Wu J, Ouyang L, Jia S, Lu Q, Zhao M. Aberrant H3K4me3 modification of immune response genes in CD4 + T cells of patients with systemic lupus erythematosus. Int Immunopharmacol 2024; 130:111748. [PMID: 38432146 DOI: 10.1016/j.intimp.2024.111748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 01/17/2024] [Accepted: 02/21/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND Increasing evidence has highlighted the significant role of histone modifications in pathogenesis of systemic lupus erythematosus (SLE). However, few studies have comprehensively analyzed trimethylation of histone H3 lysine 4 (H3K4me3) features at specific immune gene loci in SLE patients. METHODS We conducted H3K4me3 chromatin immunoprecipitation sequencing (ChIP-seq) on CD4+ T cells from SLE patients and healthy controls (HC). Differential H3K4me3 peaks were identified, followed by enrichment analysis. We integrated online RNA-seq and DNA methylation datasets to explore the relationship between H3K4me3 modification, DNA methylation and gene expression. We validated several upregulated peak regions by ChIP-qPCR and confirmed their impact on gene expression using RT-qPCR. Finally, we investigated the impact of H3K4 methyltransferases KMT2A on the expression of immune response genes. RESULTS we identified 147 downregulated and 2701 upregulated H3K4me3 peaks in CD4+ T cells of SLE. The upregulated peaks primarily classified as gained peaks and enriched in immune response genes such as FCGR2A, C5AR1, SERPING1 and OASL. Genes with upregulated H3K4me3 and downregulated DNA methylations in the promoter were highly expressed in SLE patients. These genes, including OAS1, IFI27 and IFI44L, were enriched in immune response pathways. The IFI44L locus also showed increased H3K27ac modification, chromatin accessibility and chromatin interactions in SLE. Moreover, knockdown of KMT2A can downregulate the expression of immune response genes in T cells. CONCLUSION Our study uncovers dysregulated H3K4me3 modification patterns in immune response genes loci, which also exhibit downregulated DNA methylation and higher mRNA expression in CD4+ T cells of SLE patients.
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Affiliation(s)
- Delong Feng
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Hongjun Zhao
- Department of Rheumatology, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Qian Wang
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Jiali Wu
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Lianlian Ouyang
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Sujie Jia
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu, China
| | - Qianjin Lu
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China; Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu, China; Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences, Nanjing, Jiangsu, China
| | - Ming Zhao
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China; Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu, China; Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences, Nanjing, Jiangsu, China.
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Santinello B, Sun R, Amjad A, Hoyt SJ, Ouyang L, Courret C, Drennan R, Leo L, Larracuente AM, Core LM, O’Neill RJ, Mellone BG. A centromere-derived retroelement RNA localizes in cis and is a core element of the transcriptional landscape of Drosophila centromeres. bioRxiv 2024:2024.01.14.574223. [PMID: 38293134 PMCID: PMC10827089 DOI: 10.1101/2024.01.14.574223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Centromeres are essential chromosomal landmarks that dictate the point of attachment between chromosomes and spindle microtubules during cell division. The stable transmission of the centromere site through generations is ensured by a unique chromatin containing the histone H3 variant CENP-A. Previous studies have highlighted the impact of transcription on promoting CENP-A deposition. However, the specific sequences undergoing this transcription and their contribution to centromere function in metazoan systems remain elusive. In this study, we unveil the centromeric transcriptional landscape and explore its correlation with CENP-A in D. melanogaster, currently the only in vivo model with assembled centromeres. We find that the centromere-enriched retroelement G2/Jockey-3 (hereafter referred to as Jockey-3) is a major driver of centromere transcription, producing RNAs that localize to all mitotic centromeres, with the Y centromere showing the most transcription. Taking advantage of the polymorphism of Jockey-3, we show that these RNAs remain associated with their cognate DNA sequences in cis. Using a LacI/lacO system to generate de novo centromeres, we find that Jockey-3 transcripts do not localize to ectopic sites, suggesting they are unlikely to function as non-coding RNAs with a structural role at centromeres. At de novo centromeres on the lacO array, the presence of CENP-A augments the detection of exogenous lacO-derived transcripts specifically in metaphase. We propose that Jockey-3 contributes to the epigenetic maintenance of the centromere by promoting chromatin transcription, while inserting in a region that permits its continuous transmission. Given the conservation of retroelements as centromere components across taxa, our findings have broad implications in understanding this widespread association.
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Affiliation(s)
- B Santinello
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT, US
| | - R Sun
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT, US
| | - A Amjad
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT, US
| | - SJ Hoyt
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT, US
| | - L Ouyang
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT, US
| | - C Courret
- Department of Biology, University of Rochester, Rochester, NY, US
| | - R Drennan
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT, US
| | - L Leo
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT, US
- Dipartimento di Biologia e Biotecnologie “Charles Darwin”, “Sapienza” University of Rome, 00185 Rome, Italy
- Present address: RNA editing Lab, Onco-Haematology Department, Genetics and Epigenetics of Pediatric Cancers, Bambino Gesù Children Hospital, IRCCS, 00146 Rome, Italy
| | - AM Larracuente
- Department of Biology, University of Rochester, Rochester, NY, US
| | - LM Core
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT, US
- Institute for Systems Genomics, University of Connecticut, Storrs CT, US
| | - RJ O’Neill
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT, US
- Institute for Systems Genomics, University of Connecticut, Storrs CT, US
- Department of Genetics and Genome Sciences, UConn Health, Farmington, CT, US
| | - BG Mellone
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT, US
- Institute for Systems Genomics, University of Connecticut, Storrs CT, US
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Jiang W, Zhang T, Qiu Y, Liu Q, Chen X, Wang Q, Min X, Ouyang L, Jia S, Lu Q, He Y, Zhao M. Keratinocyte-to-macrophage communication exacerbate psoriasiform dermatitis via LRG1-enriched extracellular vesicles. Theranostics 2024; 14:1049-1064. [PMID: 38250043 PMCID: PMC10797285 DOI: 10.7150/thno.89180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 12/26/2023] [Indexed: 01/23/2024] Open
Abstract
Rationale: Macrophage-associated inflammation and keratinocytes excessive proliferation and inflammatory cytokines secretion induced by stimulation play an important role in the progression of psoriasiform dermatitis. However, how these two types of cells communicate remains obscure. Methods: We induced a mouse model with experimental psoriasiform dermatitis by Imiquimod (IMQ). To investigate whether damaged keratinocytes promote macrophage polarization and accelerate skin lesions by releasing extracellular vesicle (EV), purified EV were isolated from the primary epidermis of 5-day IMQ-induced psoriasiform dermatitis model mice, and then fluorescence-labeled the EV with PKH67. The EV was injected into the skin of mice treated with IMQ or vehicle 2 days in situ. In addition, we established a co-culture system of the human monocytic cell line (THP-1) and HaCaT, and THP-1/HaCaT conditioned media culture model in vitro respectively. Subsequently, we evaluated the effect of Leucine-rich α-2-glycoprotein 1 (LRG1)-enriched EV on macrophage activation. Results: We demonstrated macrophages can significantly promote keratinocyte inflammation and macrophage polarization may be mediated by intercellular communication with keratinocytes. Interestingly, IMQ-induced 5-day, keratinocyte-derived EV recruited macrophage and enhanced the progression of skin lesions. Similar to results in vivo, EV released from M5-treated HaCaT significantly promotes Interleukin 1β (IL-1β) and Tumor necrosis factor α (TNF-α) expression of THP-1 cells. Importantly, we found that LRG1-enriched EV regulates macrophages via TGF beta Receptor 1 (TGFβR1) dependent process. Conclusion: Our findings indicated a novel mechanism for promoting psoriasiform dermatitis, which could be a potential therapeutic target.
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Affiliation(s)
- Wenjuan Jiang
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences, Nanjing, China
| | - Tingting Zhang
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences, Nanjing, China
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yueqi Qiu
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences, Nanjing, China
| | - Qianmei Liu
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences, Nanjing, China
| | - Xiaoyun Chen
- Department of Dermatology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Qiaolin Wang
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences, Nanjing, China
| | - Xiaoli Min
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences, Nanjing, China
| | - Lianlian Ouyang
- Department of Dermatology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Sujie Jia
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences, Nanjing, China
| | - Qianjin Lu
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences, Nanjing, China
- Department of Dermatology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Yuan He
- State Key Laboratory of Natural Medicines, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Ming Zhao
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences, Nanjing, China
- Department of Dermatology, The Second Xiangya Hospital of Central South University, Changsha, China
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Peng X, Wang BY, Li XY, Li YW, Lu Y, Wu GH, Ouyang L, Zou HC. [Utilization of sexual and reproductive health services and its correlates among community- based older adults in Chongqing]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1880-1885. [PMID: 38129143 DOI: 10.3760/cma.j.cn112338-20230519-00315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Objective: To investigate the utilization of sexual health services among community-based older adults in Chongqing and explore its potential correlates. Methods: A cross-sectional survey using multistage sampling among community-based older adults aged ≥50 years was conducted in Chongqing between June 2020 and December 2022. A questionnaire including information on demographic characteristics, general health, sexual health status, and sexual health services utilization was collected. Sexual health and reproductive services utilization was defined as having ever been tested for human immunodeficiency virus (HIV), or having had a male/gynecological reproductive health examination in the past year. Logistic regression was used to examine the correlates of the utilization of sexual health services. Results: A total of 794 community-based older adults participated in the study (482 were male, and 312 were female). The mean age was (62.8±8.2) years. The proportion of HIV testing was 18.0%, and the proportion of reproductive health examination was 10.1% among community-based older adults. The results of multivariate logistic regression analysis showed that the age group of 60-69 years (aOR=0.37, 95%CI: 0.18-0.76), female (aOR=11.34, 95%CI: 5.71-22.52), monthly income ≥5 000 yuan (aOR=3.05, 95%CI: 1.01-9.27), being sexual activity (aOR=4.99, 95%CI: 2.23-11.15) was significantly associated with had a reproductive health examination in the past year. Conclusions: The proportion of sexual health services utilization among older adults was low. Older sexual health education should be further strengthened, the close relationship between older adults should be correctly guided and dealt with, and the sexual health services suitable for the older population should be formulated.
