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Poudel BH, Koks S. The whole transcriptome analysis using FFPE and fresh tissue samples identifies the molecular fingerprint of osteosarcoma. Exp Biol Med (Maywood) 2024; 249:10161. [PMID: 38966281 PMCID: PMC11222325 DOI: 10.3389/ebm.2024.10161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 05/29/2024] [Indexed: 07/06/2024] Open
Abstract
Osteosarcoma is a form of bone cancer that predominantly impacts osteoblasts, the cells responsible for creating fresh bone tissue. Typical indications include bone pain, inflammation, sensitivity, mobility constraints, and fractures. Utilising imaging techniques such as X-rays, MRI scans, and CT scans can provide insights into the size and location of the tumour. Additionally, a biopsy is employed to confirm the diagnosis. Analysing genes with distinct expression patterns unique to osteosarcoma can be valuable for early detection and the development of effective treatment approaches. In this research, we comprehensively examined the entire transcriptome and pinpointed genes with altered expression profiles specific to osteosarcoma. The study mainly aimed to identify the molecular fingerprint of osteosarcoma. In this study, we processed 90 FFPE samples from PathWest with an almost equal number of osteosarcoma and healthy tissues. RNA was extracted from Paraffin-embedded tissue; RNA was sequenced, the sequencing data was analysed, and gene expression was compared to the healthy samples of the same patients. Differentially expressed genes in osteosarcoma-derived samples were identified, and the functions of those genes were explored. This result was combined with our previous studies based on FFPE and fresh samples to perform a meta-analysis. We identified 1,500 identical differentially expressed genes in PathWest osteosarcoma samples compared to normal tissue samples of the same patients. Meta-analysis with combined fresh tissue samples identified 530 differentially expressed genes. IFITM5, MMP13, PANX3, and MAGEA6 were some of the most overexpressed genes in osteosarcoma samples, while SLC4A1, HBA1, HBB, AQP7 genes were some of the top downregulated genes. Through the meta-analysis, 530 differentially expressed genes were identified to be identical among FFPE (105 FFPE samples) and 36 fresh bone samples. Deconvolution analysis with single-cell RNAseq data confirmed the presence of specific cell clusters in FFPE samples. We propose these 530 DEGs as a molecular fingerprint of osteosarcoma.
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Affiliation(s)
- Bal Hari Poudel
- Center for Molecular Medicine and Innovative Therapy, Murdoch University, Perth, WA, Australia
- Perron Institute of Neurological Diseases, Perth, WA, Australia
- Central Department of Biotechnology, Tribhuvan University, Kathmandu, Nepal
| | - Sulev Koks
- Center for Molecular Medicine and Innovative Therapy, Murdoch University, Perth, WA, Australia
- Perron Institute of Neurological Diseases, Perth, WA, Australia
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2
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Xu M, Wang D, Li K, Ma T, Wang Y, Xia B. TMEM119 (c.G143A, p.S48L) Mutation Is Involved in Primary Failure of Eruption by Attenuating Glycolysis-Mediated Osteogenesis. Int J Mol Sci 2024; 25:2821. [PMID: 38474068 DOI: 10.3390/ijms25052821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/23/2024] [Accepted: 02/25/2024] [Indexed: 03/14/2024] Open
Abstract
Primary failure of eruption (PFE) is a rare oral disease with an incidence rate of 0.06%. It is characterized by abnormal eruption mechanisms that disrupt tooth eruption. The underlying pathogenic genetic variant and mechanism of PFE remain largely unknown. The purpose of this study was to explore the role of a novel transmembrane protein 119 (TMEM119) mutation in two PFE patients in a Chinese family. Information collection was performed on the family with a diagnosis of PFE, and blood samples from patients and healthy family members were extracted. Whole-exome sequencing was performed. Bioinformatics analysis revealed that a heterozygous variant in the TMEM119 gene (c.G143A, p.S48L) was a disease-associated mutation in this family. Recombinant pcDNA3.1 plasmid-containing wild-type and mutant TMEM119 expression cassettes were successfully constructed and transfected into MC3T3-E1 cells, respectively. The results of in vitro analysis suggested that the subcellular distribution of the TMEM119 protein was transferred from the cell cytoplasm to the nucleus, and the ability of cells to proliferate and migrate as well as glycolytic and mineralized capacities were reduced after mutation. Furthermore, rescue assays showed that activating transcription factor 4 (ATF4) overexpression rescued the attenuated glycolysis and mineralization ability of cells. Results of in vivo analysis demonstrated that TMEM119 was mainly expressed in the alveolar bone around the mouse molar germs, and the expression level increased with tooth eruption, demonstrated using immunohistochemistry and immunofluorescence. Collectively, the novel TMEM119 mutation is potentially pathogenic in the PFE family by affecting the glucose metabolism and mineralized function of osteoblasts, including interaction with ATF4. Our findings broaden the gene mutation spectrum of PFE and further elucidate the pathogenic mechanism of PFE.
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Affiliation(s)
- Mindi Xu
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Haidian District, Beijing 100081, China
- National Clinical Research Center for Oral Diseases, Peking University School and Hospital of Stomatology, Haidian District, Beijing 100081, China
| | - Dandan Wang
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Haidian District, Beijing 100081, China
| | - Kefan Li
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Haidian District, Beijing 100081, China
| | - Tianyu Ma
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Haidian District, Beijing 100081, China
| | - Yixiang Wang
- Central Laboratory, Peking University School and Hospital of Stomatology, Haidian District, Beijing 100081, China
| | - Bin Xia
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Haidian District, Beijing 100081, China
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Herrera-Quiterio GA, Encarnación-Guevara S. The transmembrane proteins (TMEM) and their role in cell proliferation, migration, invasion, and epithelial-mesenchymal transition in cancer. Front Oncol 2023; 13:1244740. [PMID: 37936608 PMCID: PMC10627164 DOI: 10.3389/fonc.2023.1244740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 09/11/2023] [Indexed: 11/09/2023] Open
Abstract
Transmembrane proteins (TMEM) are located in the different biological membranes of the cell and have at least one passage through these cellular compartments. TMEM proteins carry out a wide variety of functions necessary to maintain cell homeostasis TMEM165 participates in glycosylation protein, TMEM88 in the development of cardiomyocytes, TMEM45A in epidermal keratinization, and TMEM74 regulating autophagy. However, for many TMEM proteins, their physiological function remains unknown. The role of these proteins is being recently investigated in cancer since transcriptomic and proteomic studies have revealed that exits differential expression of TMEM proteins in different neoplasms concerning cancer-free tissues. Among the cellular processes in which TMEM proteins have been involved in cancer are the promotion or suppression of cell proliferation, epithelial-mesenchymal transition, invasion, migration, intravasation/extravasation, metastasis, modulation of the immune response, and response to antineoplastic drugs. Inclusive data suggests that the participation of TMEM proteins in these cellular events could be carried out through involvement in different cell signaling pathways. However, the exact mechanisms not clear. This review shows a description of the involvement of TMEM proteins that promote or decrease cell proliferation, migration, and invasion in cancer cells, describes those TMEM proteins for which both a tumor suppressor and a tumor promoter role have been identified, depending on the type of cancer in which the protein is expressed. As well as some TMEM proteins involved in chemoresistance. A better characterization of these proteins is required to improve the understanding of the tumors in which their expression and function are altered; in addition to improving the understanding of the role of these proteins in cancer will show those TMEM proteins be potential candidates as biomarkers of response to chemotherapy or prognostic biomarkers or as potential therapeutic targets in cancer.
