1
|
Dong Z, Wang C, Dou S, Yang X, Wang D, Shi K, Wu N. JAK1, SKI, ZBTB16 as potential biomarkers mediate the inflammatory response in keratoconjunctivitis sicca. Gene 2024; 927:148691. [PMID: 38876403 DOI: 10.1016/j.gene.2024.148691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 05/19/2024] [Accepted: 06/11/2024] [Indexed: 06/16/2024]
Abstract
Keratoconjunctivitis sicca (KCS) is an ocular condition characterized by insufficient tear production and inflammatory irritation, with Sjögren's syndrome (SS) being a major causative factor. This study aimed to extract patient transcriptomic data from the GEO database to identify signature genes associated with the diagnosis and treatment of KCS and the expression of three key genes were experimentally verified. We performed a difference analysis on the SS patient dataset and performed a Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis on the resulting genes. Additionally, a Weighted Gene Co-expression Network Analysis (WGCNA) was constructed. Machine learning techniques were employed to analyze the most strongly correlated gene modules with SS traits. These findings were further validated using KCS immune-correlation microarrays as a validation set. The correlation of the three identified genes with 22 immune cells was assessed through immune infiltration analysis. Subsequently, a rat model of desiccated keratoconjunctivitis was established, and the modeling situation and expression of characteristic genes were analyzed at the morphological, tissue, and molecular levels. Bioinformatic prediction revealed that the expression of JAK1, SKI, ZBTB16 not only differed in the machine learning validation set, but also correlated with some immune cells in the immune infiltration analysis. The results of animal experiments showed that the transcription and expression levels of these three genes were significantly different in rat KCS tissues and normal tissues, and there were also differences in the expression of JAK1 and SKI in rat peripheral blood, as well as significant up-regulation of the expression of related inflammatory factors in KCS tissues. Through bioinformatics prediction and animal experimental validation, this study identified three differentially expressed genes in SS mediated KCS patients, which provide new potential biological targets for the diagnosis and treatment of KCS.
Collapse
Affiliation(s)
- Zijian Dong
- School of Clinical Medicine, Guizhou Medical University, Guizhou, China
| | - Chen Wang
- School of Basic Medical Sciences, Guizhou Medical University, Guizhou, China
| | - Shannan Dou
- School of Pharmacy, Tianjin Medical University, Tianjin, China
| | - Xinyi Yang
- School of Clinical Medicine, Guizhou Medical University, Guizhou, China
| | - Desheng Wang
- School of Basic Medical Sciences, Guizhou Medical University, Guizhou, China
| | - Kaixi Shi
- School of Basic Medical Sciences, Guizhou Medical University, Guizhou, China
| | - Ning Wu
- Chemistry and Biochemistry Laboratory, Guizhou Medical University, Guiyang, China.
| |
Collapse
|
2
|
Zhang B, Li J, Wang Y, Liu X, Yang X, Liao Z, Deng S, Deng Y, Zhou Z, Tian Y, Wei W, Meng J, Hu Y, Wan C, Zhang Z, Huang F, Wen L, Wu B, Sun Y, Li Y, Yang K. Deubiquitinase USP7 stabilizes KDM5B and promotes tumor progression and cisplatin resistance in nasopharyngeal carcinoma through the ZBTB16/TOP2A axis. Cell Death Differ 2024; 31:309-321. [PMID: 38287116 PMCID: PMC10923876 DOI: 10.1038/s41418-024-01257-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 01/10/2024] [Accepted: 01/12/2024] [Indexed: 01/31/2024] Open
Abstract
Cisplatin-based chemotherapy improves the control of distant metastases in patients with nasopharyngeal carcinoma (NPC); however, around 30% of patients fail treatment due to acquired drug resistance. Epigenetic regulation is known to contribute to cisplatin resistance; nevertheless, the underlying mechanisms remain poorly understood. Here, we showed that lysine-specific demethylase 5B (KDM5B) was overexpressed and correlates with tumor progression and cisplatin resistance in patients with NPC. We also showed that specific inhibition of KDM5B impaired the progression of NPC and reverses cisplatin resistance, both in vitro and in vivo. Moreover, we found that KDM5B inhibited the expression of ZBTB16 by directly reducing H3K4me3 at the ZBTB16 promoter, which subsequently increased the expression of Topoisomerase II- α (TOP2A) to confer cisplatin resistance in NPC. In addition, we showed that the deubiquitinase USP7 was critical for deubiquitinating and stabilizing KDM5B. More importantly, the deletion of USP7 increased sensitivity to cisplatin by disrupting the stability of KDM5B in NPC cells. Therefore, our findings demonstrated that USP7 stabilized KDM5B and promoted cisplatin resistance through the ZBTB16/TOP2A axis, suggesting that targeting KDM5B may be a promising cisplatin-sensitization strategy in the treatment of NPC.
Collapse
Affiliation(s)
- Bin Zhang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China
| | - Jie Li
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China
| | - Yijun Wang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China
| | - Xixi Liu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China
| | - Xiao Yang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China
| | - Zhiyun Liao
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China
| | - Suke Deng
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China
| | - Yue Deng
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China
| | - Zhiyuan Zhou
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China
| | - Yu Tian
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China
| | - Wenwen Wei
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China
| | - Jingshu Meng
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China
| | - Yan Hu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China
| | - Chao Wan
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China
| | - Zhanjie Zhang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China
| | - Fang Huang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China
| | - Lu Wen
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China
| | - Bian Wu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China
| | - Yajie Sun
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China.
| | - Yan Li
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China.
| | - Kunyu Yang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- Institute of Radiation Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- Hubei Key Laboratory of Precision Radiation Oncology, Wuhan, 430022, China.
| |
Collapse
|
3
|
Kuk SK, Lee JI, Kim K. Prognostic Genomic Markers of Pathological Stage in Oral Squamous Cell Carcinoma. Head Neck Pathol 2023; 17:409-421. [PMID: 36586077 PMCID: PMC10293537 DOI: 10.1007/s12105-022-01516-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 11/24/2022] [Indexed: 01/01/2023]
Abstract
BACKGROUND To identify the prognostic markers of oral squamous cell carcinoma (OSCC), the genetic heterogeneity of the pathological stages was investigated. METHODS The data of 295 patients with primary OSCC obtained from the Cancer Genome Atlas were studied. The genetic prognostic landscape of the pathological stages was systematically analyzed by Cox regressions, Fisher's exact tests, and Gene Ontology (GO) enrichment. RESULTS Stage 4 patients had a poor prognosis in univariate and multivariate Cox models. Transforming growth factor-beta (TGF-β) pathway alterations were found more frequently in stage 4, whereas alterations in cell cycle pathways were significant in stages 1, 2, and 3. The differentially mutated genes were divided into three groups: risk genes of high stage, hazardless genes, and risk genes of low stage. The risk genes of low stage (RNF112, AKR7L, ZSCAN5C, and ZPBP) were independent prognostic factors with stage 4 and treatment modality in multivariate Cox regressions. Additionally, in genetic interaction analysis, NOMO1 and ZNF333 had a high co-occurrence in high stage, and WIZ had high co-occurrence in low stage. In GO enrichment, the prognostic genes were clustered at the functional term of RNA polymerase II transcription, and ZNF333 had an association with RNA transcription. CONCLUSION The genetic mutation type and ratio of tumor heterogeneity are different for each stage of OSCC, and stratification of OSCC patients with differential therapeutic efficacy is needed. Risk genes of both high and low stages must be identified in patients diagnosed with low-stage OSCC. Mutations in NOMO1, ZNF333, and WIZ should be considered as potential prognostic markers.