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Affiliation(s)
- X Peng
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - B Y Wang
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - X Y Li
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Y W Li
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - Y Lu
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 550025, China
| | - G H Wu
- Chongqing Center for Disease Control and Prevention, Chongqing 400042, China
| | - L Ouyang
- Chongqing Center for Disease Control and Prevention, Chongqing 400042, China
| | - H C Zou
- School of Public Health, Fudan University, Shanghai 200032, China
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Lu Y, Peng X, Li XY, Fu LW, Tian T, Wang BY, Ouyang L, Wu GH, Zou HC. [Condom use and its correlates among community-based older adults in Chongqing]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1886-1892. [PMID: 38129144 DOI: 10.3760/cma.j.cn112338-20230519-00317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Objective: To understand the current status of condom use and its correlates among community-based older adults in Chongqing, China. Methods: Cross-sectional study based on a multistage sampling method was conducted in Chongqing from June 2020 to December 2022. The estimated sample size was 735. Through face-to-face interviews, the investigators collected the sociodemographic characteristics, sexual behavior characteristics, awareness of AIDS prevention knowledge, etc. A multivariable logistic regression model was used to explore the correlates of condom use during the last sexual behavior among the participants. Results: A total of 761 participants were included in this study, with 476 males and 285 females, whose average age was (63.8±8.2) years old, mainly in the age group of 60-69 years (44.5%). Among the participants, the rate of condom use during the last sexual behavior was 9.7%. The multivariable logistic regression analysis indicated that correlates of condom use during the last sexual behavior included urban household registration (aOR=2.34, 95%CI: 1.12-4.89), monthly income of 1 000-4 999 Yuan, and 5 000 Yuan and above (aOR=4.49, 95%CI: 1.31-15.41; aOR=16.33, 95%CI: 4.30-62.00), self-assessed sexual behavior risk as very risky/relatively risky (aOR=3.97, 95%CI: 1.40-11.31), awareness of AIDS prevention knowledge (aOR=0.36, 95%CI: 0.21-0.62). Conclusions: The rate of condom use among community-based older adults in Chongqing is low. Comprehensive intervention measures should be taken in combination with the characteristics and needs of community-based older adults to improve awareness of AIDS prevention knowledge and perception of AIDS risk and promote condom use among this population.
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Affiliation(s)
- Y Lu
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang 550025, China
| | - X Peng
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - X Y Li
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - L W Fu
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - T Tian
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - B Y Wang
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - L Ouyang
- Chongqing Center for Disease Control and Prevention, Chongqing 400042, China
| | - G H Wu
- Chongqing Center for Disease Control and Prevention, Chongqing 400042, China
| | - H C Zou
- School of Public Health, Fudan University, Shanghai 200032, China
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Chen Y, Liu Y, Xiong J, Ouyang L, Tang M, Mao C, Li L, Xiao D, Liu S, Yang Z, Huang J, Tao Y. LINC02774 inhibits glycolysis in glioma to destabilize HIF-1α dependent on transcription factor RP58. MedComm (Beijing) 2023; 4:e364. [PMID: 37701531 PMCID: PMC10494996 DOI: 10.1002/mco2.364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 07/25/2023] [Accepted: 08/08/2023] [Indexed: 09/14/2023] Open
Abstract
Glioma, the most common of malignant tumors in the brain, is responsible for the majority of deaths from primary brain tumors. The regulation of long noncoding RNAs (lncRNAs) in HIF-1α-driven tumor development remains unclear. LINC02774 is a nuclear lncRNA and that it is being reported for the first time in this study. We found the downregulation of LINC02774 in glioma and decreased with the degree of malignant, with its expression showing a negative correlation with the relative index of enhanced magnetic resonance (RIEMR). RIEMR-associated LINC02774 was found to inhibit glycolysis by modulating the hypoxia pathway rather than the hypoxia response itself. LINC02774 interacted with its neighboring gene, RP58 (ZBTB18), to enhance the expression of PHD3, which catalyzed HIF-1α hydroxylase and ubiquitination, leading to the downregulation of HIF-1α expression. We also found that the function of LINC02774, dependent on PHD3, was diminished upon RP58 depletion. Notably, higher expression of RIEMR-associated LINC02774 was associated with a favorable prognosis. In conclusion, these findings reveal the role of RIEMR-associated LINC02774, which relies on its neighbor gene, RP58, to regulate the hypoxia pathway as a novel tumor suppressor, suggesting its potential to be a prognostic marker and a molecular target for the therapy of glioma.
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Affiliation(s)
- Yuanbing Chen
- Department of NeurosurgeryThird Xiangya Hospital, Central South UniversityChangshaHunanChina
- Department of NeurosurgeryXiangya Hospital, Central South UniversityChangshaChina
- National Clinical Research Center for Geriatric DisordersXiangya Hospital, Central South UniversityChangshaHunanChina
| | - Yating Liu
- Key Laboratory of Carcinogenesis and Cancer InvasionMinistry of Education, Central South UniversityHunanChina
- NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research InstituteCentral South UniversityChangshaHunanChina
| | - Jianbing Xiong
- Department of EmergencyXiangya Hospital, Central South UniversityChangshaHunanChina
| | - Lianlian Ouyang
- Key Laboratory of Carcinogenesis and Cancer InvasionMinistry of Education, Central South UniversityHunanChina
- NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research InstituteCentral South UniversityChangshaHunanChina
| | - Miao Tang
- Department of NeurosurgeryXiangya Hospital, Central South UniversityChangshaChina
- National Clinical Research Center for Geriatric DisordersXiangya Hospital, Central South UniversityChangshaHunanChina
| | - Chao Mao
- Key Laboratory of Carcinogenesis and Cancer InvasionMinistry of Education, Central South UniversityHunanChina
- NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research InstituteCentral South UniversityChangshaHunanChina
| | - Liling Li
- Department of PathologyXiangya Hospital, Central South UniversityChangshaHunanChina
| | - Desheng Xiao
- Department of PathologyXiangya Hospital, Central South UniversityChangshaHunanChina
| | - Shuang Liu
- National Clinical Research Center for Geriatric DisordersXiangya Hospital, Central South UniversityChangshaHunanChina
- Department of OncologyXiangya Hospital, Central South UniversityChangshaChina
| | - Zhen Yang
- Shanghai Key Laboratory of Medical EpigeneticsFudan UniversityShanghaiChina
| | - Jun Huang
- Department of NeurosurgeryXiangya Hospital, Central South UniversityChangshaChina
- National Clinical Research Center for Geriatric DisordersXiangya Hospital, Central South UniversityChangshaHunanChina
| | - Yongguang Tao
- Key Laboratory of Carcinogenesis and Cancer InvasionMinistry of Education, Central South UniversityHunanChina
- NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research InstituteCentral South UniversityChangshaHunanChina
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Wang Z, Ouyang L, Liu N, Li T, Yan B, Mao C, Xiao D, Gan B, Liu S, Tao Y. The DUBA-SLC7A11-c-Myc axis is critical for stemness and ferroptosis. Oncogene 2023; 42:2688-2700. [PMID: 37537342 DOI: 10.1038/s41388-023-02744-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 05/13/2023] [Accepted: 06/05/2023] [Indexed: 08/05/2023]
Abstract
Ferroptosis is characterized by the accumulation of lipid peroxidation as a unique iron-dependent cell death. However, the interplay between stemness and ferroptosis remains unknown. Here, we demonstrate that undifferentiated cells are more sensitive to ferroptosis than differentiated cells, and cystine transporter SLC7A11 protein is highly up-regulated by deubiquitinase DUBA in differentiated cells. Additionally, DUBA promotes stemness by deubiquitinating SLC7A11. Moreover, SLC7A11 drastically increases the expression of c-Myc through cysteine, the combination of sorafenib and c-Myc inhibitor EN4 has a synergetic effect on cancer therapy. Together, our results reveal that enhanced stemness increases the susceptibility to ferroptosis, and the DUBA-SLC7A11-c-Myc axis is pivotal for differentiated cancer stem cells (CSCs) resistant to ferroptosis, providing a promised targets to eradicate CSCs through ferroptosis.
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Affiliation(s)
- Zuli Wang
- Center for Tissue Engineering and Stem Cell Research, Guizhou Medical University, Guiyang, Guizhou, 550025, China
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China
- NHC Key Laboratory of Carcinogenesis of Ministry of Health (Central South University), Cancer Research Institute, School of Basic Medicine, Central South University, Changsha, Hunan, 410078, China
| | - Lianlian Ouyang
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China
- NHC Key Laboratory of Carcinogenesis of Ministry of Health (Central South University), Cancer Research Institute, School of Basic Medicine, Central South University, Changsha, Hunan, 410078, China
| | - Na Liu
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China
- NHC Key Laboratory of Carcinogenesis of Ministry of Health (Central South University), Cancer Research Institute, School of Basic Medicine, Central South University, Changsha, Hunan, 410078, China
| | - Tiansheng Li
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China
- NHC Key Laboratory of Carcinogenesis of Ministry of Health (Central South University), Cancer Research Institute, School of Basic Medicine, Central South University, Changsha, Hunan, 410078, China
| | - Bokang Yan
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China
- NHC Key Laboratory of Carcinogenesis of Ministry of Health (Central South University), Cancer Research Institute, School of Basic Medicine, Central South University, Changsha, Hunan, 410078, China
| | - Chao Mao
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China
- NHC Key Laboratory of Carcinogenesis of Ministry of Health (Central South University), Cancer Research Institute, School of Basic Medicine, Central South University, Changsha, Hunan, 410078, China
| | - Desheng Xiao
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Boyi Gan
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Shuang Liu
- Department of Oncology, Institute of Medical Sciences, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.
| | - Yongguang Tao
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.
- NHC Key Laboratory of Carcinogenesis of Ministry of Health (Central South University), Cancer Research Institute, School of Basic Medicine, Central South University, Changsha, Hunan, 410078, China.
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.
- Department of Thoracic Surgery, Hunan Key Laboratory of Early Diagnosis and Precision Therapy in Lung Cancer and Second Xiangya Hospital, Central South University, Changsha, 410011, China.
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9
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Mei X, Lei Y, Ouyang L, Zhao M, Lu Q. Deficiency of Pink1 promotes the differentiation of Th1 cells. Mol Immunol 2023; 160:23-31. [PMID: 37331031 DOI: 10.1016/j.molimm.2023.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 05/04/2023] [Accepted: 06/07/2023] [Indexed: 06/20/2023]
Abstract
Previous studies have found that Pink1 is crucial for T cell activation and the function of Treg cells. However, the effect of Pink1 on inflammatory Th1 cells is largely unknown. In the process of Th1 differentiation from human naïve T cells, we found a reduction of Pink1 and Parkin. We then focused our attention on the Pink1 KO mice. Although there was no difference in the baseline of the T cell subset of Pink1 KO mice, Th1 differentiation from Pink1 KO naïve T cells in vitro showed a significant increase. Subsequently, we transferred naïve CD4+ T cells into Rag2 KO mice to establish a T-cell colitis mouse model and found that CD4+ T cells in mesentery lymph nodes of mice receiving Pink1 KO cells increased significantly, especially Th1 cells. Intestinal IHC staining also showed that the transcription factor T-bet of Th1 increased. Treatment of CD4+ T cells from lupus-like mice with mitophagy agonist urolithin A, a reduction of Th1 cells was observed, suggesting the clinical value of using mitophagy agonists to suppress Th1-dominated disease in the future.
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Affiliation(s)
- Xiaole Mei
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu, China; Key Laboratory of Basic and Translational Research on Immunological Dermatology, Chinese Academy of Medical Sciences, Nanjing, Jiangsu, China; Institute of Dermatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu, China
| | - Yu Lei
- Department of Dermatology, Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, Hunan, China
| | - Lianlian Ouyang
- Department of Dermatology, Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, Hunan, China
| | - Ming Zhao
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu, China; Key Laboratory of Basic and Translational Research on Immunological Dermatology, Chinese Academy of Medical Sciences, Nanjing, Jiangsu, China; Institute of Dermatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu, China; Department of Dermatology, Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, Hunan, China.
| | - Qianjin Lu
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu, China; Key Laboratory of Basic and Translational Research on Immunological Dermatology, Chinese Academy of Medical Sciences, Nanjing, Jiangsu, China; Institute of Dermatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, Jiangsu, China; Department of Dermatology, Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, Changsha, Hunan, China.