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Affiliation(s)
| | - Sergio Encarnación-Guevara
- Laboratorio de Proteómica, Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico
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Zheng J, Wang X, Li J, Wu Y, Chang J, Xin J, Wang M, Wang T, Wei Q, Wang M, Zhang R. Rare variants confer shared susceptibility to gastrointestinal tract cancer risk. Front Oncol 2023; 13:1161639. [PMID: 37483484 PMCID: PMC10358854 DOI: 10.3389/fonc.2023.1161639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 06/12/2023] [Indexed: 07/25/2023] Open
Abstract
Background Cancers arising within the gastrointestinal tract are complex disorders involving genetic events that cause the conversion of normal tissue to premalignant lesions and malignancy. Shared genetic features are reported in epithelial-based gastrointestinal cancers which indicate common susceptibility among this group of malignancies. In addition, the contribution of rare variants may constitute parts of genetic susceptibility. Methods A cross-cancer analysis of 38,171 shared rare genetic variants from genome-wide association assays was conducted, which included data from 3,194 cases and 1,455 controls across three cancer sites (esophageal, gastric and colorectal). The SNP-level association was performed by multivariate logistic regression analyses for single cancer, followed by association analysis for SubSETs (ASSET) to adjust the bias of overlapping controls. Gene-level analyses were conducted by SKAT-O, with multiple comparison adjustments by false discovery rate (FDR). Based on the significant genes indicated by SKATO analysis, pathways analysis was conducted using Gene Ontology (GO), the Kyoto Encyclopedia of Genes and Genomes (KEGG) and Reactome databases. Results Meta-analysis in three gastrointestinal (GI) cancers identified 13 novel susceptibility loci that reached genome-wide significance (P ASSET< 5×10-8). SKAT-O analysis revealed EXOC6, LRP5L and MIR1263/LINC01324 to be significant genes shared by GI cancers (P adj<0.05, P FDR<0.05). Furthermore, GO pathway analysis identified significant enrichment of synaptic transmission and neuron development pathways shared by all three cancer types. Conclusion Rare variants and the corresponding genes potentially contribute to shared susceptibility in different GI cancer types. The discovery of these novel variants and genes offers new insights for the carcinogenic mechanisms and missing heritability of GI cancers.
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Affiliation(s)
- Ji Zheng
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Xin Wang
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jingrao Li
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Yuanna Wu
- Department of Biological Sciences, Dedman College of Humanities and Sciences, Southern Methodist University, Dallas, TX, United States
| | - Jiang Chang
- Department of Health Toxicology, Key Laboratory for Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Junyi Xin
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, School of Public Health, Nanjing Medical University, Nanjing, China
- Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Meilin Wang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, School of Public Health, Nanjing Medical University, Nanjing, China
- Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, China
| | - Tianpei Wang
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Qingyi Wei
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, United States
- Department of Population Health Sciences, Duke University School of Medicine, Durham, NC, United States
| | - Mengyun Wang
- Yiwu Research Institute of Fudan University, Yiwu, Zhejiang, China
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai Medical College, Shanghai, China
| | - Ruoxin Zhang
- Department of Epidemiology, School of Public Health, Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
- Yiwu Research Institute of Fudan University, Yiwu, Zhejiang, China
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai Medical College, Shanghai, China
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Jo S, Jin BJ, Lee SH, Jo HR, Park JM, Hwang KG, Rho M, Kim TH, Cho SH. Eosinophil-derived interferon-γ drives transmembrane protein 119-induced new bone formation in chronic rhinosinusitis with nasal polyps. Int Forum Allergy Rhinol 2023; 13:242-254. [PMID: 35984636 DOI: 10.1002/alr.23076] [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: 05/17/2022] [Revised: 07/17/2022] [Accepted: 08/15/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND Chronic rhinosinusitis with nasal polyps (CRSwNP) is a chronic inflammatory sinonasal disease characterized by eosinophilic infiltration and new bone formation. These changes indicate the severity and prognosis of CRSwNP and may be closely linked to each other. METHODS We performed RNA sequencing to screen specific osteogenic molecules and validated transmembrane protein 119 (TMEM119) expression by quantitative polymerase chain reaction (qPCR) and immunohistochemistry analyses. TMEM119 knockdown was performed to observe the downregulation of bone mineralization. We validated the bone-forming activity of interferon-γ (IFN-γ) and its signaling pathways in cultured primary sinus bone cells. Cellular sources of IFN-γ were identified using immunohistochemistry and immunofluorescence analyses. Interleukin-4-eosinophil-IFN-γ axis and the effect of dupilumab were investigated in Eol-1 cells. RESULTS We observed elevated IFN-γ levels and eosinophils in the nasal fluid and predominantly eosinophil-derived IFN-γ in the sinus mucosa of patients with CRSwNP. TMEM119 expression and bone-forming activities were increased in the osteitic and primary sinus bone cells of CRSwNP. IFN-γ treatment enhanced bone mineralization and TMEM119 expression via signal transducer and activator of transcription 1 (STAT1) signaling. Moreover, TMEM119 knockdown inhibited sinus bone cell mineralization and dupilumab attenuated IFN-γ secretion by IL4-stimulated Eol-1 cells. CONCLUSION Eosinophil-derived IFN-γ promotes the bone-forming activities of sinus bone cells via the STAT1-TMEM119 signaling pathway. Interleukin-4-eosinophil-IFN-γ axis may be crucial for TMEM119-mediated new bone formation in CRSwNP.