Collapse
Affiliation(s)
- Su Kyung Kuk
- Division of Biomedical Informatics, College of Medicine, Seoul National University, Seoul, Korea
| | - Jae Il Lee
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Kitae Kim
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
| |
Collapse
|
4
|
Shang X, Liu K, Wang Z, Sun Y, Cao N, Huang W, Zhu Y, Wang W. Screening and analysis of key genes in the biological behavior of bone mesenchymal stem cells seeded on gradient nanostructured titanium compared with native pure Ti. J Biomater Appl 2023; 37:1086-1101. [PMID: 36063429 DOI: 10.1177/08853282221125036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Titanium (Ti) and Ti-based alloy materials are ideal brackets that restore bone defect, and the mechanism of related genes inducing bone mesenchymal stem cells (BMSCs) to osteogenic differentiation is currently a hot research topic. In order to screen key genes of BMSCs during the osteogenic expression process, we acquired data sets (GSE37237 and GSE84500) which were in the database Gene Expression Omnibus (GEO). Investigations on differentially expressed genes (DEGs) and their enrichment of functions were conducted. We constructed relative protein-protein interaction (PPI) network by using Search Tool for the Retrieval of Interacting Genes (STRING) and visualized the expression of DEGs with Cytoscape. A total of 279 DEGs were discerned, which could be divided into 177 down regulated genes and 102 up regulated genes. In addition, the DEGs' enrichment and pathways included regulation of actin cytoskeleton, inflammatory mediator regulation of transient receptor potential (TRP) channels, peroxisome proliferator-activated receptors (PPAR) pathway, cell cycle, Rheumatoid arthritis, mitogen-activated protein kinases (MAPK) signaling pathway and Ras signaling pathway ect. It showed that 10 notable up regulated genes were mainly in AMP-activated protein kinase (AMPK) pathway. Then we used a technology named surface mechanical attrition treatment (SMAT) to prepare gradient nanostructured (GNS) surface Ti and seeded well-growing BMSCs on the surface of SMAT Ti and native pure Ti. Cell Counting Kits-8 (CCK-8), apoptosis experiment, immunofluorescence technology and staining experiments for alka-line phosphatase (ALP) and alizarin red staining (ARS) were used to research the proliferation, adhesion and differentiation ability of BMSCs seeded on SMAT Ti compared with native pure Ti. We used quantitative real-time PCR (qRT-PCR) technology so as to verify the expression of the most significant 5 genes. In summary, these results indicated novel point of views into candidate genes and potential mechanism for the further study of BMSCs' behaviors seeded on SMAT Ti.
Collapse
Affiliation(s)
- Xinyue Shang
- 576019General Dentistry Dep, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110001, China
| | - Keda Liu
- 576019General Dentistry Dep, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110001, China
| | - Zhenbo Wang
- 71123Metallic Nano-Materials Division, Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy Sciences, Shenyang 110016, China
| | - Yantao Sun
- 71123Metallic Nano-Materials Division, Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy Sciences, Shenyang 110016, China
| | - Nanjue Cao
- 576019General Dentistry Dep, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110001, China
| | - Wei Huang
- 576019General Dentistry Dep, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110001, China
| | - Yuhe Zhu
- 576019General Dentistry Dep, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110001, China
| | - Wei Wang
- 576019General Dentistry Dep, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110001, China
| |
Collapse
|
5
|
Zhou JG, Zeng Y, Wang H, Jin SH, Wang YJ, He S, Frey B, Fietkau R, Hecht M, Ma H, Zhang W, Gaipl US. Identification of an endogenous retroviral signature to predict anti-PD1 response in advanced clear cell renal cell carcinoma: an integrated analysis of three clinical trials. Ther Adv Med Oncol 2022; 14:17588359221126154. [PMID: 37614979 PMCID: PMC10442641 DOI: 10.1177/17588359221126154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 08/26/2022] [Indexed: 08/25/2023] Open
Abstract
Background Endogenous retrovirus (ERV) elements are genomic footprints of ancestral retroviral infections within the human genome. Previous studies have demonstrated that dysregulated ERV transcription level is associated with immune cell infiltration in cancers, but the association between ERV expression and programmed cell death protein 1 (PD-1) blockade response is currently unraveled for solid cancers, such as advanced clear cell renal cell carcinoma (ccRCC). Methods ERV mRNA profiles were obtained from three clinical trials of ccRCC where the patients were treated with anti-PD-1 (CM-009, CM-010, CM-025, and TCGA-KIRC data). Patients treated with nivolumab were divided into training and test cohort, while the TCGA-KIRC cohort was used as an external validation. Univariate Cox regression analysis and least absolute shrinkage and selection operator regression were used to establish the signature. Immune cell infiltration analysis and gene set enrichment analysis were performed to explore potential biological mechanisms. Results An ERV signature was established based on nine ERV expression patterns. In the training cohort, the median overall survival in the low- and high-risk group was 45.2 and 19.6 months [hazard ratio (HR) = 0.49, 0.32-0.75, p < 0.001], respectively. The results were confirmed in the test (HR = 0.41, 0.20-0.83, p = 0.013), and in the TCGA-KIRC cohort (HR = 0.55, 0.34-0.90, p = 0.017). Moreover, in the CM-025 cohort, the low-risk group that received nivolumab had a more favorable survival compared with those that received the mTOR inhibitor everolimus, while no significant differences were observed in the high-risk group. CD8+ T cells were enriched in the low-risk group, while immune suppressive pathways were suppressed. Conclusion The newly identified ERV signature is not only a prognostic, but also a predictive biomarker for advanced ccRCC patients who received anti-PD-1 therapy, which can guide personalized treatment in cancer patients in the future.