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10
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Zhao M, Feng D, Hu L, Liu L, Wu J, Hu Z, Long H, Kuang Q, Ouyang L, Lu Q. 3D genome alterations in T cells associated with disease activity of systemic lupus erythematosus. Ann Rheum Dis 2023; 82:226-234. [PMID: 36690410 PMCID: PMC9887402 DOI: 10.1136/ard-2022-222653] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 08/17/2022] [Indexed: 02/03/2023]
Abstract
OBJECTIVES Three-dimensional (3D) genome alterations can dysregulate gene expression by rewiring physical interactions within chromosomes in a tissue-specific or cell-specific manner and lead to diseases. We aimed to elucidate the 3D genome structure and its role in gene expression networks dysregulated in systemic lupus erythematosus (SLE). METHODS We performed Hi-C experiments using CD4+ T cells from 7 patients with SLE and 5 age-matched and sex-matched healthy controls (HCs) combined with RNA sequencing analysis. Further integrative analyses, including transcription factor motif enrichment, SPI1 knockdown and histone modifications (H3K27ac, H3K4me1, H3K4me3), were performed for altered loop-associated gene loci in SLE. RESULTS We deciphered the 3D chromosome organisation in T cells of patients with SLE and found it was clearly distinct from that of HCs and closely associated with the disease activity of SLE. Importantly, we identified loops within chromosomes associated with the disease activity of SLE and differentially expressed genes and found some key histone modifications close to these loops. Moreover, we demonstrated the contribution of the transcription factor SPI1, whose motif is located in the altered loop in SLE, to the overexpression of interferon pathway gene. In addition, we identified the potential influences of genetic variations in 3D genome alterations in SLE. CONCLUSIONS Our results highlight the 3D genome structure alterations associated with SLE development and provide a foundation for future interrogation of the relationships between chromosome structure and gene expression control in SLE.
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Affiliation(s)
- Ming Zhao
- Department of Dermatology, The Second Xiangya Hospital of Central South University, Changsha, China
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences, Nanjing, China
| | - Delong Feng
- Department of Dermatology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Longyuan Hu
- Department of Dermatology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Lin Liu
- Epigenetic Group, Frasergen Bioinformatics Co, Ltd, Wuhan, China
| | - Jiali Wu
- Department of Dermatology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Zhi Hu
- Department of Dermatology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Haojun Long
- Department of Dermatology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Qiqi Kuang
- Department of Dermatology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Lianlian Ouyang
- Department of Dermatology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Qianjin Lu
- Department of Dermatology, The Second Xiangya Hospital of Central South University, Changsha, China
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences, Nanjing, China
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11
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Liu Y, Ouyang L, Mao C, Chen Y, Liu N, Chen L, Shi Y, Xiao D, Liu S, Tao Y. Inhibition of RNF182 mediated by Bap promotes non-small cell lung cancer progression. Front Oncol 2023; 12:1009508. [PMID: 36686776 PMCID: PMC9853554 DOI: 10.3389/fonc.2022.1009508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 11/25/2022] [Indexed: 01/08/2023] Open
Abstract
Introduction Ubiquitylation that mediated by ubiquitin ligases plays multiple roles not only in proteasome-mediated protein degradation but also in various cellular process including DNA repair, signal transduction and endocytosis. RING finger (RNF) proteins form the majority of these ubiquitin ligases. Recent studies have demonstrated the important roles of RNF finger proteins in tumorigenesis and tumor progression. Benzo[a]pyrene (BaP) is one of the most common environmental carcinogens causing lung cancer. The molecular mechanism of Bap carcinogenesis remains elusive. Considering the critical roles of RNF proteins in tumorigenesis and tumor progression, we speculate on whether Bap regulates RNF proteins resulting in carcinogenesis. Methods We used GEO analysis to identify the potential RING finger protein family member that contributes to Bap-induced NSCLC. We next used RT-qPCR, Western blot and ChIP assay to investigate the potential mechanism of Bap inhibits RNF182. BGS analyses were used to analyze the methylation level of RNF182. Results Here we reported that the carcinogen Bap suppresses the expression of ring finger protein 182 (RNF182) in non-small cell lung cancer (NSCLC) cells, which is mediated by abnormal hypermethylation in an AhR independent way and transcriptional regulation in an AhR dependent way. Furthermore, RNF182 exhibits low expression and hypermethylation in tumor tissues. RNF182 also significantly suppresses cell proliferation and induces cell cycle arrest in NSCLC cell lines. Conclusion These results demonstrated that Bap inhibits RNF182 expression to promote lung cancer tumorigenesis through activating AhR and promoting abnormal methylation.
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Affiliation(s)
- Yating Liu
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Hunan, Changsha, China,National Health Commission (NHC) Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, China,Postdoctoral Research Station of Clinical Medicine & Department of Hematology and Critical Care Medicine, The 3rd Xiangya Hospital, Central South University, Changsha, China
| | - Lianlian Ouyang
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Hunan, Changsha, China,National Health Commission (NHC) Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, China
| | - Chao Mao
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Hunan, Changsha, China,National Health Commission (NHC) Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, China
| | - Yuanbing Chen
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Hunan, Changsha, China,National Health Commission (NHC) Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, China
| | - Na Liu
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Hunan, Changsha, China,National Health Commission (NHC) Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, China
| | - Ling Chen
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Hunan, Changsha, China,National Health Commission (NHC) Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, China
| | - Ying Shi
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Hunan, Changsha, China,National Health Commission (NHC) Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, China
| | - Desheng Xiao
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Hunan, Changsha, China
| | - Shuang Liu
- Department of Oncology, Institute of Medical Sciences, National Clinical Research, Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China,*Correspondence: Shuang Liu, ; Yongguang Tao,
| | - Yongguang Tao
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Hunan, Changsha, China,National Health Commission (NHC) Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, China,Hunan Key Laboratory of Early Diagnosis and Precision Therapy in Lung Cancer, Second Xiangya Hospital, Central South University, Changsha, China,*Correspondence: Shuang Liu, ; Yongguang Tao,
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12
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Peng Y, Ouyang L, Zhou Y, Lai W, Chen Y, Wang Z, Yan B, Zhang Z, Zhou Y, Peng X, Chen J, Peng X, Xiao D, Liu S, Tao Y, Liu W. AhR Promotes the Development of Non-small cell lung cancer by Inducing SLC7A11-dependent Antioxidant Function. J Cancer 2023; 14:821-834. [PMID: 37056388 PMCID: PMC10088881 DOI: 10.7150/jca.82066] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 03/03/2023] [Indexed: 04/15/2023] Open
Abstract
Objective: Aryl hydrocarbon receptor (AhR) is a transcription factor. It is reported that AhR is associated with non-small cell lung cancer (NSCLC), but the mechanisms underlying this relationship remain unclear. Therefore, we investigated the role of AhR in NSCLC to elucidate the underlying mechanisms. Methods: We collected clinical lung cancer samples and constructed AhR overexpression and knockdown cell lines to investigate the tumorigenicity of AhR in vivo and in vitro. Furthermore, we performed a ferroptosis induction experiment and chromatin immunoprecipitation experiment. Results: AhR was highly expressed in NSCLC tissue. AhR knockdown cells showed ferroptosis related phenomenon. Furthermore, Chromatin immunoprecipitation confirmed the correlation between AhR and solute carrier family 7 member 11 (SLC7A11) and ferroptosis induction experiment confirmed that AhR affects ferroptosis via SLC7A11. Specifically, AhR regulates ferroptosis-related SLC7A11, which affects ferroptosis and promotes NSCLC progression. Conclusions: AhR promoted NSCLC development and positively correlated with SLC7A11, affecting its actions. AhR bound to the promoter region of SLC7A11 promotes NSCLC by activating SLC7A11 expression, improving the oxidative sensitivity of cells, and inhibiting ferroptosis. Thus, AhR affects ferroptosis in NSCLC by regulating SLC7A11, providing foundational evidence for novel ferroptosis-related treatments.
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Affiliation(s)
- Yuanhao Peng
- Department of Thoracic Surgery, Hunan Key Laboratory of Early Diagnosis and Precision Therapy in Lung Cancer, Second Xiangya Hospital, Central South University, Changsha, Hunan,410011, China
- NHC Key Laboratory of Carcinogenesis, Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, 410078, China
| | - Lianlian Ouyang
- Department of dermatology, Second Xiangya Hospital, Central South University, Changsha,410011, China
| | - Yangying Zhou
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Weiwei Lai
- NHC Key Laboratory of Carcinogenesis, Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, 410078, China
| | - Yuanbing Chen
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Zuli Wang
- Center for Tissue Engineering and Stem Cell Research, Guizhou Medical University, Guizhou, 550025, China
| | - Bokang Yan
- Department of Pathology, Zhuzhou Hospital Affiliated to Xiangya School of Medicine, Central South University, Zhuzhou, Hunan, 412007, China
| | - Zewen Zhang
- NHC Key Laboratory of Carcinogenesis, Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, 410078, China
| | - Yanling Zhou
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Xintong Peng
- NHC Key Laboratory of Carcinogenesis, Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, 410078, China
| | - Jielin Chen
- Department of Pathology, School of Basic Medicine and Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Xin Peng
- Department of Pathology, School of Basic Medicine and Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Desheng Xiao
- Department of Pathology, School of Basic Medicine and Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Shuang Liu
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Yongguang Tao
- Department of Thoracic Surgery, Hunan Key Laboratory of Early Diagnosis and Precision Therapy in Lung Cancer, Second Xiangya Hospital, Central South University, Changsha, Hunan,410011, China
- NHC Key Laboratory of Carcinogenesis, Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, 410078, China
- Department of Pathology, School of Basic Medicine and Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
- ✉ Corresponding authors: ;
| | - Wenliang Liu
- Department of Thoracic Surgery, Hunan Key Laboratory of Early Diagnosis and Precision Therapy in Lung Cancer, Second Xiangya Hospital, Central South University, Changsha, Hunan,410011, China
- ✉ Corresponding authors: ;
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13
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Zheng M, Hu Z, Mei X, Ouyang L, Song Y, Zhou W, Kong Y, Wu R, Rao S, Long H, Shi W, Jing H, Lu S, Wu H, Jia S, Lu Q, Zhao M. Single-cell sequencing shows cellular heterogeneity of cutaneous lesions in lupus erythematosus. Nat Commun 2022; 13:7489. [PMID: 36470882 PMCID: PMC9722937 DOI: 10.1038/s41467-022-35209-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 11/23/2022] [Indexed: 12/12/2022] Open
Abstract
Discoid lupus erythematosus (DLE) and systemic lupus erythematosus (SLE) are both types of lupus, yet the characteristics, and differences between them are not fully understood. Here we show single-cell RNA sequencing data of cutaneous lesions from DLE and SLE patients and skin tissues from healthy controls (HCs). We find significantly higher proportions of T cells, B cells and NK cells in DLE than in SLE. Expanded CCL20+ keratinocyte, CXCL1+ fibroblast, ISGhiCD4/CD8 T cell, ISGhi plasma cell, pDC, and NK subclusters are identified in DLE and SLE compared to HC. In addition, we observe higher cell communication scores between cell types such as fibroblasts and macrophage/dendritic cells in cutaneous lesions of DLE and SLE compared to HC. In summary, we clarify the heterogeneous characteristics in cutaneous lesions between DLE and SLE, and discover some specific cell subtypes and ligand-receptor pairs that indicate possible therapeutic targets of lupus erythematosus.