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Affiliation(s)
- Sungsin Jo
- Hanyang University Institute for Rheumatology Research (HYIRR), Seoul, Republic of Korea
| | - Bong Joon Jin
- Department of Otorhinolaryngology-Head and Neck Surgery, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Seung Hoon Lee
- Hanyang University Institute for Rheumatology Research (HYIRR), Seoul, Republic of Korea
| | - Hye-Ryeong Jo
- Hanyang University Institute for Rheumatology Research (HYIRR), Seoul, Republic of Korea
| | - Joo Mi Park
- Hanyang University Institute for Rheumatology Research (HYIRR), Seoul, Republic of Korea
| | - Kyung-Gyun Hwang
- Division of Oral and Maxillofacial Surgery, Department of Dentistry, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - Mina Rho
- Department of Computer Science, Hanyang University, Seoul, Republic of Korea
| | - Tae-Hwan Kim
- Hanyang University Institute for Rheumatology Research (HYIRR), Seoul, Republic of Korea.,Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
| | - Seok Hyun Cho
- Department of Otorhinolaryngology-Head and Neck Surgery, Hanyang University College of Medicine, Seoul, Republic of Korea
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Xie M, Dai H, Gu Q, Xiao C, Wang H, Lei Y, Wu C, Li X, Lin B, Li S. Identification of genes contributing to cisplatin resistance in osteosarcoma cells. FEBS Open Bio 2022; 13:164-173. [PMID: 36408691 PMCID: PMC9808595 DOI: 10.1002/2211-5463.13524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 11/08/2022] [Accepted: 11/18/2022] [Indexed: 11/22/2022] Open
Abstract
Osteosarcomas are prevalent in children and young adults and have a high recurrence rate. Cisplatin, doxorubicin, and methotrexate are common adjuvant chemotherapy drugs for treatment of osteosarcoma, but multidrug resistance is a growing problem. Therefore, understanding the molecular mechanisms of chemotherapy resistance in osteosarcoma cells is crucial for developing new therapeutic approaches and ultimately improving the prognosis of osteosarcoma patients. To identify genes associated with cisplatin resistance in osteosarcoma, we screened a large-scale mutant library generated by transfecting human osteosarcoma cells with a piggyBac (PB) transposon-based gene activation vector. Several candidate genes were identified by using Splinkerette-PCR paired with Next Generation Sequencing. We created a disease-free survival predictor model, which includes ZNF720, REEP3, CNNM2, and CGREF1, using TARGET (Therapeutically Applicable Research to Generate Effective Treatments) datasets. Additionally, the results of our enrichment analysis between the Four_genes_high group and Low_group suggested that these four genes may participate in cisplatin resistance in osteosarcoma through cross talk between various signaling pathways, especially the signaling pathway related to bone formation. These data may help guide future studies into chemotherapy for osteosarcoma.
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Affiliation(s)
- Mingzhong Xie
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Haoping Dai
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Qingwen Gu
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Changming Xiao
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Haozhong Wang
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Yang Lei
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Chunxiao Wu
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Xuening Li
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Birong Lin
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
| | - Sen Li
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical UniversityLuzhouChina
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7
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A systematic characterization of microglia-like cell occurrence during retinal organoid differentiation. iScience 2022; 25:104580. [PMID: 35789843 PMCID: PMC9250027 DOI: 10.1016/j.isci.2022.104580] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 05/09/2022] [Accepted: 06/07/2022] [Indexed: 12/17/2022] Open
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Nie K, Cai M. SNAT2/SLC38A2 Confers the Stemness of Gastric Cancer Cells via Regulating Glutamine Level. Dig Dis Sci 2022; 67:2948-2956. [PMID: 34173116 DOI: 10.1007/s10620-021-07110-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 06/09/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Glutamine (Gln) is essential for cancer progression, however, few studies have been conducted to investigate the roles of Gln transporters in gastric cancer stem cells (CSCs). AIMS This work aims to explore the roles of Gln transporters in gastric cancer cell stemness. METHODS We collected spheres formed by gastric cancer (GC) cells through a 3-dimensional (3D) semisolid culture system which has been shown to hold CSC-like traits. Lentivirus package was used to construct GC cells with SNAT2 overexpression. Analysis of sphere-formation, stemness marker expression, ALDH activity were used to detect the effects of Gln transporters on GC cell stemness. Determination of reactive oxygen species (ROS) and Gln consumption combined with the methods analyzing cell stemness were performed to explore the underlying mechanisms. RESULTS Gln consumption was upregulated in GC spheres compared to the parental GC cells. The Gln transporter SNAT2 was highly expressed in GC spheres compared to that in the parental GC cells. SNAT2 overexpression significantly increased the Gln consumption in GC cells and increased the expression of stemness markers, sphere-formation ability and ALDH activity. Notably, SNAT2-mediated promoting effects on GC cell stemness were rescued by Gln deprivation. What's more, high expression of SNAT2 was associated with a poor GC patient survival through different online datasets. CONCLUSIONS SNAT2 can promote the stemness of GC cells in a Gln-dependent manner.
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Affiliation(s)
- Kai Nie
- Department of General Surgery, The Southeast Hospital Affiliated to Xiamen University, No. 269 Zhanghua Middle Road, Zhangzhou, 361022, Fujian, China
| | - Mingquan Cai
- Department of Medical Oncolog, The First Affiliated Hospital of Xiamen University, Siming District, 55 Zhenhai Road, Xiamen, 361003, Fujian, China.
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Guerrero-Juarez CF, Lee GH, Liu Y, Wang S, Karikomi M, Sha Y, Chow RY, Nguyen TTL, Iglesias VS, Aasi S, Drummond ML, Nie Q, Sarin K, Atwood SX. Single-cell analysis of human basal cell carcinoma reveals novel regulators of tumor growth and the tumor microenvironment. SCIENCE ADVANCES 2022; 8:eabm7981. [PMID: 35687691 PMCID: PMC9187229 DOI: 10.1126/sciadv.abm7981] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 04/27/2022] [Indexed: 05/27/2023]
Abstract
How basal cell carcinoma (BCC) interacts with its tumor microenvironment to promote growth is unclear. We use singe-cell RNA sequencing to define the human BCC ecosystem and discriminate between normal and malignant epithelial cells. We identify spatial biomarkers of tumors and their surrounding stroma that reinforce the heterogeneity of each tissue type. Combining pseudotime, RNA velocity-PAGA, cellular entropy, and regulon analysis in stromal cells reveals a cancer-specific rewiring of fibroblasts, where STAT1, TGF-β, and inflammatory signals induce a noncanonical WNT5A program that maintains the stromal inflammatory state. Cell-cell communication modeling suggests that tumors respond to the sudden burst of fibroblast-specific inflammatory signaling pathways by producing heat shock proteins, whose expression we validated in situ. Last, dose-dependent treatment with an HSP70 inhibitor suppresses in vitro vismodegib-resistant BCC cell growth, Hedgehog signaling, and in vivo tumor growth in a BCC mouse model, validating HSP70's essential role in tumor growth and reinforcing the critical nature of tumor microenvironment cross-talk in BCC progression.