Collapse
Affiliation(s)
- Jian-Guo Zhou
- Department of Oncology, The second affiliated Hospital of Zunyi Medical University, Zunyi, China Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Erlangen, GermanyDepartment of Radiation Oncology, Universitätsklinikum Erlangen, Erlangen, Germany Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Yu Zeng
- Department of Neurosurgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Haitao Wang
- Thoracic Surgery Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Su-Han Jin
- Department of Orthodontic, School of Stomatology, Zunyi Medical University, Zunyi, China
| | - Yun-Jia Wang
- Department of Oncology, The second affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Sisi He
- Department of Oncology, The second affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Benjamin Frey
- Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Erlangen, GermanyDepartment of Radiation Oncology, Universitätsklinikum Erlangen, Erlangen, Germany Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Erlangen, Germany Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Markus Hecht
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Erlangen, Germany Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Hu Ma
- Director of Department of Oncology, Vice President of the second affiliated Hospital of Zunyi Medical University, Intersection of Xinlong And Xinpu Avenue, Zunyi, 563000, China
| | - Wenchuan Zhang
- Director of Department of Neurosurgery, Department of Neurosurgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Udo S. Gaipl
- Head of Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Universitätsstraße 27, Erlangen, 91054, Germany.Department of Radiation Oncology, Universitätsklinikum Erlangen, Erlangen, Germany. Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| |
Collapse
|
6
|
Can Immune Suppression and Epigenome Regulation in Placenta Offer Novel Insights into Cancer Immune Evasion and Immunotherapy Resistance? EPIGENOMES 2021; 5:epigenomes5030016. [PMID: 34968365 PMCID: PMC8594685 DOI: 10.3390/epigenomes5030016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/18/2021] [Accepted: 07/22/2021] [Indexed: 12/12/2022] Open
Abstract
Cancer is the second leading cause of mortality and morbidity in the developed world. Cancer progression involves genetic and epigenetic alterations, accompanied by aggressive changes, such as increased immune evasion, onset of metastasis, and drug resistance. Similar to cancer, DNA hypomethylation, immune suppression, and invasive cell behaviours are also observed in the human placenta. Mechanisms that lead to the acquisition of invasive behaviour, immune evasion, and drug and immunotherapy resistance are presently under intense investigations to improve patient outcomes. Here, we review current knowledge regarding the similarities between immune suppression and epigenome regulation, including the expression of repetitive elements (REs), endogenous retroviruses (ERVs) and transposable elements (TEs) in cells of the placenta and in cancer, which are associated with changes in immune regulation and invasiveness. We explore whether immune suppression and epigenome regulation in placenta offers novel insights into immunotherapy resistance in cancer, and we also discuss the implications and the knowledge gaps relevant to these findings, which are rapidly being accrued in these quite disparate research fields. Finally, we discuss potential linkages between TE, ERV and RE activation and expression, regarding mechanisms of immune regulation in placenta and cancer. A greater understanding of the role of immune suppression and associated epigenome regulation in placenta could help to elucidate some comparable mechanisms operating in cancer, and identify potential new therapeutic targets for treating cancer.
Collapse
|
7
|
Manjunath M, Yan J, Youn Y, Drucker KL, Kollmeyer TM, McKinney AM, Zazubovich V, Zhang Y, Costello JF, Eckel-Passow J, Selvin PR, Jenkins RB, Song JS. Functional analysis of low-grade glioma genetic variants predicts key target genes and transcription factors. Neuro Oncol 2021; 23:638-649. [PMID: 33130899 DOI: 10.1093/neuonc/noaa248] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Large-scale genome-wide association studies (GWAS) have implicated thousands of germline genetic variants in modulating individuals' risk to various diseases, including cancer. At least 25 risk loci have been identified for low-grade gliomas (LGGs), but their molecular functions remain largely unknown. METHODS We hypothesized that GWAS loci contain causal single nucleotide polymorphisms (SNPs) that reside in accessible open chromatin regions and modulate the expression of target genes by perturbing the binding affinity of transcription factors (TFs). We performed an integrative analysis of genomic and epigenomic data from The Cancer Genome Atlas and other public repositories to identify candidate causal SNPs within linkage disequilibrium blocks of LGG GWAS loci. We assessed their potential regulatory role via in silico TF binding sequence perturbations, convolutional neural network trained on TF binding data, and simulated annealing-based interpretation methods. RESULTS We built an interactive website (http://education.knoweng.org/alg3/) summarizing the functional footprinting of 280 variants in 25 LGG GWAS regions, providing rich information for further computational and experimental scrutiny. We identified as case studies PHLDB1 and SLC25A26 as candidate target genes of rs12803321 and rs11706832, respectively, and predicted the GWAS variant rs648044 to be the causal SNP modulating ZBTB16, a known tumor suppressor in multiple cancers. We showed that rs648044 likely perturbed the binding affinity of the TF MAFF, as supported by RNA interference and in vitro MAFF binding experiments. CONCLUSIONS The identified candidate (causal SNP, target gene, TF) triplets and the accompanying resource will help accelerate our understanding of the molecular mechanisms underlying genetic risk factors for gliomas.
Collapse
Affiliation(s)
- Mohith Manjunath
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA.,Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Jialu Yan
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA.,Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Yeoan Youn
- Center for Biophysics and Quantitative Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Kristen L Drucker
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Thomas M Kollmeyer
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Andrew M McKinney
- Department of Neurological Surgery, University of California San Francisco, San Francisco, California, USA
| | - Valter Zazubovich
- Department of Physics, Concordia University, Montreal, Québec, Canada
| | - Yi Zhang
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA.,Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA.,Department of Data Sciences, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Joseph F Costello
- Department of Neurological Surgery, University of California San Francisco, San Francisco, California, USA
| | | | - Paul R Selvin
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA.,Center for Biophysics and Quantitative Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Robert B Jenkins
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Jun S Song
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA.,Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| |
Collapse
|
8
|
Tong Y, Song Y, Xia C, Deng S. Theoretical and in silico Analyses Reveal MYC as a Dynamic Network Biomarker in Colon and Rectal Cancer. Front Genet 2020; 11:555540. [PMID: 33193630 PMCID: PMC7606845 DOI: 10.3389/fgene.2020.555540] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 09/16/2020] [Indexed: 12/24/2022] Open
Abstract
In this article, we make a theoretical and in silico study for uncovering and evaluating biomarkers in colon and rectal cancer (CRC) by the dynamic network biomarker (DNB) theory. We propose a strategy to employ the theoretical concept of UICC TNM classification in CRC. To reveal the critical transition of CRC, the DNB algorithm was implemented to analyze the genome-wide dynamic network through temporal gene expression data. The relationship between gene sets and clinical features was evaluated by weighted gene co-expression network analysis. The results show that MYC was significantly associated with tumor amplification, tumor immune cells, and survival times. The candidate tumor suppressor genes were ZBTB16, MAL, LIFR, and SLIT2. Protein-protein interaction (PPI) analysis shows that these candidate tumor suppressor genes were significant in immune cells. Data from the Human Protein Atlas showed that a high expression of these candidate tumor suppressor genes was associated with favorable prognosis in TNM stages I-IV. In conclusion, this work provides significant and novel information regarding the TNM stage, cause, and consequences of elevated MYC expression in CRC. MYC expression levels had significant negative correlations with tumor suppressor genes and immune cells.