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Affiliation(s)
- Meiling Zheng
- grid.216417.70000 0001 0379 7164Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, 410011 Changsha, China ,Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, 410011 Changsha, China
| | - Zhi Hu
- grid.216417.70000 0001 0379 7164Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, 410011 Changsha, China ,Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, 410011 Changsha, China
| | - Xiaole Mei
- grid.506261.60000 0001 0706 7839Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, 210042 Nanjing, China
| | - Lianlian Ouyang
- grid.216417.70000 0001 0379 7164Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, 410011 Changsha, China ,Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, 410011 Changsha, China
| | - Yang Song
- grid.216417.70000 0001 0379 7164Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, 410011 Changsha, China ,Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, 410011 Changsha, China
| | - Wenhui Zhou
- grid.216417.70000 0001 0379 7164Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, 410011 Changsha, China ,Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, 410011 Changsha, China
| | - Yi Kong
- grid.216417.70000 0001 0379 7164Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, 410011 Changsha, China ,Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, 410011 Changsha, China
| | - Ruifang Wu
- grid.216417.70000 0001 0379 7164Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, 410011 Changsha, China ,Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, 410011 Changsha, China
| | - Shijia Rao
- grid.216417.70000 0001 0379 7164Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, 410011 Changsha, China ,Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, 410011 Changsha, China
| | - Hai Long
- grid.216417.70000 0001 0379 7164Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, 410011 Changsha, China ,Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, 410011 Changsha, China
| | - Wei Shi
- grid.216417.70000 0001 0379 7164Department of Dermatology, Xiangya Hospital, Central South University, 410008 Changsha, China
| | - Hui Jing
- grid.216417.70000 0001 0379 7164Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, 410011 Changsha, China ,Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, 410011 Changsha, China
| | - Shuang Lu
- grid.216417.70000 0001 0379 7164Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, 410011 Changsha, China ,Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, 410011 Changsha, China
| | - Haijing Wu
- grid.216417.70000 0001 0379 7164Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, 410011 Changsha, China ,Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, 410011 Changsha, China
| | - Sujie Jia
- grid.216417.70000 0001 0379 7164Department of Pharmacy, The Third Xiangya Hospital, Central South University, 410011 Changsha, China
| | - Qianjin Lu
- grid.216417.70000 0001 0379 7164Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, 410011 Changsha, China ,Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, 410011 Changsha, China ,grid.506261.60000 0001 0706 7839Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, 210042 Nanjing, China
| | - Ming Zhao
- grid.216417.70000 0001 0379 7164Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, 410011 Changsha, China ,Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, 410011 Changsha, China
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14
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Min X, Zheng M, Yu Y, Wu J, Kuang Q, Hu Z, Ouyang L, Lu S, Zhao M. Ultraviolet light induces HERV expression to activate RIG-I signalling pathway in keratinocytes. Exp Dermatol 2022; 31:1165-1176. [PMID: 35332586 DOI: 10.1111/exd.14568] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 03/12/2022] [Accepted: 03/21/2022] [Indexed: 11/30/2022]
Abstract
Skin inflammation and photosensitivity are common in lupus erythematosus (LE) patients, and ultraviolet (UV) light is a known trigger of skin and possibly systemic inflammation in systemic lupus erythematosus (SLE) and discoid lupus erythematosus (DLE) patients. Type I interferons (IFN) are upregulated in LE skin after UV exposure; however, the mechanisms to explain UVB-induced inflammation remain unclear. Here, we demonstrated that UVB irradiation-induced activation of human endogenous retroviruses (HERVs) plays a major role in the immune response. UVB-induced HERV-associated dsRNA transcription and subsequent activation of the innate antiviral RIG-I/MDA5/IRF7 pathway led to downstream transcription of interferon-stimulated genes, which promotes UVB-induced apoptosis and proliferation inhibition in keratinocytes through RIG-I and MDA5 pathways. Our findings indicate that UVB irradiation induces HERV-dsRNA overexpression, and the dsRNA-sensing innate immunity pathway promotes type I IFN production, which may be a potential mechanism of skin inflammatory response and skin lesion of SLE/DLE.
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Affiliation(s)
- Xiaoli Min
- Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, Changsha, China
- Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, China
- Clinical Medical Research Center of Major Skin Diseases and Skin Health of Hunan Province, Changsha, China
| | - Meiling Zheng
- Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, Changsha, China
- Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, China
- Clinical Medical Research Center of Major Skin Diseases and Skin Health of Hunan Province, Changsha, China
| | - Yaqin Yu
- Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, Changsha, China
- Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, China
- Clinical Medical Research Center of Major Skin Diseases and Skin Health of Hunan Province, Changsha, China
| | - Jiali Wu
- Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, Changsha, China
- Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, China
- Clinical Medical Research Center of Major Skin Diseases and Skin Health of Hunan Province, Changsha, China
| | - Qiqi Kuang
- Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, Changsha, China
- Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, China
- Clinical Medical Research Center of Major Skin Diseases and Skin Health of Hunan Province, Changsha, China
| | - Zhi Hu
- Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, Changsha, China
- Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, China
- Clinical Medical Research Center of Major Skin Diseases and Skin Health of Hunan Province, Changsha, China
| | - Lianlian Ouyang
- Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, Changsha, China
- Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, China
- Clinical Medical Research Center of Major Skin Diseases and Skin Health of Hunan Province, Changsha, China
| | - Shuang Lu
- Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, Changsha, China
- Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, China
- Clinical Medical Research Center of Major Skin Diseases and Skin Health of Hunan Province, Changsha, China
| | - Ming Zhao
- Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, Changsha, China
- Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, China
- Clinical Medical Research Center of Major Skin Diseases and Skin Health of Hunan Province, Changsha, China
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15
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Liu Y, Ouyang L, Mao C, Chen Y, Li T, Liu N, Wang Z, Lai W, Zhou Y, Cao Y, Liu S, Liang Y, Wang M, Liu S, Chen L, Shi Y, Xiao D, Tao Y. PCDHB14 promotes ferroptosis and is a novel tumor suppressor in hepatocellular carcinoma. Oncogene 2022; 41:3570-3583. [PMID: 35688944 DOI: 10.1038/s41388-022-02370-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 05/19/2022] [Accepted: 05/30/2022] [Indexed: 12/20/2022]
Abstract
Liver cancer, a result of multifactorial interplay between heredity and the environment, is one of the leading causes of cancer-related death worldwide. Hepatocellular carcinoma (HCC) is the most common histologic type of primary liver cancer. Here, we reported that deficiency in PCDHB14, a member of the cadherin superfamily, participates in the progression of HCC. We found that PCDHB14 is inactivated by aberrant methylation of its promoter in HCC patients and that PCDHB14 functions as a tumor suppressor to promote cell cycle arrest, inhibit cell proliferation, and induce ferroptosis. Furthermore, PCDHB14 ablation dramatically enhanced diethylenenitrite-induced HCC development. Mechanistically, PCDHB14 is induced by p53, and increased PCDHB14 downregulates the expression of SLC7A11, which is critical for ferroptosis. This effect is mediated by accelerated p65 protein degradation resulting from PCDHB14 promoting E3 ubiquitin ligase RNF182-mediated ubiquitination of p65 to block p65 binding to the promoter of SLC7A11. This study reports the new discovery that PCDHB14 serves as a potential prognostic marker for HCC.
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Affiliation(s)
- Yating Liu
- Postdoctoral Research Station of Clinical Medicine & Department of Hematology and Critical Care Medicine, the 3rd Xiangya Hospital, Central South University, Changsha, 410000, P. R. China.,Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, Hunan, 410078, P. R. China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, 410078, P. R. China
| | - Lianlian Ouyang
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, Hunan, 410078, P. R. China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, 410078, P. R. China
| | - Chao Mao
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, Hunan, 410078, P. R. China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, 410078, P. R. China
| | - Yuanbing Chen
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, Hunan, 410078, P. R. China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, 410078, P. R. China
| | - Tiansheng Li
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, Hunan, 410078, P. R. China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, 410078, P. R. China
| | - Na Liu
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, Hunan, 410078, P. R. China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, 410078, P. R. China
| | - Zuli Wang
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, Hunan, 410078, P. R. China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, 410078, P. R. China
| | - Weiwei Lai
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, Hunan, 410078, P. R. China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, 410078, P. R. China
| | - Yanling Zhou
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, Hunan, 410078, P. R. China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, 410078, P. R. China
| | - Ya Cao
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, Hunan, 410078, P. R. China
| | - Shuang Liu
- Department of Oncology, Institute of Medical Sciences, National Clinical Research, Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Yinming Liang
- School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, 453003, P. R. China
| | - Min Wang
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, Hunan, 410078, P. R. China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, 410078, P. R. China
| | - Shouping Liu
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, Hunan, 410078, P. R. China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, 410078, P. R. China
| | - Ling Chen
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, Hunan, 410078, P. R. China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, 410078, P. R. China
| | - Ying Shi
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, Hunan, 410078, P. R. China. .,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, 410078, P. R. China.
| | - Desheng Xiao
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, Hunan, 410078, P. R. China. .,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, 410078, P. R. China.
| | - Yongguang Tao
- Department of Pathology, Xiangya Hospital, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, Hunan, 410078, P. R. China. .,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, Changsha, Hunan, 410078, P. R. China. .,Hunan Key Laboratory of Early Diagnosis and Precision Therapy in Lung Cancer, Second Xiangya Hospital, Central South University, Changsha, 410011, P. R. China.
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16
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Liu N, Yang R, Shi Y, Chen L, Liu Y, Wang Z, Liu S, Ouyang L, Wang H, Lai W, Mao C, Wang M, Cheng Y, Liu S, Wang X, Zhou H, Cao Y, Xiao D, Tao Y. The cross-talk between methylation and phosphorylation in lymphoid-specific helicase drives cancer stem-like properties. Signal Transduct Target Ther 2020; 5:197. [PMID: 32994405 PMCID: PMC7524730 DOI: 10.1038/s41392-020-00249-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 06/20/2020] [Accepted: 07/08/2020] [Indexed: 12/21/2022] Open
Abstract
Posttranslational modifications (PTMs) of proteins, including chromatin modifiers, play crucial roles in the dynamic alteration of various protein properties and functions including stem-cell properties. However, the roles of Lymphoid-specific helicase (LSH), a DNA methylation modifier, in modulating stem-like properties in cancer are still not clearly clarified. Therefore, exploring PTMs modulation of LSH activity will be of great significance to further understand the function and activity of LSH. Here, we demonstrate that LSH is capable to undergo PTMs, including methylation and phosphorylation. The arginine methyltransferase PRMT5 can methylate LSH at R309 residue, meanwhile, LSH could as well be phosphorylated by MAPK1 kinase at S503 residue. We further show that the accumulation of phosphorylation of LSH at S503 site exhibits downregulation of LSH methylation at R309 residue, which eventually promoting stem-like properties in lung cancer. Whereas, phosphorylation-deficient LSH S503A mutant promotes the accumulation of LSH methylation at R309 residue and attenuates stem-like properties, indicating the critical roles of LSH PTMs in modulating stem-like properties. Thus, our study highlights the importance of the crosstalk between LSH PTMs in determining its activity and function in lung cancer stem-cell maintenance.