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Affiliation(s)
- Christian F. Guerrero-Juarez
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA
- Department of Mathematics, University of California, Irvine, Irvine, CA 92697, USA
- NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA 92697, USA
- Center for Complex Biological Systems, University of California, Irvine, Irvine, CA 92697, USA
| | - Gun Ho Lee
- Department of Dermatology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Yingzi Liu
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA
- NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA 92697, USA
| | - Shuxiong Wang
- Department of Mathematics, University of California, Irvine, Irvine, CA 92697, USA
- NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA 92697, USA
| | - Matthew Karikomi
- Department of Mathematics, University of California, Irvine, Irvine, CA 92697, USA
| | - Yutong Sha
- Department of Mathematics, University of California, Irvine, Irvine, CA 92697, USA
| | - Rachel Y. Chow
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA
| | - Tuyen T. L. Nguyen
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA
| | - Venus Sosa Iglesias
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA
| | - Sumaira Aasi
- Department of Dermatology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Michael L. Drummond
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA
| | - Qing Nie
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA
- Department of Mathematics, University of California, Irvine, Irvine, CA 92697, USA
- NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA 92697, USA
- Center for Complex Biological Systems, University of California, Irvine, Irvine, CA 92697, USA
| | - Kavita Sarin
- Department of Dermatology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Scott X. Atwood
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA
- NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA 92697, USA
- Center for Complex Biological Systems, University of California, Irvine, Irvine, CA 92697, USA
- Department of Dermatology, University of California, Irvine, Irvine, CA 92697, USA
- Chao Family Comprehensive Cancer Center, University of California, Irvine, Irvine, CA 92697, USA
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Hynek R, Michalus I, Cejnar P, Šantrůček J, Seidlová S, Kučková Š, Sázelová P, Kašička V. In-bone protein digestion followed by LC-MS/MS peptide analysis as a new way towards the routine proteomic characterization of human maxillary and mandibular bone tissue in oral surgery. Electrophoresis 2021; 42:2552-2562. [PMID: 34453862 DOI: 10.1002/elps.202100211] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 08/12/2021] [Accepted: 08/26/2021] [Indexed: 11/11/2022]
Abstract
Proteomic characterization of alveolar bones in oral surgery represents an analytical challenge due to their insoluble character. The implementation of a straightforward technique could lead to the routine use of proteomics in this field. This work thus developed a simple technique for the characterization of bone tissue for human maxillary and mandibular bones. It is based on the direct in-bone tryptic digestion of proteins in both healthy and pathological human maxillary and mandibular bone samples. The released peptides were then identified by the LC-MS/MS. Using this approach, a total of 1120 proteins were identified in the maxillary bone and 1151 proteins in the mandibular bone. The subsequent partial least squares-discrimination analysis (PLS-DA) of protein data made it possible to reach 100% discrimination between the samples of healthy alveolar bones and those of the bone tissue surrounding the inflammatory focus. These results indicate that the in-bone protein digestion followed by the LC-MS/MS and subsequent statistical analysis can provide a deeper insight into the field of oral surgery at the molecular level. Furthermore, it could also have a diagnostic potential in the differentiation between the proteomic patterns of healthy and pathological alveolar bone tissue. Data are available via ProteomeXchange with the identifier PXD026775.
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Affiliation(s)
- Radovan Hynek
- Department of Biochemistry and Microbiology, University of Chemistry and Technology, Prague, Technická 5, Prague 6, 166 28, Czech Republic
| | - Iva Michalus
- First Faculty of Medicine, Charles University, Kateřinská 32, Prague 2, 121 08, Czech Republic
| | - Pavel Cejnar
- Department of Computing and Control Engineering, University of Chemistry and Technology, Prague, Technická 5, Prague 6, 166 28, Czech Republic
| | - Jiří Šantrůček
- Department of Biochemistry and Microbiology, University of Chemistry and Technology, Prague, Technická 5, Prague 6, 166 28, Czech Republic
| | - Sabina Seidlová
- Department of Biochemistry and Microbiology, University of Chemistry and Technology, Prague, Technická 5, Prague 6, 166 28, Czech Republic
| | - Štěpánka Kučková
- Department of Biochemistry and Microbiology, University of Chemistry and Technology, Prague, Technická 5, Prague 6, 166 28, Czech Republic
| | - Petra Sázelová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo 542/2, Prague 6, 166 10, Czech Republic
| | - Václav Kašička
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo 542/2, Prague 6, 166 10, Czech Republic
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Yang B, Wang F, Zheng G. Transmembrane protein TMEM119 facilitates the stemness of breast cancer cells by activating Wnt/β-catenin pathway. Bioengineered 2021; 12:4856-4867. [PMID: 34334123 PMCID: PMC8806430 DOI: 10.1080/21655979.2021.1960464] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The effects of transmembrane protein 119 (TMEM119) on breast cancer progression have not been elucidated. This study aims to investigate the roles of TMEM119 in breast cancer progression. Clinical samples and online datasets were used to determine TMEM119 expression and its correlation between patients’ survival. Wound healing, transwell invasion, mammary spheroid formation, and ALDH activity were performed to detect the effects of TMEM119. RNA-sequencing, Luciferase report analysis, Co-IP, and ChIP analysis were constructed to reveal the underlying mechanisms. We found that TMEM119 was highly expressed in breast cancer tissues and cells compared to that in normal tissues and cells. Additionally, TMEM119 expression was negatively correlated with the survival of breast cancer patients. TMEM119 knockdown reduced the expression of stemness markers, mammary spheroid-formation ability and ALDH activity. RNA-sequencing analysis indicated that Wnt/β-catenin signaling was enriched in cells with TMEM119 overexpression. Further co-IP experiments indicated that TMEM119 interacted with β-catenin and maintained its protein stability. Conversely, β-catenin directly bound to TMEM119 gene promoter and thus increased TMEM119 transcriptional activity and its expression. Finally, we demonstrated that TMEM119-mediated effects depended on Wnt/β-catenin signaling. Thus, this work reveals a novel TMEM119-β-catenin positive feedback loop essential for breast cancer cell stemness.