Collapse
Affiliation(s)
- Yanqiu Tong
- Department of Broadcasting and TV, Chongqing Jiaotong University, Chongqing, China
- Laboratory of Forensic Medicine and Biomedical Informatics, Chongqing Medical University, Chongqing, China
| | - Yang Song
- Department of Medical Informatics, Chongqing Medical University, Chongqing, China
| | - Chuanhui Xia
- School of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing, China
| | - Shixiong Deng
- Laboratory of Forensic Medicine and Biomedical Informatics, Chongqing Medical University, Chongqing, China
| |
Collapse
|
9
|
Reiter A, Bengesser SA, Hauschild AC, Birkl-Töglhofer AM, Fellendorf FT, Platzer M, Färber T, Seidl M, Mendel LM, Unterweger R, Lenger M, Mörkl S, Dalkner N, Birner A, Queissner R, Hamm C, Maget A, Pilz R, Kohlhammer-Dohr A, Wagner-Skacel J, Kreuzer K, Schöggl H, Amberger-Otti D, Lahousen T, Leitner-Afschar B, Haybäck J, Kapfhammer HP, Reininghaus E. Interleukin-6 Gene Expression Changes after a 4-Week Intake of a Multispecies Probiotic in Major Depressive Disorder-Preliminary Results of the PROVIT Study. Nutrients 2020; 12:E2575. [PMID: 32858844 PMCID: PMC7551871 DOI: 10.3390/nu12092575] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 08/20/2020] [Accepted: 08/21/2020] [Indexed: 12/13/2022] Open
Abstract
Major depressive disorder (MDD) is a prevalent disease, in which one third of sufferers do not respond to antidepressants. Probiotics have the potential to be well-tolerated and cost-efficient treatment options. However, the molecular pathways of their effects are not fully elucidated yet. Based on previous literature, we assume that probiotics can positively influence inflammatory mechanisms. We aimed at analyzing the effects of probiotics on gene expression of inflammation genes as part of the randomized, placebo-controlled, multispecies probiotics PROVIT study in Graz, Austria. Fasting blood of 61 inpatients with MDD was collected before and after four weeks of probiotic intake or placebo. We analyzed the effects on gene expression of tumor necrosis factor (TNF), nuclear factor kappa B subunit 1 (NFKB1) and interleukin-6 (IL-6). In IL-6 we found no significant main effects for group (F(1,44) = 1.33, p = ns) nor time (F(1,44) = 0.00, p = ns), but interaction was significant (F(1,44) = 5.67, p < 0.05). The intervention group showed decreasing IL-6 gene expression levels while the placebo group showed increasing gene expression levels of IL-6. Probiotics could be a useful additional treatment in MDD, due to their anti-inflammatory effects. Results of the current study are promising, but further studies are required to investigate the beneficial effects of probiotic interventions in depressed individuals.
Collapse
Affiliation(s)
- Alexandra Reiter
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Susanne A. Bengesser
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Anne-Christin Hauschild
- Department of Mathematics & Computer Science, University of Marburg, 35043 Marburg, Germany;
| | - Anna-Maria Birkl-Töglhofer
- Institute for Pathology, Neuropathology and Molecular Pathology, Medical University of Innsbruck, 6020 Innsbruck, Austria; (A.-M.B.-T.); (J.H.)
| | - Frederike T. Fellendorf
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Martina Platzer
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Tanja Färber
- Institute of Psychology, University of Bamberg, 96047 Bamberg, Germany;
| | - Matthias Seidl
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Lilli-Marie Mendel
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Renate Unterweger
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Melanie Lenger
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Sabrina Mörkl
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Nina Dalkner
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Armin Birner
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Robert Queissner
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Carlo Hamm
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Alexander Maget
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Rene Pilz
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Alexandra Kohlhammer-Dohr
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Jolana Wagner-Skacel
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Kathrin Kreuzer
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Helmut Schöggl
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Daniela Amberger-Otti
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Theresa Lahousen
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Birgitta Leitner-Afschar
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Johannes Haybäck
- Institute for Pathology, Neuropathology and Molecular Pathology, Medical University of Innsbruck, 6020 Innsbruck, Austria; (A.-M.B.-T.); (J.H.)
| | - Hans-Peter Kapfhammer
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| | - Eva Reininghaus
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz, Auenbruggerplatz 31, 8036 Graz, Austria; (A.R.); (F.T.F.); (M.P.); (M.S.); (L.-M.M.); (R.U.); (M.L.); (S.M.); (N.D.); (A.B.); (R.Q.); (C.H.); (A.M.); (R.P.); (A.K.-D.); (J.W.-S.); (K.K.); (H.S.); (D.A.-O.); (T.L.); (B.L.-A.); (H.-P.K.); (E.R.)
| |
Collapse
|
10
|
Tavakolian S, Goudarzi H, Lak E, Faghihloo E. The evaluation of HERV-K env, np9, rec, gag expression in normal, polyp and cancerous tissues of gastric and colon. Future Virol 2019. [DOI: 10.2217/fvl-2019-0114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Aim: Gastrointestinal cancer is one of the most alarming cancers worldwide. Infections exert an impact on tumor progression in gastrointestinal tissues. The alteration in the expression of human endogenous retrovirus-K ( HERV-K) genes could remarkably induce oncogenic activity. Materials & methods: In 22 gastric and 23 colon cancer patients, the expression level of HERV-K env, rec, gag and np9 were evaluated. Results: While there was a slight increase in the expression of HERV-K env in colon cancer tissues, the expression level of this gene decreased in gastric tissues. Moreover, the expression of both np9 and gag HERV-K were upregulated only in colon cancer. Nevertheless, rec HERV-K was downregulated in gastric cancer tissues. Conclusion: HERV-K-associated genes can be used as a possible biomarker for cancers diagnosis.
Collapse
Affiliation(s)
- Shaian Tavakolian
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hossein Goudarzi
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Elena Lak
- Department of gastric & liver, Emam Hossein hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ebrahim Faghihloo
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| |
Collapse
|
11
|
Lin HC, Ko CY, Lee KH, Chen IH, Kao TJ, Chang WC, Hsu TI, Lee YC. E2f1 regulates the induction of promyelocytic leukemia zinc finger transcription in neuronal differentiation of pluripotent P19 embryonal carcinoma cells. Biochem Biophys Res Commun 2019; 512:629-634. [PMID: 30914194 DOI: 10.1016/j.bbrc.2019.03.058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 03/10/2019] [Indexed: 10/27/2022]
Abstract
During brain development, the expression of promyelocytic leukemia zinc finger (Plzf) in neural stem cells is precisely controlled to maintain the balance between neural stem cell self-renewal and differentiation. However, the mechanism underlying transcriptional regulation of Plzf in neural stem cell is still unclear. Herein, using P19 embryonal carcinoma cells as a model, we observed that Plzf expression was induced in the P19-derived embryonic bodies, which enrich neural stem-like cell populations, as demonstrated by the expression of neural stem cell markers, Nestin and Sox2. We then characterized the Plzf promoter and identified two E2f1 binding sites (-755/-751 and -53/-49, the transcription start site was designated as +1) are important for the activation of Plzf promoter. Finally, we found that the induction of Plzf in the neural stem-like cells derived from pluripotent P19 cells is decrease by E2f1 knockdown. Taken together, we conclude that E2f1 is an important transcription factor that regulates Plzf transcription and may involve in maintaining the self-renewal ability of neural stem cells.