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Affiliation(s)
- Na Liu
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital; Central South University, 410078, Hunan, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078, Changsha, Hunan, China.,Postdoctoral Research Workstation, Department of Neurosurgery, Xiangya Hospital, Central South University, 410078, Hunan, China
| | - Rui Yang
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital; Central South University, 410078, Hunan, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078, Changsha, Hunan, China
| | - Ying Shi
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital; Central South University, 410078, Hunan, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078, Changsha, Hunan, China
| | - Ling Chen
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital; Central South University, 410078, Hunan, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078, Changsha, Hunan, China
| | - Yating Liu
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital; Central South University, 410078, Hunan, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078, Changsha, Hunan, China
| | - Zuli Wang
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital; Central South University, 410078, Hunan, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078, Changsha, Hunan, China
| | - Shouping Liu
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital; Central South University, 410078, Hunan, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078, Changsha, Hunan, China
| | - Lianlian Ouyang
- Department of Oncology, Institute of Medical Sciences, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, 410008, Changsha, Hunan, China
| | - Haiyan Wang
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital; Central South University, 410078, Hunan, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078, Changsha, Hunan, China
| | - Weiwei Lai
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital; Central South University, 410078, Hunan, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078, Changsha, Hunan, China
| | - Chao Mao
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital; Central South University, 410078, Hunan, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078, Changsha, Hunan, China
| | - Min Wang
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital; Central South University, 410078, Hunan, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078, Changsha, Hunan, China
| | - Yan Cheng
- Xiangya School of Pharmaceutical Sciences, Central South University, 410078, Changsha, China
| | - Shuang Liu
- Department of Oncology, Institute of Medical Sciences, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, 410008, Changsha, Hunan, China
| | - Xiang Wang
- Hunan Key Laboratory of Tumor Models and Individualized Medicine; Hunan Key Laboratory of Early Diagnosis and Precision Therapy in Lung Cancer, Department of Thoracic Surgery, Second Xiangya Hospital, Central South University, 410011, Changsha, China
| | - Hu Zhou
- Shanghai Institute of Material Medical, Chinese Academy of Sciences (CAS), 555 Zuchongzhi Road, Zhangjiang Hi-Tech Park, 201203, Shanghai, China
| | - Ya Cao
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital; Central South University, 410078, Hunan, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078, Changsha, Hunan, China
| | - Desheng Xiao
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital; Central South University, 410078, Hunan, China.
| | - Yongguang Tao
- Department of Pathology, Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Xiangya Hospital; Central South University, 410078, Hunan, China. .,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute and School of Basic Medicine, Central South University, 410078, Changsha, Hunan, China. .,Hunan Key Laboratory of Tumor Models and Individualized Medicine; Hunan Key Laboratory of Early Diagnosis and Precision Therapy in Lung Cancer, Department of Thoracic Surgery, Second Xiangya Hospital, Central South University, 410011, Changsha, China.
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17
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He M, Chen X, Luo M, Ouyang L, Xie L, Huang Z, Liu A. Suppressor of cytokine signaling 1 inhibits the maturation of dendritic cells involving the nuclear factor kappa B signaling pathway in the glioma microenvironment. Clin Exp Immunol 2020; 202:47-59. [PMID: 32516488 DOI: 10.1111/cei.13476] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 04/22/2020] [Accepted: 05/24/2020] [Indexed: 12/30/2022] Open
Abstract
Recurrence and diffuse infiltration challenge traditional therapeutic strategies for malignant glioma. Immunotherapy appears to be a promising approach to obtain long-term survival. Dendritic cells (DCs), the most specialized and potent antigen-presenting cells (APCs), play an important part in initiating and amplifying both the innate and adaptive immune responses against cancer cells. However, cancer cells can escape from immune surveillance by inhibiting maturation of DCs. Until the present, molecular mechanisms of maturation inhibition of DCs in the tumor microenvironment (TME) have not been fully revealed. Our study showed that pretreatment with tumor-conditioned medium (TCM) collected from supernatant of primary glioma cells significantly suppressed the maturation of DCs. TCM pretreatment significantly changed the morphology of DCs, TCM decreased the expression levels of CD80, CD83, CD86 and interleukin (IL)-12p70, while it increased the expression levels of IL-10, transforming growth factor (TGF)-β and IL-6. RNA-Seq showed that TCM pretreatment significantly increased the gene expression level of suppressor of cytokine signaling 1 (SOCS1) in DCs. suppressor of cytokine signaling 1 (SOCS1) knock-down significantly antagonized the maturation inhibition of DCs by TCM, which was demonstrated by the restoration of maturation markers. TCM pretreatment also significantly suppressed T cell viability and T helper type 1 (Th1) response, and SOCS1 knock-down significantly antagonized this suppressive effect. Further, TCM pretreatment significantly suppressed p65 nuclear translocation and transcriptional activity in DCs, and SOCS1 knock-down significantly attenuated this suppressive effect. In conclusion, our research demonstrates that TCM up-regulate SOCS1 to suppress the maturation of DCs via the nuclear factor-kappa signaling pathway.
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Affiliation(s)
- M He
- Department of Neurosurgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - X Chen
- Department of Neurosurgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - M Luo
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Department of Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - L Ouyang
- Department of Neurosurgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - L Xie
- Department of Neurosurgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Z Huang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Department of Neurosurgery, The Eighth Affiliated Hospital, Sun Yat-Sen University, Shenzhen, China
| | - A Liu
- Department of Neurosurgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
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18
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Xu CS, Wu MT, Ouyang L, Cai ZS, Ren Y, Lu SF, Shi WZ. Preparation and Properties of Polyaminosiloxane Modified Polyester Waterborne Polyurethane. INT POLYM PROC 2020. [DOI: 10.3139/217.3842] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
In this study, a organosilicon modified waterborne polyurethane (WPU) is synthesized with polyethylene glycol 1,4-butanediol adipate ester diol (PBA) to form the soft segment, dimethylolpropionic acid (DMPA) as the hydrophilic chain extender, and isophorone diisocyanate as the hard segment to synthesize the WPU prepolymer, and aminoethyl aminopropyl dimethicone (AEAPS) as the graft chain extender. The properties of the formed WPU films are then characterized by using Fourier transform infrared spectrometry, thermogravimetric analysis, X-ray diffraction, and dynamic mechanical analysis. It is found that when the amount of AEAPS in the WPU is increased from 0 to 30 wt%, the particle size of the AEAPS modified WPU emulsion is increased from 84.8 nm to 271.9 nm and maintained high centrifugal stability. Moreover, the water absorption of the WPU film is reduced from 43.4% to 24.1%, and the hardness is enhanced from 3H to 5H, while the glass-transition temperature (Tg) of the soft segment of the modified WPU shifts from -37.4 °C to -44.3 °C, and the Tg of the hard segment shifts from 73.6 °C to 118.1 °C. Therefore, the overall performance of AEAPS modified WPU is improved.
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Affiliation(s)
- C.-S. Xu
- School of Textile Science and Engineering , Xi'an Polytechnic University, Xi'an, Shaanxi , PRC
| | - M.-T. Wu
- School of Textile Science and Engineering , Xi'an Polytechnic University, Xi'an, Shaanxi , PRC
| | - L. Ouyang
- Xi'an Wanzi Fine Chemical Technology Co. , Ltd., Xi'an , PRC
| | - Z.-S. Cai
- College of Chemistry , Chemical Engineering and Biotechnology, Donghua University, Shanghai , PRC
| | - Y. Ren
- School of Textile Science and Engineering , Xi'an Polytechnic University, Xi'an, Shaanxi , PRC
| | - S.-F. Lu
- School of Textile Science and Engineering , Xi'an Polytechnic University, Xi'an, Shaanxi , PRC
| | - W.-Z. Shi
- School of Textile Science and Engineering , Xi'an Polytechnic University, Xi'an, Shaanxi , PRC
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19
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Zhang J, Li H, Chen Q, Wu C, Pan H, Pan Y, Zheng J, Wen J, Ouyang L, Zhou C. P2.12-22 Risk Factors for BM Incidence in SCLC: A Predictive Model for SCLC Patients on Brain Metastasis. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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20
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Wang M, Mao C, Ouyang L, Liu Y, Lai W, Liu N, Shi Y, Chen L, Xiao D, Yu F, Wang X, Zhou H, Cao Y, Liu S, Yan Q, Tao Y, Zhang B. Long noncoding RNA LINC00336 inhibits ferroptosis in lung cancer by functioning as a competing endogenous RNA. Cell Death Differ 2019; 26:2329-2343. [PMID: 30787392 PMCID: PMC6889193 DOI: 10.1038/s41418-019-0304-y] [Citation(s) in RCA: 326] [Impact Index Per Article: 65.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 01/26/2019] [Accepted: 02/05/2019] [Indexed: 12/15/2022] Open
Abstract
The regulatory loop between long noncoding RNAs (lncRNAs) and microRNAs has a dynamic role in transcriptional and translational regulation, and is involved in cancer. However, the regulatory circuitry between lncRNAs and microRNAs in tumorigenesis remains elusive. Here we demonstrate that a nuclear lncRNA LINC00336 is upregulated in lung cancer and functions as an oncogene by acting as a competing endogenous RNA (ceRNAs). LINC00336 bound RNA-binding protein ELAVL1 (ELAV-like RNA-binding protein 1) using nucleotides 1901–2107 of LINC00336 and the RRM interaction domain and key amino acids (aa) of ELAVL1 (aa 101–213), inhibiting ferroptosis. Moreover, ELAVL1 increased LINC00336 expression by stabilizing its posttranscriptional level, whereas LSH (lymphoid-specific helicase) increased ELAVL1 expression through the p53 signaling pathway, further supporting the hypothesis that LSH promotes LINC00336 expression. Interestingly, LINC00336 served as an endogenous sponge of microRNA 6852 (MIR6852) to regulate the expression of cystathionine-β-synthase (CBS), a surrogate marker of ferroptosis. Finally, we found that MIR6852 inhibited cell growth by promoting ferroptosis. These data show that the network of lncRNA and ceRNA has an important role in tumorigenesis and ferroptosis.
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Affiliation(s)
- Min Wang
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.,Department of Histology and Embryology, School of Basic Medicine, Central South University, Changsha, Hunan, 410013, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Chao Mao
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Lianlian Ouyang
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China.,Department of Oncology, Institute of Medical Sciences, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Yating Liu
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Weiwei Lai
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Na Liu
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Ying Shi
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Ling Chen
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Desheng Xiao
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Fenglei Yu
- Department of Thoracic Surgery, Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Xiang Wang
- Department of Thoracic Surgery, Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Hu Zhou
- Shanghai Institute of Material Medica, Chinese Academy of Sciences (CAS), 555 Zu Chongzhi Road, Zhangjiang Hi-Tech Park, Shanghai, 201203, China
| | - Ya Cao
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China.,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China
| | - Shuang Liu
- Department of Oncology, Institute of Medical Sciences, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Qin Yan
- Department of Pathology, Yale School of Medicine, New Haven, CT, 06520, USA
| | - Yongguang Tao
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan, 410078, China. .,NHC Key Laboratory of Carcinogenesis (Central South University), Cancer Research Institute, Central South University, Changsha, Hunan, 410078, China. .,Department of Thoracic Surgery, Second Xiangya Hospital, Central South University, Changsha, 410011, China.
| | - Bin Zhang
- Department of Histology and Embryology, School of Basic Medicine, Central South University, Changsha, Hunan, 410013, China.