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Affiliation(s)
- Ben Yang
- Department of Breast Surgery, Shandong Cancer Hospital, the Cancer Hospital Affiliated to Shandong First Medical University, Jinan City, Shandong Province, China
| | - Fengling Wang
- Department of Breast Surgery, Shandong Cancer Hospital, the Cancer Hospital Affiliated to Shandong First Medical University, Jinan City, Shandong Province, China
| | - Gang Zheng
- Department of Breast Surgery, Shandong Cancer Hospital, the Cancer Hospital Affiliated to Shandong First Medical University, Jinan City, Shandong Province, China
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12
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Sun T, Bi F, Liu Z, Yang Q. TMEM119 facilitates ovarian cancer cell proliferation, invasion, and migration via the PDGFRB/PI3K/AKT signaling pathway. J Transl Med 2021; 19:111. [PMID: 33731124 PMCID: PMC7968362 DOI: 10.1186/s12967-021-02781-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 03/08/2021] [Indexed: 12/28/2022] Open
Abstract
Background Ovarian cancer (OV) is the deadliest gynecological cancer. Transmembrane protein 119 (TMEM119) has been reported as oncogene in several human cancers. However, the function of TMEM119 in OV is still poorly known. Methods Western blot and qRT-PCR were used to analyze TMEM119 levels. Transwell assays, wound healing assays, CCK-8 assays and EdU cell proliferation assays were designed to explore the function and potential mechanism of TMEM119 in malignant biological behaviors in OV. Results TMEM119 was observed to be overexpressed in OV tissues and associated with poor survival in OV patients. Knockdown and overexpression experiments demonstrated that TMEM119 promoted proliferation, invasion, and migration in OV cells in vitro. TMEM119 mRNA expression was related to the pathways of focal adhesion according to Gene Set Enrichment Analyses and was correlated with the mRNA expression level of platelet-derived growth factor receptor beta (PDGFRB). TMEM119 exerted oncogenic effects partially by regulating the expression of PDGFRB and by activating the PI3K/AKT signaling pathway. Conclusions Collectively, our findings highlight the potential role of TMEM119 in the malignant biological behavior of OV, which may serve as a potential biomarker and a therapeutic candidate for OV. Supplementary Information The online version contains supplementary material available at 10.1186/s12967-021-02781-x.
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Affiliation(s)
- Tianshui Sun
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, No. 36, Sanhao Street, Heping District, Shenyang, 110004, China
| | - Fangfang Bi
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, No. 36, Sanhao Street, Heping District, Shenyang, 110004, China
| | - Zhuonan Liu
- Department of Urology, First Hospital of China Medical University, Shenyang, China
| | - Qing Yang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, No. 36, Sanhao Street, Heping District, Shenyang, 110004, China.
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Peng D, Lin B, Xie M, Zhang P, Guo Q, Li Q, Gu Q, Yang S, Sen L. Histone demethylase KDM5A promotes tumorigenesis of osteosarcoma tumor. Cell Death Discov 2021; 7:9. [PMID: 33436536 PMCID: PMC7803953 DOI: 10.1038/s41420-020-00396-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 11/10/2020] [Accepted: 12/15/2020] [Indexed: 12/14/2022] Open
Abstract
Osteosarcoma is a primary bone malignancy with a high rate of recurrence and poorer prognosis. Therefore, it is of vital importance to explore novel prognostic molecular biomarkers and targets for more effective therapeutic approaches. Previous studies showed that histone demethylase KDM5A can increase the proliferation and metastasis of several cancers. However, the function of KDM5A in the carcinogenesis of osteosarcoma is not clear. In the current study, KDM5A was highly expressed in osteosarcoma than adjacent normal tissue. Knockdown of KDM5A suppressed osteosarcoma cell proliferation and induced apoptosis. Moreover, knockdown of KDM5A could increase the expression level of P27 (cell-cycle inhibitor) and decrease the expression of Cyclin D1. Furthermore, after knockout of KDM5A in osteosarcoma cells by CRISPR/Cas9 system, the tumor size and growth speed were inhibited in tumor-bearing nude mice. RNA-Seq of KDM5A-KO cells indicated that interferon, epithelial–mesenchymal transition (EMT), IL6/JAK/STAT3, and TNF-α/NF-κB pathway were likely involved in the regulation of osteosarcoma cell viability. Taken together, our research established a role of KDM5A in osteosarcoma tumorigenesis and progression.
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Affiliation(s)
- Daohu Peng
- Hospital (T.C.M) Affiliated to Southwest Medical University, 182 Chunhui Road, Longmatan District, 64600, Luzhou City, Sichuan, P. R. China
| | - Birong Lin
- Hospital (T.C.M) Affiliated to Southwest Medical University, 182 Chunhui Road, Longmatan District, 64600, Luzhou City, Sichuan, P. R. China
| | - Mingzhong Xie
- Hospital (T.C.M) Affiliated to Southwest Medical University, 182 Chunhui Road, Longmatan District, 64600, Luzhou City, Sichuan, P. R. China
| | - Ping Zhang
- Hospital (T.C.M) Affiliated to Southwest Medical University, 182 Chunhui Road, Longmatan District, 64600, Luzhou City, Sichuan, P. R. China
| | - QingXi Guo
- The affiliated hospital of Southwest Medical University, 25 Taiping Street, Jiangyang District, 646015, Luzhou City, Sichuan, P. R. China
| | - Qian Li
- Hospital (T.C.M) Affiliated to Southwest Medical University, 182 Chunhui Road, Longmatan District, 64600, Luzhou City, Sichuan, P. R. China
| | - Qinwen Gu
- Hospital (T.C.M) Affiliated to Southwest Medical University, 182 Chunhui Road, Longmatan District, 64600, Luzhou City, Sichuan, P. R. China
| | - Sijin Yang
- Hospital (T.C.M) Affiliated to Southwest Medical University, 182 Chunhui Road, Longmatan District, 64600, Luzhou City, Sichuan, P. R. China.
| | - Li Sen
- Hospital (T.C.M) Affiliated to Southwest Medical University, 182 Chunhui Road, Longmatan District, 64600, Luzhou City, Sichuan, P. R. China.