Collapse
Affiliation(s)
- Hsin-Chuan Lin
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chiung-Yuan Ko
- PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Kuen-Haur Lee
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - I-Han Chen
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Tzu-Jen Kao
- PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Wen-Chang Chang
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Tsung-I Hsu
- PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan; Research Center of Neuroscience, Taipei Medical University, Taipei, Taiwan.
| | - Yi-Chao Lee
- PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan; Ph.D Program in Biotechnology Research and Development, College of Pharmacy, Taipei Medical University, Taipei, Taiwan.
| |
Collapse
|
12
|
Zhang F, Zhang C. Rnf112 deletion protects brain against intracerebral hemorrhage (ICH) in mice by inhibiting TLR-4/NF-κB pathway. Biochem Biophys Res Commun 2018; 507:43-50. [PMID: 30454900 DOI: 10.1016/j.bbrc.2018.10.141] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 10/23/2018] [Indexed: 12/14/2022]
Abstract
Intracerebral hemorrhage (ICH) is reported as a common and often fatal type of stroke accompanied with high morbidity and mortality, and it frequently results in long-lasting neurological dysfunctions. However, the pathogenesis that contributes to ICH has not been fully understood. Rnf112, also known as Znf179, is a member of the RING finger protein family. The expression of Rnf112 is abundant in the brain and is modulated during brain progression and development. The study aimed to explore the role of Rnf112 in brain injury after ICH, as well as the underlying molecular mechanisms. The results indicated that ICH led to a significant decrease in Rnf112, which was confirmed in oxyhemoglobin (oxyHb)-incubated astrocytes and microglial cells. Moreover, the Rnf112 knockout (Rnf112-/-) mice and wild type (WT) mice induced by ICH were further employed. Compared to the WT/ICH group, Rnf112-/- mice exhibited accelerated brain injury, as evidenced by the increased brain water contents and neurological deficit scores (NDS). In comparison to WT/ICH group, a remarkable up-regulation in the release of pro-inflammatory cytokines, including tumor necrotic factor-α (TNF-α), interleukin-6 (IL-6), and IL-1β, was observed in perihematoma tissues of Rnf112-/- mice on day 3 post-ICH. The process was along with promoted glial fibrillary acidic protein (GFAP) and Iba1 expression and reduced NeuN levels. Furthermore, ICH-induced increases in toll-like receptor (TLR)-4 and myeloid differentiation primary response protein (MyD88) expression were exacerbated by the loss of Rnf112. The phosphorylated expression of IKKα, inhibitor of NF-κB (IκBα) and nuclear factor-kappa B (NF-κB) induced by ICH in perihematoma tissues of mice was markedly enhanced in Rnf112-/- mice. Rnf112 repression-induced inflammatory response was verified in lipopolysaccharide (LPS)-incubated glial cells. In contrast, over-expressing Rnf112 markedly attenuated ICH-induced brain injury by restraining inflammation via inactivating TLR-4/NF-κB pathway. In summary, our findings suggested that Rnf112 expression was highly involved in the progression of ICH, and targeting Rnf112 signaling might be a promising therapeutic strategy against ICH development.
Collapse
Affiliation(s)
- Fan Zhang
- Department of Internal Neurology, No.215 Hospital of Shaanxi Nuclear Industry, Xianyang 712000, China
| | - Chenhong Zhang
- Department of Internal Neurology, No.215 Hospital of Shaanxi Nuclear Industry, Xianyang 712000, China.
| |
Collapse
|
13
|
Wu CC, Lee PT, Kao TJ, Chou SY, Su RY, Lee YC, Yeh SH, Liou JP, Hsu TI, Su TP, Chuang CK, Chang WC, Chuang JY. Upregulation of Znf179 acetylation by SAHA protects cells against oxidative stress. Redox Biol 2018; 19:74-80. [PMID: 30121389 PMCID: PMC6095945 DOI: 10.1016/j.redox.2018.08.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 08/01/2018] [Accepted: 08/03/2018] [Indexed: 12/14/2022] Open
Abstract
The accumulation of reactive oxygen species (ROS) commonly occurs during normal aging and during some acute/chronic progressive disorders. In order to avoid oxidative damage, scavenging of these radicals is important. Previously, we identified zinc finger protein 179 (Znf179) as a neuroprotector that increases antioxidant enzymes against superoxide radicals. However, the molecular mechanisms involved in the activation and regulation of Znf179 remain unresolved. Here, by performing sequence alignment, bioinformatics analysis, immunoprecipitation using two specific acetyl-lysine antibodies, and treatment with the histone deacetylase (HDAC) inhibitor SAHA, we determined the lysine-specific acetylation of Znf179. Furthermore, we investigated Znf179 interaction with HDACs and revealed that peroxide insult induced a dissociation of Znf179-HDAC1/HDAC6, causing an increase in Znf179 acetylation. Importantly, HDAC inhibition by SAHA further prompted Znf179 hyperacetylation, which promoted Znf179 to form a transcriptional complex with Sp1 and increased antioxidant gene expression against oxidative attack. In summary, the results obtained in this study showed that Znf179 was regulated by HDACs and that Znf179 acetylation was a critical mechanism in the induction of antioxidant defense systems. Additionally, HDAC inhibitors may have therapeutic potential for induction of Znf179 acetylation, strengthening the Znf179 protective functions against neurodegenerative processes.
Collapse
Affiliation(s)
- Chung-Che Wu
- Division of Neurosurgery, Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taiwan; Division of Neurosurgery, Department of Surgery, Taipei Medical University Hospital, Taiwan
| | - Pin-Tse Lee
- Cellular Pathobiology Section, Intramural Research Program, National Institute on Drug Abuse, USA
| | - Tzu-Jen Kao
- The Ph.D. Program for Neural Regenerative Medicine, Taipei Medical University, 250 Wuxing Street, Taipei 11031, Taiwan
| | - Szu-Yi Chou
- The Ph.D. Program for Neural Regenerative Medicine, Taipei Medical University, 250 Wuxing Street, Taipei 11031, Taiwan
| | - Ruei-Yuan Su
- Graduate Institute of Medical Science, Taipei Medical University, 250 Wuxing Street, Taipei 11031, Taiwan
| | - Yi-Chao Lee
- The Ph.D. Program for Neural Regenerative Medicine, Taipei Medical University, 250 Wuxing Street, Taipei 11031, Taiwan
| | - Shiu-Hwa Yeh
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Taiwan
| | | | - Tsung-I Hsu
- Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taiwan
| | - Tsung-Ping Su
- Cellular Pathobiology Section, Intramural Research Program, National Institute on Drug Abuse, USA
| | - Cheng-Keng Chuang
- Division of Urology, Department of Surgery, Chang Gung Memorial Hospital, Chang Gung University, Taiwan
| | - Wen-Chang Chang
- Graduate Institute of Medical Science, Taipei Medical University, 250 Wuxing Street, Taipei 11031, Taiwan.
| | - Jian-Ying Chuang
- The Ph.D. Program for Neural Regenerative Medicine, Taipei Medical University, 250 Wuxing Street, Taipei 11031, Taiwan; School of Pharmacy, Taipei Medical University, Taiwan.