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Mao C, Wang M, Qian B, Ouyang L, Shi Y, Liu N, Chen L, Xiao D, Wang X, Cao Y, Liu S, Tao Y, Liu W. Aryl hydrocarbon receptor activated by benzo (a) pyrene promotes SMARCA6 expression in NSCLC. Am J Cancer Res 2018; 8:1214-1227. [PMID: 30094095 PMCID: PMC6079155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 06/06/2018] [Indexed: 06/08/2023] Open
Abstract
Recent studies suggest that individual subunits of chromatin-remodeling complexes generate epigenetically specific signaling in tumorigenicity. The impact of environmental factors on the chromatin-remodeling factor has not been thoroughly elucidated to date. We detected the expression level of SMARCA6 (SWI/SNF2-Related, Matrix-Associated, Actin-Dependent Regulator of Chromatin, Subfamily A, Member 6) in NSCLC (Non-small-cell lung carcinoma) and measured it through quantitative real-time PCR (qRT-PCR) and immunohistochemistry. The effects of BaP on proliferation and cell cycle progression were evaluated using MTT, colony formation and FACS analyses. Tumor growth in vivo was observed in a xenograft model. ChIP and qPCR were performed to validate that SMARCA6 was a potential target of AhR in NSCLC. As a result, BaP increased SMARCA6 expression. Smoking was linked with elevated SMARCA6 expression in NSCLC. BaP promoted cancer progression in vitro and in vivo. ChIP assay confirmed that BaP increases SMARCA6 expression via recruitment of AhR and induces SMARCA6 expression by facilitating AhR translocation to the nucleus. Furthermore, inhibition of AhR expression decreases SMARCA6 expression in NSCLC. Finally, knockdown of SMARCA6 attenuates BaP-induced cancer progression. This study demonstrates that BaP promotes proliferation by activation of AhR, which promotes SMARCA6 expression, and may identify new diagnostic and therapeutic targets in lung cancer.
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Affiliation(s)
- Chao Mao
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South UniversityChangsha 410078, Hunan, China
- Key Laboratory of Carcinogenesis of Ministry of Health, Cancer Research Institute, Central South UniversityChangsha 410078, Hunan, China
| | - Min Wang
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South UniversityChangsha 410078, Hunan, China
- Key Laboratory of Carcinogenesis of Ministry of Health, Cancer Research Institute, Central South UniversityChangsha 410078, Hunan, China
- Department of Histology and Embryology, School of Basic Medicine, Central South UniversityChangsha 410013, Hunan, China
| | - Banglun Qian
- Department of Thoracic Surgery, Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
| | - Lianlian Ouyang
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South UniversityChangsha 410078, Hunan, China
- Key Laboratory of Carcinogenesis of Ministry of Health, Cancer Research Institute, Central South UniversityChangsha 410078, Hunan, China
| | - Ying Shi
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South UniversityChangsha 410078, Hunan, China
- Key Laboratory of Carcinogenesis of Ministry of Health, Cancer Research Institute, Central South UniversityChangsha 410078, Hunan, China
| | - Na Liu
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South UniversityChangsha 410078, Hunan, China
- Key Laboratory of Carcinogenesis of Ministry of Health, Cancer Research Institute, Central South UniversityChangsha 410078, Hunan, China
| | - Ling Chen
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South UniversityChangsha 410078, Hunan, China
- Key Laboratory of Carcinogenesis of Ministry of Health, Cancer Research Institute, Central South UniversityChangsha 410078, Hunan, China
| | - Desheng Xiao
- Department of Pathology, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, China
| | - Xiang Wang
- Department of Thoracic Surgery, Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
| | - Ya Cao
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South UniversityChangsha 410078, Hunan, China
- Key Laboratory of Carcinogenesis of Ministry of Health, Cancer Research Institute, Central South UniversityChangsha 410078, Hunan, China
| | - Shuang Liu
- Institute of Medical Sciences, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, China
| | - Yongguang Tao
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Xiangya Hospital, Central South UniversityChangsha 410078, Hunan, China
- Key Laboratory of Carcinogenesis of Ministry of Health, Cancer Research Institute, Central South UniversityChangsha 410078, Hunan, China
- Department of Thoracic Surgery, Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
- Institute of Medical Sciences, Xiangya Hospital, Central South UniversityChangsha 410008, Hunan, China
| | - Wenliang Liu
- Department of Thoracic Surgery, Second Xiangya Hospital, Central South UniversityChangsha 410011, Hunan, China
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Li YH, Shi CY, Duan FQ, Pang Y, Li HB, Zhang LQ, Liu ZH, Ouyang L, Yue CY, Xie MC, Jiang ZJ, Xiao Y. [A clinical analysis of 10 cases with cardiac lymphoma]. Zhonghua Xue Ye Xue Za Zhi 2018; 38:102-106. [PMID: 28279032 PMCID: PMC7354164 DOI: 10.3760/cma.j.issn.0253-2727.2017.02.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
目的 分析心脏淋巴瘤的发病情况、临床特征、治疗效果及预后。 方法 收集2000年1月至2016年6月期间确诊并有心脏累及的10例淋巴瘤患者的资料,对患者的一般资料、临床表现、病理诊断、实验室检查、心脏累及方式、心脏并发症、治疗方式、疗效及预后进行分析。 结果 3 918例淋巴瘤患者中,心脏累及者10例,其中原发性心脏淋巴瘤(PCL)1例(主要累及左右心房,以心肌内多发结节包块为主),继发性心脏淋巴瘤(SCL)9例(主要为心包包块,其中出现心包积液5例,心肌肿块2例)。男性6例,女性4例,中位年龄55(19~88)岁,主要临床表现为呼吸困难7例,胸痛5例,乏力、水肿各2例。病理类型包括弥漫大B细胞淋巴瘤(DLBCL)7例,T淋巴母细胞淋巴瘤、霍奇金淋巴瘤、Burkitt淋巴瘤各1例。心脏并发症包括充血性心力衰竭7例,心律失常4例(主要为窦性心动过速、心房颤动和房室传导阻滞)。除1例高龄、一般状况差未接受治疗外,其余9例患者均接受治疗(单纯化疗4例,化疗联合放疗5例)。中位随访时间为9(1~28)个月。1例PCL患者化疗后获部分缓解(PR),无进展生存(PFS)期为6个月,总生存(OS)期为21个月。SCL患者中6例起病累及心脏者,治疗后1例获完全缓解,5例获PR,中位PFS期为5个月,中位OS期为19个月;3例病情进展累及心脏者,2例治疗后获PR,1例未治疗者死亡,中位PFS期为4个月,OS因数据截尾,未能获得。 结论 心脏淋巴瘤为少见类型,DLBCL为最常见类型,呼吸困难、胸痛为最常见临床表现,并易出现充血性心力衰竭和心律失常,治疗以系统化疗为主,总体预后差。
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Affiliation(s)
- Y H Li
- Department of Hematology, Guangzhou Military Command Guangzhou General Hospital, Guangzhou 510010, China
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Guo W, Li Y, Zhou N, Wu GH, Chang WH, Huan XP, Hui S, Tong X, Guo Y, Yu MH, Lu RR, Ouyang L, Dong LF, Li H, Li JJ, Liu XY, Liu YL, Luo C, Wei XL, Huang XD, Cui Y. [Risk factors related to HIV new infections among men who have sex with men in a cohort study]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 39:16-20. [PMID: 29374888 DOI: 10.3760/cma.j.issn.0254-6450.2018.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objectives: To analyze and understand the risk factors related to HIV new infections among men who have sex with men (MSM). Methods: A longitudinal observational study among MSM was conducted to collect information on HIV related behaviors and sero-conversion. Univariate and multivariate generalized estimating equations (GEE) were used to discuss the risk factors for HIV new infection. Results: A total number of 4 305 MSM were followed during 2013-2015. Among those self-reported MSM who are seeking partners on the Interner tended to have higher proportion on receptive anal intercourse and consistent condom use during anal intercourse than the subgroups seeking their partners in gay bars or bathrooms. HIV incidence among followed MSM during the study period appeared as 4.3/100 person years, with adjusted RR (aRR) of HIV infection for receptive anal intercourse as group 2.20 (95% CI: 1.49-3.24) times than that of insertion anal intercourse group. Those who used rush-poppers (aRR=1.55, 95% CI: 1.10-2.17), unprotected anal intercourse (aRR=2.24, 95%CI: 1.62-3.08), and those with syphilis infection (aRR=2.95, 95%CI: 2.00-4.35) were also risk factors for HIV new infections. After controlling other factors, the relationship between the ways of seeking partners and HIV new infection was not statistical significant. Conclusion: Risk factors for HIV new infection among MSM appeared complex and interactive, suggesting that further studies are needed to generate tailored strategies for the prevention of HIV epidemic among MSM population.