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Chen H, Pan R, Li H, Zhang W, Ren C, Lu Q, Chen H, Zhang X, Nie Y. CHRDL2 promotes osteosarcoma cell proliferation and metastasis through the BMP-9/PI3K/AKT pathway. Cell Biol Int 2021; 45:623-632. [PMID: 33245175 PMCID: PMC8049056 DOI: 10.1002/cbin.11507] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 10/13/2020] [Accepted: 11/21/2020] [Indexed: 12/11/2022]
Abstract
Various studies demonstrated that bone morphogenetic proteins (BMPs) and their antagonists contribute to the development of cancers. Chordin-like 2 (CHRDL2) is a member of BMP antagonists. However, the role and its relative mechanism of CHRDL2 in osteosarcoma remains unclear. In the present study, we demonstrated that the expression of CHRDL2 was significantly upregulated in osteosarcoma tissues and cell lines compared with adjacent tissues and human normal osteoblast. Inhibition of CHRDL2 decreased the proliferation and colony formation of osteosarcoma cells in vitro, as well as the migration and invasion. CHRDL2 overexpression induced the opposite effects. CHRDL2 can bind with BMP-9, thus decreasing BMP-9 expression and the combination to its receptor protein kinase ALK1. It was predicted that BMP-9 regulates PI3K/AKT pathways using gene set enrichment analysis. Inhibition of CHRDL2 decreased the activation of PI3K/AKT pathway, while overexpression of CHRDL2 upregulated the activation. Increasing the expression of BMP-9 reversed the effects of CHRDL2 overexpression on the activation of PI3K/AKT pathway, as well as the proliferation and metastasis of osteosarcoma cells. Take together, our present study revealed that CHRDL2 upregulated in osteosarcoma tissues and cell lines, and promoted osteosarcoma cell proliferation and metastasis through the BMP-9/PI3K/AKT pathway. CHRDL2 maybe an oncogene in osteosarcoma, as well as novel biomarker for the diagnosis of osteosarcoma.
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Affiliation(s)
- Houping Chen
- Department of Orthopedics, Guiyang Maternal and Child Health-Care Hospital, Guiyang, Guizhou, China
| | - Runsang Pan
- Department of Orthopedics, Guiyang Maternal and Child Health-Care Hospital, Guiyang, Guizhou, China
| | - Hao Li
- Department of Orthopedics, Guiyang Maternal and Child Health-Care Hospital, Guiyang, Guizhou, China
| | - Wenguang Zhang
- Department of Orthopedics, Guiyang Maternal and Child Health-Care Hospital, Guiyang, Guizhou, China
| | - Chong Ren
- Department of Orthopedics, Guiyang Maternal and Child Health-Care Hospital, Guiyang, Guizhou, China
| | - Qiaoying Lu
- Department of Orthopedics, Guiyang Maternal and Child Health-Care Hospital, Guiyang, Guizhou, China
| | - Hui Chen
- Central Laboratory, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Xiangyan Zhang
- Department of Respiration, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Yingjie Nie
- Central Laboratory, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
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15
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Spiteri AG, Wishart CL, King NJC. Immovable Object Meets Unstoppable Force? Dialogue Between Resident and Peripheral Myeloid Cells in the Inflamed Brain. Front Immunol 2020; 11:600822. [PMID: 33363542 PMCID: PMC7752943 DOI: 10.3389/fimmu.2020.600822] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 11/05/2020] [Indexed: 12/13/2022] Open
Abstract
Inflammation of the brain parenchyma is characteristic of neurodegenerative, autoimmune, and neuroinflammatory diseases. During this process, microglia, which populate the embryonic brain and become a permanent sentinel myeloid population, are inexorably joined by peripherally derived monocytes, recruited by the central nervous system. These cells can quickly adopt a morphology and immunophenotype similar to microglia. Both microglia and monocytes have been implicated in inducing, enhancing, and/or maintaining immune-mediated pathology and thus disease progression in a number of neuropathologies. For many years, experimental and analytical systems have failed to differentiate resident microglia from peripherally derived myeloid cells accurately. This has impeded our understanding of their precise functions in, and contributions to, these diseases, and hampered the development of novel treatments that could target specific cell subsets. Over the past decade, microglia have been investigated more intensively in the context of neuroimmunological research, fostering the development of more precise experimental systems. In light of our rapidly growing understanding of these cells, we discuss the differential origins of microglia and peripherally derived myeloid cells in the inflamed brain, with an analysis of the problems resolving these cell types phenotypically and morphologically, and highlight recent developments enabling more precise identification.
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Affiliation(s)
- Alanna G. Spiteri
- Discipline of Pathology, Faculty of Medicine and Health, School of Medical Sciences, The University of Sydney, Sydney, NSW, Australia
- Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
| | - Claire L. Wishart
- Discipline of Pathology, Faculty of Medicine and Health, School of Medical Sciences, The University of Sydney, Sydney, NSW, Australia
- Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
| | - Nicholas J. C. King
- Discipline of Pathology, Faculty of Medicine and Health, School of Medical Sciences, The University of Sydney, Sydney, NSW, Australia
- Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
- Sydney Cytometry Facility, The University of Sydney and Centenary Institute, Sydney, NSW, Australia
- Ramaciotti Facility for Human Systems Biology, The University of Sydney and Centenary Institute, Sydney, NSW, Australia
- Marie Bashir Institute for Infectious Diseases and Biosecurity (MBI), Faculty of Medicine and Health, Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
- Nano Institute, The University of Sydney, Sydney, NSW, Australia
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16
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Hu S, Togo J, Wang L, Wu Y, Yang D, Xu Y, Li L, Li B, Li M, Li J, Wang G, Zhang X, Niu C, Mazidi M, Douglas A, Speakman JR. Effects of dietary macronutrients and body composition on glucose homeostasis in mice. Natl Sci Rev 2020; 8:nwaa177. [PMID: 34691555 PMCID: PMC8288336 DOI: 10.1093/nsr/nwaa177] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 07/10/2020] [Accepted: 07/29/2020] [Indexed: 11/25/2022] Open
Abstract
As a major health issue, obesity is linked with elevated risk of type 2 diabetes. However, whether disrupted glucose homeostasis is due to altered body composition alone, or whether dietary macronutrients play an additional role, independent of their impact on body composition, remains unclear. We investigated the associations between macronutrients, body composition, blood hormones and glucose homeostasis. We fed C57BL/6N mice 29 different diets with variable macronutrients for 12 weeks. After 10 weeks, intraperitoneal glucose tolerance tests were performed. Generalized linear models were generated to evaluate the impacts of macronutrients, body composition and blood hormones on glucose homeostasis. The area under the glucose curve (AUC) was strongly associated with body fat mass, but not dietary macronutrients. AUC was significantly associated with fasting insulin levels. Six genes from transcriptomic analysis of epididymal white adipose tissue and subcutaneous white adipose tissue were significantly associated with AUC. These genes may encode secreted proteins that play important previously unanticipated roles in glucose homeostasis.