| |
Collapse
|
14
|
Chuang JY, Kao TJ, Lin SH, Wu AC, Lee PT, Su TP, Yeh SH, Lee YC, Wu CC, Chang WC. Specificity protein 1-zinc finger protein 179 pathway is involved in the attenuation of oxidative stress following brain injury. Redox Biol 2016; 11:135-143. [PMID: 27918959 PMCID: PMC5144757 DOI: 10.1016/j.redox.2016.11.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 11/08/2016] [Accepted: 11/15/2016] [Indexed: 01/13/2023] Open
Abstract
After sudden traumatic brain injuries, secondary injuries may occur during the following days or weeks, which leads to the accumulation of reactive oxygen species (ROS). Since ROS exacerbate brain damage, it is important to protect neurons against their activity. Zinc finger protein 179 (Znf179) was shown to act as a neuroprotective factor, but the regulation of gene expression under oxidative stress remains unknown. In this study, we demonstrated an increase in Znf179 protein levels in both in vitro model of hydrogen peroxide (H2O2)-induced ROS accumulation and animal models of traumatic brain injury. Additionally, we examined the sub-cellular localization of Znf179, and demonstrated that oxidative stress increases Znf179 nuclear shuttling and its interaction with specificity protein 1 (Sp1). Subsequently, the positive autoregulation of Znf179 expression, which is Sp1-dependent, was further demonstrated using luciferase reporter assay and green fluorescent protein (GFP)-Znf179-expressing cells and transgenic mice. The upregulation of Sp1 transcriptional activity induced by the treatment with nerve growth factor (NGF) led to an increase in Znf179 levels, which further protected cells against H2O2-induced damage. However, Sp1 inhibitor, mithramycin A, was shown to inhibit NGF effects, leading to a decrease in Znf179 expression and lower cellular protection. In conclusion, the results obtained in this study show that Znf179 autoregulation through Sp1-dependent mechanism plays an important role in neuroprotection, and NGF-induced Sp1 signaling may help attenuate more extensive (ROS-induced) damage following brain injury. Znf179 levels increase in vitro after hydrogen peroxide treatment. Znf179 levels increase in vivo in traumatic brain injury mouse model. Oxidative stress increases Znf179 translocation to nucleus. Znf179 autoregulates its expression through Sp1-dependent mechanism. Sp1-Znf179 pathway plays an important role in neuroprotection.
Collapse
Affiliation(s)
- Jian-Ying Chuang
- Graduate Institute of Neural Regenerative Medicine, Taipei Medical University, Taipei 110, Taiwan; Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei 110, Taiwan.
| | - Tzu-Jen Kao
- Graduate Institute of Neural Regenerative Medicine, Taipei Medical University, Taipei 110, Taiwan; Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei 110, Taiwan.
| | - Shu-Hui Lin
- Graduate Institute of Neural Regenerative Medicine, Taipei Medical University, Taipei 110, Taiwan; Graduate Institute of Medical Science, Taipei Medical University, Taipei 110, Taiwan.
| | - An-Chih Wu
- Graduate Institute of Neural Regenerative Medicine, Taipei Medical University, Taipei 110, Taiwan; Graduate Institute of Medical Science, Taipei Medical University, Taipei 110, Taiwan.
| | - Pin-Tse Lee
- Cellular Pathobiology Section, Intramural Research Program, National Institute on Drug Abuse, Baltimore, MD 21224, USA.
| | - Tsung-Ping Su
- Cellular Pathobiology Section, Intramural Research Program, National Institute on Drug Abuse, Baltimore, MD 21224, USA.
| | - Shiu-Hwa Yeh
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Miaoli 350, Taiwan.
| | - Yi-Chao Lee
- Graduate Institute of Neural Regenerative Medicine, Taipei Medical University, Taipei 110, Taiwan; Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei 110, Taiwan.
| | - Chung-Che Wu
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei Medical University, Taipei 110, Taiwan.
| | - Wen-Chang Chang
- Graduate Institute of Medical Science, Taipei Medical University, Taipei 110, Taiwan.
| |
Collapse
|
15
|
Baculovirus FP25K Localization: Role of the Coiled-Coil Domain. J Virol 2016; 90:9582-9597. [PMID: 27512078 DOI: 10.1128/jvi.01241-16] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Accepted: 08/03/2016] [Indexed: 11/20/2022] Open
Abstract
Two types of viruses are produced during the baculovirus life cycle: budded virus (BV) and occlusion-derived virus (ODV). A particular baculovirus protein, FP25K, is involved in the switch from BV to ODV production. Previously, FP25K from the model alphabaculovirus Autographa californica multiple nucleopolyhedrovirus (AcMNPV) was shown to traffic ODV envelope proteins. However, FP25K localization and the domains involved are inconclusive. Here we used a quantitative approach to study FP25K subcellular localization during infection using an AcMNPV bacmid virus that produces a functional AcMNPV FP25K-green fluorescent protein (GFP) fusion protein. During cell infection, FP25K-GFP localized primarily to the cytoplasm, particularly amorphous structures, with a small fraction being localized in the nucleus. To investigate the sequences involved in FP25K localization, an alignment of baculovirus FP25K sequences revealed that the N-terminal putative coiled-coil domain is present in all alphabaculoviruses but absent in betabaculoviruses. Structural prediction indicated a strong relatedness of AcMNPV FP25K to long interspersed element 1 (LINE-1) open reading frame 1 protein (ORF1p), which contains an N-terminal coiled-coil domain responsible for cytoplasmic retention. Point mutations and deletions of this domain lead to a change in AcMNPV FP25K localization from cytoplasmic to nuclear. The coiled-coil and C-terminal deletion viruses increased BV production. Furthermore, a betabaculovirus FP25K protein lacking this N-terminal coiled-coil domain localized predominantly to the nucleus and exhibited increased BV production. These data suggest that the acquisition of this N-terminal coiled-coil domain in FP25K is important for the evolution of alphabaculoviruses. Moreover, with the divergence of preocclusion nuclear membrane breakdown in betabaculoviruses and membrane integrity in alphabaculoviruses, this domain represents an alphabaculovirus adaptation for nuclear trafficking of occlusion-associated proteins. IMPORTANCE Baculovirus infection produces two forms of viruses: BV and ODV. Manufacturing of ODV involves trafficking of envelope proteins to the inner nuclear membrane, mediated partly through the FP25K protein. Since FP25K is present in alpha-, beta-, and gammabaculoviruses, it is uncertain if this trafficking function is conserved. In this study, we looked at alpha- and betabaculovirus FP25K trafficking by its localization. Alphabaculovirus FP25K localized primarily to the cytoplasm, whereas betabaculovirus FP25K localized to the nucleus. We found that an N-terminal coiled-coil domain present in all alphabaculovirus FP25K proteins, but absent in betabaculovirus FP25K, was critical for alphabaculovirus FP25K cytoplasmic localization. We believe that this represents an evolutionary process that partly led to the gain of function of this N-terminal coiled-coil domain in alphabaculovirus FP25K to aid in nuclear trafficking of occlusion-associated proteins. Due to betabaculovirus breakdown of the nuclear membrane before occlusion, this function is not needed, and the domain was lost or never acquired.