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Affiliation(s)
- W Guo
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206
| | - Y Li
- Center for Disease Control and Prevention in Heilongjiang Province, Harbin 150036
| | - N Zhou
- Center for Disease Control and Prevention in Tianjin, Tianjin 300011
| | - G H Wu
- Center for Disease Control and Prevention in Chongqing, Chong qing 400042
| | - W H Chang
- Center for Disease Control and Prevention in Shaanxi Province. Xi'an 710054
| | - X P Huan
- Center for Disease Control and Prevention in Jiangsu Province, Nanjing 210009
| | - S Hui
- Center for Disease Control and Prevention in Heilongjiang Province, Harbin 150036
| | - X Tong
- Center for Disease Control and Prevention in Heilongjiang Province, Harbin 150036
| | - Y Guo
- Center for Disease Control and Prevention in Tianjin, Tianjin 300011
| | - M H Yu
- Center for Disease Control and Prevention in Tianjin, Tianjin 300011
| | - R R Lu
- Center for Disease Control and Prevention in Chongqing, Chong qing 400042
| | - L Ouyang
- Center for Disease Control and Prevention in Chongqing, Chong qing 400042
| | - L F Dong
- Center for Disease Control and Prevention in Shaanxi Province. Xi'an 710054
| | - H Li
- Center for Disease Control and Prevention in Shaanxi Province. Xi'an 710054
| | - J J Li
- Center for Disease Control and Prevention in Jiangsu Province, Nanjing 210009
| | - X Y Liu
- Center for Disease Control and Prevention in Jiangsu Province, Nanjing 210009
| | - Y L Liu
- Center for Disease Control and Prevention at Harbin City, Harbin 150056
| | - C Luo
- Center for Disease Control and Prevention at Harbin City, Harbin 150056
| | - X L Wei
- Center for Disease Control and Prevention at Xi'an City, Xi'an 710054
| | - X D Huang
- Center for Disease Control and Prevention at Xi'an City, Xi'an 710054
| | - Y Cui
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206
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He HJ, Lyu P, Luan RS, Liao QH, Chang ZJ, Li Y, Ouyang L, Yang J. [Influence of sociocultural factors on HIV transmission among men who have sex with men: a qualitative study]. Zhonghua Yu Fang Yi Xue Za Zhi 2017; 50:858-862. [PMID: 27686762 DOI: 10.3760/cma.j.issn.0253-9624.2016.10.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand how social and cultural factors influence sexual perceptions, sexual practices, and HIV transmission among men who have sex with men at selected sites in China. Methods: Qualitative methodology was used and face to face, semi-structured, in-depth interviews conducted from April 2013 to October 2015 in Sichuan, Jiangxi, Henan, Heilongjiang provinces and Chongqing municipality of China. Results: A total of 184 men who have sex with men participated in the interviews. Forty-eight originated from Henan Province, and 12, 50, 47, and 27 from Jiangxi, Heilongjiang, Sichuan provinces and Chongqing municipality, respectively. A total of 122 participants(66.3%)were under 30 years of age, 111 were college graduates(61.3%), 140 were unmarried(76.5%), and 74 were HIV positive(40.2%). Among interviewees, 6%(11 MSM)were employed at nongovernmental organizations. The main findings revealed that: Owing to sociocultural influences and social norms, most homosexual men concealed their sexual orientation and married females so as to fulfill their family obligation; this may encourage HIV transmission from a high-risk population to the general population; the main features of male homosexual behaviors, as well as those of the associated community and subculture, included hedonism, less concern about health, drug abuse, encouraging of high risk behaviors among men who have sex with men, and negative attitudes regarding HIV prevention; subgroups among MSM were found to have differential HIV transmission risk behaviors, with young men more vulnerable to infection with HIV. Conclusion: Sociocultural factors, including external socioenvironmental circumstances and internal MSM community subcultures, have adverse impacts on HIV transmission among men who have sex with men. Because there were varied behavior modes and HIV transmission risks among MSM subgroups, further study focusing on MSM subgroups is imperative, to provide a basis for more targeted and effective prevention strategies.
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Affiliation(s)
- H J He
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Li B, Shen C, Ouyang L, Yang M, Zhou L, Jiang S, Jia X. WE-FG-207B-03: Multi-Energy CT Reconstruction with Spatial Spectral Nonlocal Means Regularization. Med Phys 2016. [DOI: 10.1118/1.4957948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Chen X, Ouyang L, Yan H, Jia X, Zhang Y, Wang J. WE-AB-207A-09: Optimization of the Design of a Moving Blocker for Cone-Beam CT Scatter Correction: Experimental Evaluation. Med Phys 2016. [DOI: 10.1118/1.4957762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Ouyang L, Folkerts M, Hrycushko B, Lamphier R, Lee H, Yan Y, Jiang S, Timmerman R, Desai N, Abulrahman R, Gu X. TH-EF-BRB-11: Volumetric Modulated Arc Therapy for Total Body Irradiation. Med Phys 2016. [DOI: 10.1118/1.4958257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Ouyang L, Folkerts M, Lee H, Ramirez E, Timmerman R, Abdulrahman R, Jiang S, Gu X. SU-E-T-812: Volumetric Modulated Arc Therapy-Total Body Irradiation (VMAT-TBI) V.s. Conventional Extended SSD-TBI (cTBI): A Dosimetric Comparisom. Med Phys 2015. [DOI: 10.1118/1.4925176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Webster M, Ouyang L, Folkerts M, Tian Z, Jia X, Jiang S, Gu X. SU-E-T-253: Development of a GDPM Monte Carlo Based Quality Assurance Tool for Cyberknife. Med Phys 2015. [DOI: 10.1118/1.4924615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Zhao C, Ouyang L, Wang J, Jin M. SU-E-I-08: Investigation of Deconvolution Methods for Blocker-Based CBCT Scatter Estimation. Med Phys 2015. [DOI: 10.1118/1.4924005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Folkerts M, Ouyang L, Jia X, Jiang S, Gu X. SU-E-T-689: Semi-Automated GPU-Based Monte Carlo Dose Calculation for Total Body Irradiation. Med Phys 2015. [DOI: 10.1118/1.4925052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Ouyang L, Luo Y, Tian M, Zhang SY, Lu R, Wang JH, Kasimu R, Li X. Plant natural products: from traditional compounds to new emerging drugs in cancer therapy. Cell Prolif 2015; 47:506-15. [PMID: 25377084 DOI: 10.1111/cpr.12143] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2014] [Accepted: 07/03/2014] [Indexed: 02/05/2023] Open
Abstract
Natural products are chemical compounds or substances produced naturally by living organisms. With the development of modern technology, more and more plant extracts have been found to be useful to medical practice. Both micromolecules and macromolecules have been reported to have the ability to inhibit tumour progression, a novel weapon to fight cancer by targeting its 10 characteristic hallmarks. In this review, we focus on summarizing plant natural compounds and their derivatives with anti-tumour properties, into categories, according to their potential therapeutic strategies against different types of human cancer. Taken together, we present a well-grounded review of these properties, hoping to shed new light on discovery of novel anti-tumour therapeutic drugs from known plant natural sources.
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Affiliation(s)
- L Ouyang
- State Key Laboratory of Biotherapy and Department of Urology, West China Hospital, Sichuan University, Chengdu, 610041, China
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Wang SY, Fu LL, Zhang SY, Tian M, Zhang L, Zheng YX, Wang JH, Huang J, Ouyang L. In silico analysis and experimental validation of active compounds from fructus Schisandrae chinensis in protection from hepatic injury. Cell Prolif 2014; 48:86-94. [PMID: 25521411 DOI: 10.1111/cpr.12157] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 09/10/2014] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVES The aim of this study was to explore mechanisms by which fructus Schisandrae chinensis (Wuweizi) is able to reveal its protective capacity against hepatocyte injury. MATERIALS AND METHODS Identification of candidate small molecular compounds was performed by text-mining, extraction and isolation, reverse-docking, network construction, molecular docking and molecular dynamics (MD) simulation. In vitro cytological examination and western blotting were used to validate efficacy of selected compounds. RESULTS We analyzed chemical composition of fructus Schisandrae chinensis and constructed protein-protein networks of key targets. Networks of miRNA-protein were constructed. Molecular docking and MD simulation results supported good interaction between selected compound 11/12 and GBA3/SHBG. Further in vitro examination divulged molecular mechanisms involved. CONCLUSIONS In silico analysis and experimental validation together demonstrated that compound 11/12 of fructus Schisandrae chinensis targetted GBA3/SHBG in hepatocytes. Hopefully this will shed light on exploration of its complex molecular mechanisms.
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Affiliation(s)
- S Y Wang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China
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Jiang QL, Zhang S, Tian M, Zhang SY, Xie T, Chen DY, Chen YJ, He J, Liu J, Ouyang L, Jiang X. Plant lectins, from ancient sugar-binding proteins to emerging anti-cancer drugs in apoptosis and autophagy. Cell Prolif 2014; 48:17-28. [PMID: 25488051 DOI: 10.1111/cpr.12155] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 08/28/2014] [Indexed: 02/06/2023] Open
Abstract
Ubiquitously distributed in different plant species, plant lectins are highly diverse carbohydrate-binding proteins of non-immune origin. They have interesting pharmacological activities and currently are of great interest to thousands of people working on biomedical research in cancer-related problems. It has been widely accepted that plant lectins affect both apoptosis and autophagy by modulating representative signalling pathways involved in Bcl-2 family, caspase family, p53, PI3K/Akt, ERK, BNIP3, Ras-Raf and ATG families, in cancer. Plant lectins may have a role as potential new anti-tumour agents in cancer drug discovery. Thus, here we summarize these findings on pathway- involved plant lectins, to provide a comprehensive perspective for further elucidating their potential role as novel anti-cancer drugs, with respect to both apoptosis and autophagy in cancer pathogenesis, and future therapy.
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Affiliation(s)
- Q-L Jiang
- State Key Laboratory of Biotherapy & Collaborative Innovation Center of Biotherapy, Department of Dermatology, Department of Emergency Medicine, West China Hospital, Sichuan University, Chengdu, 610041, China; School of Pharmacy and The First Affiliated Hospital of Chengdu Medical College, Chengdu Medical College, Chengdu, Sichuan, 610500, China; Sichuan Province College Key Laboratory of Structure-Specific Small Molecule Drugs, Chengdu Medical College, Chengdu, Sichuan, 610500, China
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Tong XP, Chen Y, Zhang SY, Xie T, Tian M, Guo MR, Kasimu R, Ouyang L, Wang JH. Key autophagic targets and relevant small-molecule compounds in cancer therapy. Cell Prolif 2014; 48:7-16. [PMID: 25474301 DOI: 10.1111/cpr.12154] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 08/31/2014] [Indexed: 02/05/2023] Open
Abstract
Autophagy is a highly conserved lysosomal degradation process which can recycle unnecessary or dysfunctional cell organelles and proteins, thereby playing a crucial regulatory role in cell survival and maintenance. It has been widely accepted that autophagy regulates various pathological processes, among which cancer attracts much attention. Autophagy may either promote cancer cell survival by providing energy during unfavourable metabolic circumstance or can induce individual cancer cell death by preventing necrosis and increasing genetic instability. Thus, dual roles of autophagy may determine the destiny of cancer cells and make it an attractive target for small-molecule drug discovery. Collectively, key autophagy-related elements as potential targets, oncogenes mTORC1, class I PI3K and AKT, as well as tumour suppressor class III PI3K, Beclin-1 and p53, have been discussed. In addition, some small molecule drugs, such as rapamycin and its derivatives, rottlerin, PP242 and AZD8055 (targeting PI3K/AKT/mTORC1), spautin-1, and tamoxifen, as well as oridonin and metformin (targeting p53), can modulate autophagic pathways in different types of cancer. All these data will shed new light on targeting the autophagic process for cancer therapy, using small-molecule compounds, to fight cancer in the near future.
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Affiliation(s)
- X-P Tong
- State Key Laboratory of Biotherapy & Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China; School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
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Chen Y, He J, Tian M, Zhang SY, Guo MR, Kasimu R, Wang JH, Ouyang L. UNC51-like kinase 1, autophagic regulator and cancer therapeutic target. Cell Prolif 2014; 47:494-505. [PMID: 25327638 DOI: 10.1111/cpr.12145] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 08/12/2014] [Indexed: 02/05/2023] Open
Abstract
Autophagy, the cell process of self-digestion, plays a pivotal role in maintaining energy homoeostasis and protein synthesis. When required, it causes degradation of long-lived proteins and damaged organelles, indicating that it may play a dual role in cancer, by both protecting against and promoting cell death. The autophagy-related gene (Atg) family, with more than 35 members, regulates multiple stages of the process. Serine/threonine protein kinase Atg1 in yeast, for example, can interact with other ATG gene products, functioning in autophagosome formation. One mammalian homologue of Atg1, UNC-51-like kinase 1 (ULK1) and its related complex ULK1-mAtg13-FIP200 can mediate autophagy under nutrient-deprived conditions, by protein-protein interactions and post-translational modifications. Although specific mechanisms of how ULK1 and its complex transduces upstream signals to the downstream central autophagy pathways is not fully understood, past studies have indicated that ULK1 can both suppress and promote tumour growth under different conditions. Here, we summarize some properties of ULK1 which can regulate autophagy in cancer, which may shed new light on future cancer therapy strategies, utilizing ULK1 as a potential new target.