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Affiliation(s)
- Sumei Hu
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Jacques Togo
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Lu Wang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yingga Wu
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Dengbao Yang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yanchao Xu
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Li Li
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Baoguo Li
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Min Li
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Jianbo Li
- School of Basic Medical Sciences, University of Dali, Dali 671000, China
| | - Guanlin Wang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xueying Zhang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Chaoqun Niu
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Mohsen Mazidi
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Alex Douglas
- Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen AB24 2TZ, UK
| | - John R Speakman
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
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17
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Jing H, Wang S, Wang Y, Shen N, Gao XJ. Environmental contaminant ammonia triggers epithelial-to-mesenchymal transition-mediated jejunal fibrosis with the disassembly of epithelial cell-cell contacts in chicken. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 726:138686. [PMID: 32302811 DOI: 10.1016/j.scitotenv.2020.138686] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 04/11/2020] [Accepted: 04/11/2020] [Indexed: 06/11/2023]
Abstract
Ammonia (NH3) is an environmental contaminant that is causing increasing problems with human and animal health due to the development of poultry industry. There are limited studies on the effect of NH3 inhalation toxicity on the intestinal tract of animals, and underlying molecular mechanisms remain unclear. In the present study, we established a chicken model of NH3 aspiration-induced injury for 42 days and observed histopathological changes of the jejunum. Tandem mass tag-based quantitative proteomic analysis was applied to investigate changes in the protein profile in the jejunum tissue of chickens that were exposed to NH3. Overall, 48 significantly differentially expressed proteins (DEPs) were identified. GO and KEGG analyses revealed that most DEPs were closely related to epithelial-to-mesenchymal transition (EMT), cell-cell junctions, and fibrosis-related factors. Regarding fibrosis, type I collagen and fibronectin were significantly increased. With respect to EMT, epithelial marker proteins (such as E-cadherin and keratin) were repressed, while mesenchymal marker proteins (such as vimentin) were activated. Loss of epithelial cell-cell junctions (such as tight junctions, adherens junctions and desmosomes) were observed. Additionally, overexpression of transforming growth factor-beta (TGF-β) may play a key role in the EMT process and fibrosis. Taken together, these findings suggested that NH3 triggered the EMT and disassembly of epithelial cell-cell contacts, resulting in jejunal fibrosis that was mediated by TGF-β in chickens. The results of our study will contribute to provide a technical reference regarding the research methods of intestinal toxicity of NH3 and have largely regulatory implications for ecological risk assessment of human health.
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Affiliation(s)
- Hongyuan Jing
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Shengchen Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Yue Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Naiwen Shen
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Xue-Jiao Gao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China.
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18
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Su N, März S, Plagemann T, Cao J, Schnittler HJ, Eter N, Heiduschka P. Occurrence of Transmembrane Protein 119 in the Retina is Not Restricted to the Microglia: An Immunohistochemical Study. Transl Vis Sci Technol 2019; 8:29. [PMID: 31853425 PMCID: PMC6908137 DOI: 10.1167/tvst.8.6.29] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 10/11/2019] [Indexed: 12/20/2022] Open
Abstract
Purpose Recently, a new marker protein for microglial cells in the brain was postulated, transmembrane protein 119 (TMEM119), raising the hope for a new opportunity to reliably and unambiguously detect microglial cells in histologic sections. It was of interest whether TMEM119 also was a reliable microglial marker in the retina. Methods Anti-TMEM119 antibodies of two providers were used to label microglia in the murine retina, and labeling properties were compared to those of antibodies against Iba1 and CD11b. As an example of a pathologic situation, labeling for TMEM119 was also performed in eyes treated by an argon laser as an experimental model for choroidal neovascularization. Results TMEM119 immunoreactivity (IR) was found on microglial cells in the naïve retina. However, specificity and sensitivity of TMEM119 IR varied clearly depending on the source of the antibody, age of the mouse, and location of retinal microglia. After laser treatment, however, microglial cells lost their IR for TMEM119 at the site of the laser spot. Moreover, other cells became positive for TMEM119; for example, Müller cells. Conclusions TMEM119 is a useful marker for the microglia in the brain. However, retinal microglia shows variable IR for TMEM119, and the microglia is not the only cell showing TMEM IR. Therefore, TMEM119 appears not to be applicable as a general marker for the retinal microglia in pathologic situations. Translational Relevance Reliable detection and quantification of microglial cells is of high importance to study disease mechanisms and effects of therapeutic approaches in the retina.
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Affiliation(s)
- Nan Su
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Erqi District, Zhengzhou, People's Republic of China.,University of Münster Eye Hospital, Münster, Germany
| | - Sigrid März
- Institute of Anatomy and Vascular Biology, Münster, Germany
| | | | - Jiahui Cao
- Institute of Anatomy and Vascular Biology, Münster, Germany
| | | | - Nicole Eter
- University of Münster Eye Hospital, Münster, Germany
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van Wageningen TA, Vlaar E, Kooij G, Jongenelen CAM, Geurts JJG, van Dam AM. Regulation of microglial TMEM119 and P2RY12 immunoreactivity in multiple sclerosis white and grey matter lesions is dependent on their inflammatory environment. Acta Neuropathol Commun 2019; 7:206. [PMID: 31829283 PMCID: PMC6907356 DOI: 10.1186/s40478-019-0850-z] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 11/14/2019] [Indexed: 12/23/2022] Open
Abstract
Multiple Sclerosis (MS) is the most common cause of acquired neurological disability in young adults, pathologically characterized by leukocyte infiltration of the central nervous system, demyelination of the white and grey matter, and subsequent axonal loss. Microglia are proposed to play a role in MS lesion formation, however previous literature has not been able to distinguish infiltrated macrophages from microglia. Therefore, in this study we utilize the microglia-specific, homeostatic markers TMEM119 and P2RY12 to characterize their immunoreactivity in MS grey matter lesions in comparison to white matter lesions. Furthermore, we assessed the immunological status of the white and grey matter lesions, as well as the responsivity of human white and grey matter derived microglia to inflammatory mediators. We are the first to show that white and grey matter lesions in post-mortem human material differ in their immunoreactivity for the homeostatic microglia-specific markers TMEM119 and P2RY12. In particular, whereas immunoreactivity for TMEM119 and P2RY12 is decreased in the center of WMLs, immunoreactivity for both markers is not altered in GMLs. Based on data from post-mortem human microglia cultures, treated with IL-4 or IFNγ+LPS and on counts of CD3+ or CD20+ lymphocytes in lesions, we show that downregulation of TMEM119 and P2RY12 immunoreactivity in MS lesions corresponds with the presence of lymphocytes and lymphocyte-derived cytokines within the parenchyma but not in the meninges. Furthermore, the presence of TMEM119+ and partly P2RY12+ microglia in pre-active lesions as well as in the rim of active white and grey matter lesions, in addition to TMEM119+ and P2RY12+ rod-like microglia in subpial grey matter lesions suggest that blocking the entrance of lymphocytes into the CNS of MS patients may not interfere with all possible effects of TMEM119+ and P2RY12+ microglia in both white and grey matter MS lesions.