Collapse
|
16
|
Su TC, Lin SH, Lee PT, Yeh SH, Hsieh TH, Chou SY, Su TP, Hung JJ, Chang WC, Lee YC, Chuang JY. The sigma-1 receptor-zinc finger protein 179 pathway protects against hydrogen peroxide-induced cell injury. Neuropharmacology 2016; 105:1-9. [PMID: 26792191 PMCID: PMC5520630 DOI: 10.1016/j.neuropharm.2016.01.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 12/14/2015] [Accepted: 01/08/2016] [Indexed: 11/25/2022]
Abstract
The accumulation of reactive oxygen species (ROS) have implicated the pathogenesis of several human diseases including neurodegenerative disorders, stroke, and traumatic brain injury, hence protecting neurons against ROS is very important. In this study, we focused on sigma-1 receptor (Sig-1R), a chaperone at endoplasmic reticulum, and investigated its protective functions. Using hydrogen peroxide (H2O2)-induced ROS accumulation model, we verified that apoptosis-signaling pathways were elicited by H2O2 treatment. However, the Sig-1R agonists, dehydroepiandrosterone (DHEA) and DHEA sulfate (DHEAS), reduced the activation of apoptotic pathways significantly. By performing protein-protein interaction assays and shRNA knockdown of Sig-1R, we identified the brain Zinc finger protein 179 (Znf179) as a downstream target of Sig-1R regulation. The neuroprotective effect of Znf179 overexpression was similar to that of DHEAS treatment, and likely mediated by affecting the levels of antioxidant enzymes. We also quantified the levels of peroxiredoxin 3 (Prx3) and superoxide dismutase 2 (SOD2) in the hippocampi of wild-type and Znf179 knockout mice, and found both enzymes to be reduced in the knockout versus the wild-type mice. In summary, these results reveal that Znf179 plays a novel role in neuroprotection, and Sig-1R agonists may be therapeutic candidates to prevent ROS-induced damage in neurodegenerative and neurotraumatic diseases.
Collapse
Affiliation(s)
- Tzu-Chieh Su
- Graduate Institute of Medical Science, Taipei Medical University, Taiwan
| | - Shu-Hui Lin
- Graduate Institute of Medical Science, Taipei Medical University, Taiwan; Graduate Institute of Neural Regenerative Medicine, Taipei Medical University, Taiwan
| | - Pin-Tse Lee
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Taiwan; Cellular Pathobiology Section, Intramural Research Program, National Institute on Drug Abuse, USA
| | - Shiu-Hwa Yeh
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Taiwan
| | - Tsung-Hsun Hsieh
- Graduate Institute of Neural Regenerative Medicine, Taipei Medical University, Taiwan
| | - Szu-Yi Chou
- Graduate Institute of Neural Regenerative Medicine, Taipei Medical University, Taiwan
| | - Tsung-Ping Su
- Cellular Pathobiology Section, Intramural Research Program, National Institute on Drug Abuse, USA
| | - Jan-Jong Hung
- Institute of Bioinformatics and Biosignal Transduction, National Cheng Kung University, Taiwan
| | - Wen-Chang Chang
- Graduate Institute of Medical Science, Taipei Medical University, Taiwan; Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taiwan
| | - Yi-Chao Lee
- Graduate Institute of Neural Regenerative Medicine, Taipei Medical University, Taiwan; Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taiwan.
| | - Jian-Ying Chuang
- Graduate Institute of Neural Regenerative Medicine, Taipei Medical University, Taiwan; Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taiwan.
| |
Collapse
|
17
|
Tsou JH, Yang YC, Pao PC, Lin HC, Huang NK, Lin ST, Hsu KS, Yeh CM, Lee KH, Kuo CJ, Yang DM, Lin JH, Chang WC, Lee YC. Important Roles of Ring Finger Protein 112 in Embryonic Vascular Development and Brain Functions. Mol Neurobiol 2016; 54:2286-2300. [PMID: 26951452 DOI: 10.1007/s12035-016-9812-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 02/22/2016] [Indexed: 11/28/2022]
Abstract
Rnf112 is a member of the RING finger protein family. The expression of Rnf112 is abundant in the brain and is regulated during brain development. Our previous study has revealed that Rnf112 can promote neuronal differentiation by inhibiting the progression of the cell cycle in cell models. In this study, we further revealed the important functions of Rnf112 in embryo development and in adult brain. Our data showed that most of the Rnf112 -/- embryos exhibited blood vascular defects and died in utero. Upon further investigation, we found that the survival rate of homozygous Rnf112 knockout mice in 129/sv and C57BL/6 mixed genetic background was increased. The survived newborns of Rnf112 -/- mice manifested growth retardation as indicated by smaller size and a reduced weight. Although the overall organization of the brain did not appear to be severely affected in Rnf112 -/- mice, using in vivo 3D MRI imaging, we found that when compared to wild-type littermates, brains of Rnf112 -/- mice were smaller. In addition, Rnf112 -/- mice displayed impairment of brain functions including motor balance, and spatial learning and memory. Our results provide important aspects for the study of Rnf112 gene functions.
Collapse
Affiliation(s)
- Jen-Hui Tsou
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Ying-Chen Yang
- Department of Biotechnology and Animal Science, College of Bioresources, National Ilan University, Ilan, Taiwan
| | - Ping-Chieh Pao
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hui-Ching Lin
- Department and Institute of Physiology, School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Brain Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Nai-Kuei Huang
- National Research Institute of Chinese Medicine, Taipei, Taiwan.,Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
| | - Shih-Ting Lin
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Kuei-Sen Hsu
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Che-Ming Yeh
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Kuen-Haur Lee
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Chu-Jen Kuo
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan.,Department of Radiology, Shin Kong Wu Ho-Su Memorial Hospital, School of Medicine, Fu Jen Catholic University, Taipei, Taiwan
| | - De-Ming Yang
- Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Biophotonics, School of Medical Technology and Engineering, National Yang-Ming University, Taipei, Taiwan
| | - Jiann-Her Lin
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
| | - Wen-Chang Chang
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yi-Chao Lee
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan. .,Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan.
| |
Collapse
|
18
|
Gonzalez-Cao M, Iduma P, Karachaliou N, Santarpia M, Blanco J, Rosell R. Human endogenous retroviruses and cancer. Cancer Biol Med 2016; 13:483-488. [PMID: 28154780 PMCID: PMC5250606 DOI: 10.20892/j.issn.2095-3941.2016.0080] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Human endogenous retroviruses (HERVs) are retroviruses that infected human genome millions of years ago and have persisted throughout human evolution. About 8% of our genome is composed of HERVs, most of which are nonfunctional because of epigenetic control or deactivating mutations. However, a correlation between HERVs and human cancer has been described and many tumors, such as melanoma, breast cancer, germ cell tumors, renal cancer or ovarian cancer, express HERV proteins, mainly HERV-K (HML6) and HERV-K (HML2). Although the causative role of HERVs in cancer is controversial, data from animal models demonstrated that endogenous retroviruses are potentially oncogenic. HERV protein expression in human cells generates an immune response by activating innate and adaptive immunities. Some HERV-derived peptides have antigenic properties. For example, HERV-K (HML-6) encodes the HER-K MEL peptide recognized by CD8+ lymphocytes. In addition, HERVs are two-edged immunomodulators. HERVs show immunosuppressive activity. The presence of genomic retroviral elements in host-cell cytosol may activate an interferon type I response. Therefore, targeting HERVs through cellular vaccines or immunomodulatory drugs combined with checkpoint inhibitors is attracting interest because they could be active in human tumors.