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Affiliation(s)
- Y Chen
- State Key Laboratory of Biotherapy & Collaborative Innovation Center of Biotherapy, Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
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Wang J, Dang J, Ouyang L, Gu X, Pan T. Clinical Evaluation of a Novel 4D-CBCT Reconstruction Scheme Based on Simultaneous Motion Estimation and Image Reconstruction. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Royer JA, Hardin JW, McDermott S, Ouyang L, Mann JR, Ozturk OD, Bolen J. Use of state administrative data sources to study adolescents and young adults with rare conditions. J Gen Intern Med 2014; 29 Suppl 3:S732-8. [PMID: 25029984 PMCID: PMC4124125 DOI: 10.1007/s11606-014-2925-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Effective care of young people with rare conditions requires ongoing coordinated medical treatment as well as educational and social support services. However, information on treatment is often lacking due to limited data. South Carolina has a repository of comprehensive health and human service data with which individuals may be tracked across the data systems of multiple state agencies and organizations. OBJECTIVE To develop a method for studying health care of young persons with rare conditions using this repository. METHODS We identified individuals aged 15 to 24 years diagnosed during 2000-2010 with Fragile X syndrome (FXS), spina bifida (SB), or muscular dystrophy (MD) using a series of algorithms. ICD-9-CM codes were used to initially identify the cohort from medical billing data. Demographics, medical care, employment, education, and socioeconomic status data were then extracted from linked administrative sources. RESULTS We identified 1,040 individuals with these rare conditions: 125 with FXS, 695 with SB, and 220 with MD. The vast majority of the cases (95%) were identified in the Medicaid database. Half of the cohort was male, with a higher percentage in the FXS and MD groups. Sixty-two percent of the cohort was enrolled in the last year of high school. Over half of the cohort received support services from the state's disability and special-needs agency; 16% received food assistance. Thirty-eight percent were employed at some point during the study period. Forty-nine individuals with SB and 56 with MD died during the study period. CONCLUSIONS We used a linked statewide data system to study rare conditions. Strengths include the diversity of information, rigorous identification strategies, and access to longitudinal data. Despite limitations inherent to administrative data, we found that linked state data systems are valuable resources for investigating important public health questions on rare conditions.
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Affiliation(s)
- J. A. Royer
- />Division of Research and Statistics, South Carolina Budget and Control Board, 1919 Blanding Street, Columbia, SC 29201 USA
| | - J. W. Hardin
- />Department of Epidemiology and Biostatistics, University of South Carolina Arnold School of Public Health, 800 Sumter Street, Columbia, SC 29208 USA
| | - S. McDermott
- />Department of Epidemiology and Biostatistics, University of South Carolina Arnold School of Public Health, 800 Sumter Street, Columbia, SC 29208 USA
| | - L. Ouyang
- />Centers for Disease Control and Prevention National Center on Birth Defects and Developmental Disabilities, Atlanta, GA USA
| | - J. R. Mann
- />Department of Family and Preventive Medicine, University of South Carolina School of Medicine, 3209 Colonial Drive, Columbia, SC 29203 USA
| | - O. D. Ozturk
- />Moore School of Business, Department of Economics, University of South Carolina, Columbia, SC 29208 USA
| | - J. Bolen
- />Centers for Disease Control and Prevention National Center on Birth Defects and Developmental Disabilities, Atlanta, GA USA
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Fu LL, Liu J, Chen Y, Wang FT, Wen X, Liu HQ, Wang MY, Ouyang L, Huang J, Bao JK, Wei YQ. In silico analysis and experimental validation of azelastine hydrochloride (N4) targeting sodium taurocholate co-transporting polypeptide (NTCP) in HBV therapy. Cell Prolif 2014; 47:326-35. [PMID: 24965018 DOI: 10.1111/cpr.12117] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2013] [Accepted: 04/26/2014] [Indexed: 01/04/2023] Open
Abstract
OBJECTIVES The aim of this study was to explore sodium taurocholate co-transporting polypeptide (NTCP) exerting its function with hepatitis B virus (HBV) and its targeted candidate compounds, in HBV therapy. MATERIALS AND METHODS Identification of NTCP as a novel HBV target for screening candidate small molecules, was used by phylogenetic analysis, network construction, molecular modelling, molecular docking and molecular dynamics (MD) simulation. In vitro virological examination, q-PCR, western blotting and cytotoxicity studies were used for validating efficacy of the candidate compound. RESULTS We used the phylogenetic analysis of NTCP and constructed its protein-protein network. Also, we screened compounds from Drugbank and ZINC, among which five were validated for their authentication in HepG 2.2.15 cells. Then, we selected compound N4 (azelastine hydrochloride) as the most potent of them. This showed good inhibitory activity against HBsAg (IC50 = 7.5 μm) and HBeAg (IC50 = 3.7 μm), as well as high SI value (SI = 4.68). Further MD simulation results supported good interaction between compound N4 and NTCP. CONCLUSIONS In silico analysis and experimental validation together demonstrated that compound N4 can target NTCP in HepG2.2.15 cells, which may shed light on exploring it as a potential anti-HBV drug.
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Affiliation(s)
- L-L Fu
- College of Life Sciences, Key Laboratory of Bio-resources and Eco-environment, Ministry of Education, Sichuan University, Chengdu, 610064, China
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Xu Y, Bai T, Yan H, Ouyang L, Wang J, Pompos A, Zhou L, Jiang S, Jia X. TH-A-18C-04: Ultrafast Cone-Beam CT Scatter Correction with GPU-Based Monte Carlo Simulation. Med Phys 2014. [DOI: 10.1118/1.4889563] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Ouyang L, Lee H, Wang J. SU-E-J-10: A Moving-Blocker-Based Strategy for Simultaneous Megavoltage and Kilovoltage Scatter Correction in Cone-Beam Computed Tomography Image Acquired During Volumetric Modulated Arc Therapy. Med Phys 2014. [DOI: 10.1118/1.4888061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Xu Y, Yan H, Ouyang L, Wang J, Zhou L, Jiang S, Jia X. WE-G-BRF-04: Robust Real-Time Volumetric Imaging Based On One Single Projection. Med Phys 2014. [DOI: 10.1118/1.4889497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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ZHANG H, Ouyang L, Huang J, Ma J, Chen W, Wang J. TH-A-18C-03: Noise Correlation in CBCT Projection Data and Its Application for Noise Reduction in Low-Dose CBCT. Med Phys 2014. [DOI: 10.1118/1.4889562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Dang J, Gu X, Ouyang L, Pan T, Wang J. TH-E-17A-03: Development and Evaluation of a 4D-CBCT Scheme Based On Simultaneous Motion Estimation and Image Reconstruction. Med Phys 2014. [DOI: 10.1118/1.4889678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Ouyang L, Yan H, Zhang H, Jia X, Jiang S, Wang J. SU-D-12A-07: Optimization of a Moving Blocker System for Cone-Beam Computed Tomography Scatter Correction. Med Phys 2014. [DOI: 10.1118/1.4887931] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Wang P, Ouyang L, Zheng L, Wang Z. Identifying hepatocellular carcinoma-related genes and pathways by system biology analysis. Ir J Med Sci 2014; 184:357-64. [PMID: 24744259 DOI: 10.1007/s11845-014-1119-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Accepted: 03/31/2014] [Indexed: 12/17/2022]
Abstract
BACKGROUND Previous researches have been focused on revealing the functions of each individual gene and/or pathway in the initiation, progression and maintenance of hepatocellular carcinoma (HCC). However, the mechanistic relationships among different genes and/or pathways are largely unknown. AIMS In this study, we tended to uncover the potential molecular networks and critical genes which play important roles in HCC progression. METHODS The transcriptional profiles from normal and HCC patient samples were analyzed and compared using bioinformatic methods, including differentially expressed gene (DEG) analysis, hierarchical clustering, construction of protein-protein interaction (PPI) network and GO-Elite analysis. RESULTS Initially, the normal and HCC sample data were processed and 679 most dramatic DEGs were identified. The PPI network analysis indicates the significance of multiple biological processes as well as signaling pathways in affecting liver function and HCC progression. In addition, hierarchical clustering analysis showed the most significant modules and identified the relationship between different genes, and some important genes such as FOS, IGF1, ADH4, ITGA2 and LEF1 were found to be hubs which master each individual module. CONCLUSION Our study greatly improves the understanding of the HCC development in a systematic manner and provides the potential clue for exploiting drugs which might target the most significant genes and/or signaling pathways.
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Affiliation(s)
- P Wang
- Department of General Surgery, Xiangya Hospital, Central South University, Xiangya Road 87, Changsha, Hunan, China
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Huang J, Qin Y, Liu B, Li GY, Ouyang L, Wang JH. In silico analysis and experimental validation of molecular mechanisms of salvianolic acid A-inhibited LPS-stimulated inflammation, in RAW264.7 macrophages. Cell Prolif 2013; 46:595-605. [PMID: 24033467 DOI: 10.1111/cpr.12056] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Accepted: 06/03/2013] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVES The aim of this study was to explore mechanisms by which salvianolic acid A (SAA) revealed its anti-inflammatory activity, in lipopolysaccharide (LPS)-stimulated RAW264.7 cells. MATERIALS AND METHODS Nitric oxide (NO) concentration was determined by the Griess reaction and cell viability was assessed by MTT assay. Interleukin-6, TNFα and interleukin-1β were determined by ELISA. The RAW264.7 cells were transfected with siRNA against p38 or HO-1. Expressions of COX-2, inducible NO synthase (iNOS), NF-κB, HO-1, p-p38 and phosphorylation of IκB kinase α/β were detected by western blotting. Potential targets of SAA were analysed by homology modelling, target prediction, protein-protein interaction prediction and docking studies. RESULTS Salvianolic acid A suppressed LPS-triggered production of NO, TNFα and Interleukin-6. It also reduced protein expression of inducible NO synthase and COX-2, and reduced translocation of NF-κB to nuclei. Moreover, SAA promoted expression of phosphorylated p38, and downstream HO-1. Zn (II) protoporphyrin IX, a specific inhibitor of HO-1, or siRNA against HO-1 could effectively increase transfer of NF-κB. SAA was predicted to target amyloid-beta protein-like protein and arachidonate 5-lipoxygenase, that could regulate p38 and HO-1. CONCLUSIONS In silico analysis and experimental validation together demonstrated that SAA exhibited its anti-inflammatory effect via the p38-HO-1 pathway in LPS-stimulated RAW264.7 cells, reduced transfer of NF-κB to the nuclei and thus reduced production of inflammatory mediators.
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Affiliation(s)
- J Huang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China
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Ouyang L, Song K, Solberg T, Wang J. WE-G-134-03: A Moving Blocker System for Cone-Beam Computed Tomography Scatter Correction. Med Phys 2013. [DOI: 10.1118/1.4815672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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