Collapse
Affiliation(s)
- María Gonzalez-Cao
- Translational Cancer Research Unit, Instituto Oncológico Dr Rosell, Quirón Dexeus University Hospital, Barcelona 08028, Spain
| | - Paola Iduma
- AIDS Research Institute, Hospital Universitari Germans Trias i Pujol, Badalona 08028, Spain
| | - Niki Karachaliou
- Translational Cancer Research Unit, Instituto Oncológico Dr Rosell, Quirón Dexeus University Hospital, Barcelona 08028, Spain
| | - Mariacarmela Santarpia
- Medical Oncology Unit, Human Pathology Department, University of Messina, Messina, 98122, Italy
| | - Julià Blanco
- AIDS Research Institute, Hospital Universitari Germans Trias i Pujol, Badalona 08028, Spain; UVIC-UCC, Catalunya 08500, Spain
| | - Rafael Rosell
- Translational Cancer Research Unit, Instituto Oncológico Dr Rosell, Quirón Dexeus University Hospital, Barcelona 08028, Spain; Cancer Biology & Precision Medicine Program, Catalan Institute of Oncology, Germans Trias I Pujol Health Sciences Institute and Hospital, Campus Can Ruti, Badalona, 08916, Spain; Fundación Molecular Oncology Research, Barcelona 08028, Spain
| |
Collapse
|
19
|
Lomash RM, Gu X, Youle RJ, Lu W, Roche KW. Neurolastin, a Dynamin Family GTPase, Regulates Excitatory Synapses and Spine Density. Cell Rep 2015. [PMID: 26212327 DOI: 10.1016/j.celrep.2015.06.064] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
Membrane trafficking and spinogenesis contribute significantly to changes in synaptic strength during development and in various paradigms of synaptic plasticity. GTPases of the dynamin family are key players regulating membrane trafficking. Here, we identify a brain-specific dynamin family GTPase, neurolastin (RNF112/Znf179), with closest homology to atlastin. We demonstrate that neurolastin has functional GTPase and RING domains, making it a unique protein identified with this multi-enzymatic domain organization. We also show that neurolastin is a peripheral membrane protein that localizes to endosomes and affects endosomal membrane dynamics via its RING domain. In addition, neurolastin knockout mice have fewer dendritic spines, and rescue of the wild-type phenotype requires both the GTPase and RING domains. Furthermore, we find fewer functional synapses and reduced paired pulse facilitation in neurolastin knockout mice. Thus, we identify neurolastin as a dynamin family GTPase that affects endosome size and spine density.
Collapse
Affiliation(s)
- Richa Madan Lomash
- Receptor Biology Section, National Institute of Neurological Disorders and Stroke (NINDS), NIH, Bethesda, MD 20892, USA
| | - Xinglong Gu
- Synapse and Neural Circuit Research Unit, NINDS, NIH, Bethesda, MD 20892, USA
| | - Richard J Youle
- Surgical Neurology Branch, NINDS, NIH, Bethesda, MD 20892, USA
| | - Wei Lu
- Synapse and Neural Circuit Research Unit, NINDS, NIH, Bethesda, MD 20892, USA
| | - Katherine W Roche
- Receptor Biology Section, National Institute of Neurological Disorders and Stroke (NINDS), NIH, Bethesda, MD 20892, USA.
| |
Collapse
|
20
|
Silva I, Conceição N. Cloning, characterization and analysis of the 5′ regulatory region of zebrafish xpd gene. Comp Biochem Physiol B Biochem Mol Biol 2015; 185:47-53. [DOI: 10.1016/j.cbpb.2015.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 03/24/2015] [Accepted: 04/01/2015] [Indexed: 12/22/2022]
|
21
|
Hui AWH, Lau HW, Cao CY, Zhou JW, Lai PBS, Tsui SKW. Downregulation of PLZF in human hepatocellular carcinoma and its clinical significance. Oncol Rep 2014; 33:397-402. [PMID: 25369784 DOI: 10.3892/or.2014.3578] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 09/10/2014] [Indexed: 11/06/2022] Open
Abstract
Promyelocytic leukemia zinc finger (PLZF) acts as a tumor-suppressor gene in a series of cancers including prostate, melanoma, colon cancer and leukemia. However, its role in hepatocellular carcinoma (HCC) has not yet been illustrated. The present study aimed to investigate the expression and epigenetic regulation of PLZF as well as its clinical significance in HCC. We found that the expression of PLZF was significantly downregulated in HCC samples at both the RNA level (P<0.001) and protein level compared with these levels in adjacent normal tissues. The relative expression level of PLZF was also positively correlated with the ALP level (P=0.026) noted in the HCC patients. However, hypermethylation was only detected in one out of 5 paired HCC samples, indicating that methylation of the selected promoter region (from -1702 to -1388) may not be the major regulatory mechanism for the downregulation of PLZF in HCC. A receiver operating characteristic (ROC) curve was created to evaluate the diagnostic value for differentiating between HCC and benign diseases. The area under the ROC curve (AUC) for indicating the value of PLZF as an HCC biomarker was 0.794 (95% CI, 0.697-0.892; P<0.001). Taken together, our results suggest that PLZF may play an important role in HCC development and may be a potential biomarker for the diagnosis of HCC.
Collapse
Affiliation(s)
- Anselm Wang-Hei Hui
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, SAR, P.R. China
| | - Hon-Wai Lau
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, SAR, P.R. China
| | - Cyanne Ye Cao
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, SAR, P.R. China
| | - Jun-Wei Zhou
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, SAR, P.R. China
| | - Paul Bo-San Lai
- Department of Surgery, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, SAR, P.R. China
| | - Stephen Kwok-Wing Tsui
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, SAR, P.R. China
| |
Collapse
|
22
|
Increase of zinc finger protein 179 in response to CCAAT/enhancer binding protein delta conferring an antiapoptotic effect in astrocytes of Alzheimer's disease. Mol Neurobiol 2014; 51:370-82. [PMID: 24788683 PMCID: PMC4309906 DOI: 10.1007/s12035-014-8714-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Accepted: 04/10/2014] [Indexed: 01/27/2023]
Abstract
Reactive astrogliosis is a cellular manifestation of neuroinflammation and occurs in response to all forms and severities of the central nervous system (CNS)'s injury and disease. Both astroglial proliferation and antiapoptotic processes are aspects of astrogliosis. However, the underlying mechanism of this response remains poorly understood. In addition, little is known about why activated astrocytes are more resistant to stress and inflammation. CCAAT/enhancer binding protein delta (CEBPD) is a transcription factor found in activated astrocytes that surround β-amyloid plaques. In this study, we found that astrocytes activation was attenuated in the cortex and hippocampus of APPswe/PS1 E9 (AppTg)/Cebpd (-/-)mice. Furthermore, an increase in apoptotic astrocytes was observed in AppTg/Cebpd (-/-)mice, suggesting that CEBPD plays a functional role in enhancing the antiapoptotic ability of astrocytes. We found that Zinc Finger Protein 179 (ZNF179) was a CEBPD-regulated gene that played an antiapoptotic, but not proliferative, role in astrocytes. The transcriptions of the proapoptotic genes, insulin-like growth factor binding protein 3 (IGFBP3) and BCL2-interacting killer (BIK), were suppressed by ZNF179 via its interaction with the promyelocytic leukemia zinc finger (PLZF) protein in astrocytes. This study provides the first evidence that ZNF179, PLZF, IGFBP3, and BIK contributed to the novel CEBPD-induced antiapoptotic feature of astrocytes.
Collapse
|