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20
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Expression of miR‑542‑3p in osteosarcoma with miRNA microarray data, and its potential signaling pathways. Mol Med Rep 2018; 19:974-983. [PMID: 30569116 PMCID: PMC6323234 DOI: 10.3892/mmr.2018.9761] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 11/15/2018] [Indexed: 12/16/2022] Open
Abstract
Osteosarcoma (OS) is the most common pediatric primary bone tumor, with high malignancy rates and a poor prognosis following metastasis. At present, the role of microRNA (miR)-542-3p in OS remains to be elucidated. The purpose of the present study was to investigate the expression level of miR-542-3p in OS, and its potential molecular mechanisms, via a bioinformatics analysis. First, the expression of miR-542-3p in OS based on the continuous variables of the Gene Expression Omnibus database and PubMed was studied. Subsequently, the potential target genes of miR-542-3p were predicted using gene expression profiles and bioinformatics software. On the basis of the Database for Annotation, Visualization and Integrated Discovery, version 6.8, a study of gene ontology (GO) enrichment and the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway knowledge base was conducted to explore the biological value of miR-542-3p in OS. Finally, the protein-protein interaction (PPI) network was completed using the STRING database. The expression of miR-542-3p in OS was revealed to be significantly higher compared with that in normal tissue. In total, 1,036 target genes of miR-542-3p were obtained. The results of the GO enrichment analysis revealed that the significant terms were ‘bone development’, ‘cell cycle arrest’ and ‘intracellular signal transduction’. The results of the KEGG analysis revealed the highlighted pathways that were targeted to miR-542-3p, including the sphingolipid signaling pathway (P=3.91×10−5), the phosphoinositide 3-kinase (PI3K)-AKT serine/threonine kinase (AKT) signaling pathway (P=3.17×10−5) and the insulin signaling pathway (P=1.04×10−5). The PPI network revealed eight hub genes: Ubiquitin-60S ribosomal protein L40, Ras-related C3 botulinum toxin substrate, mitogen-activated protein kinase 1, epidermal growth factor receptor, cystic fibrosis transmembrane conductance regulator, PI3K regulatory subunit 1, AKT1, and actin-related protein 2/3 complex subunit 1A, which may be the key target genes of miR-542-3p in OS. Taken together, these results have demonstrated that miR-542-3p was overexpressed in OS. The potential target genes and biological functions of miR-542-3p may provide novel insights into the differentially expressed genes that are involved in OS.
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Blombery P, Thompson E, Ryland GL, Joyce R, Byrne DJ, Khoo C, Lade S, Hertzberg M, Hapgood G, Marlton P, Deva A, Lindeman G, Fox S, Westerman D, Prince M. Frequent activating STAT3 mutations and novel recurrent genomic abnormalities detected in breast implant-associated anaplastic large cell lymphoma. Oncotarget 2018; 9:36126-36136. [PMID: 30546832 PMCID: PMC6281423 DOI: 10.18632/oncotarget.26308] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Accepted: 10/25/2018] [Indexed: 11/25/2022] Open
Abstract
Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is a rare form of T-cell lymphoma that occurs after implantation of breast prostheses. We performed comprehensive next generation sequencing based genomic characterization of 11 cases of BIA-ALCL including sequence variant detection on 180 genes frequently mutated in haematological malignancy, genome-wide copy number assessment, structural variant detection involving the T-cell receptor loci and TRB deep-sequencing. We observed sequence variants leading to JAK/STAT activation in 10 out of 11 patients. We also observed germline TP53 mutations in two cases. In addition we detected a recurrent copy number loss involving RPL5 as well as copy number amplifications involving TNFRSF11A [RANK] (in 2 cases), MYC, P2RX7, TMEM119 and PDGFRA. In summary, our comprehensive genomic characterisation of 11 cases of BIA-ALCL has provided insight into potential pathobiological mechanisms (JAK/STAT, MYC and TP53) as well as identifying targets for future therapeutic intervention (TNFRSF11A, PDGFRA) in this rare entity.
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Affiliation(s)
- Piers Blombery
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC, Australia
| | - Ella Thompson
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC, Australia
| | - Georgina L Ryland
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Rachel Joyce
- Stem Cells and Cancer Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, VIC, Australia
| | - David J Byrne
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Christine Khoo
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Stephen Lade
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Mark Hertzberg
- Department of Haematology, Prince of Wales Hospital, University of New South Wales, Randwick, NSW, Australia
| | - Greg Hapgood
- Department of Haematology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Paula Marlton
- Department of Haematology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - Anand Deva
- Surgical Infection Research Group, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, NSW, Australia
| | - Geoffrey Lindeman
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.,Stem Cells and Cancer Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia.,Department of Medicine, The University of Melbourne, Parkville, VIC, Australia
| | - Stephen Fox
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC, Australia
| | - David Westerman
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC, Australia
| | - Miles Prince
- Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC, Australia
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22
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Zhang B, Yu L, Han N, Hu Z, Wang S, Ding L, Jiang J. LINC01116 targets miR-520a-3p and affects IL6R to promote the proliferation and migration of osteosarcoma cells through the Jak-stat signaling pathway. Biomed Pharmacother 2018; 107:270-282. [PMID: 30098545 DOI: 10.1016/j.biopha.2018.07.119] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 07/20/2018] [Accepted: 07/24/2018] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE The purpose of this study was to find out the important lncRNA-miRNA-mRNA axis and pathway in osteosarcoma (OS) through bioinformatics analysis and verify the biological functions of lncRNA/miRNA/mRNA in OS through in vitro and in vivo assays. METHODS The differential expression mRNAs and lncRNAs were identified through microarray analysis, and the altered pathways were identified by GSEA. The Pearson Coefficient was used to analyze the correlations between mRNAs and lncRNAs. Kaplan-Meier survival analysis was preformed using patient information in GEO database. Their target miRNAs were predicted by Targetscan and miRanda database and confirmed by dual luciferase reporter assay. QRT-PCR were utilized to detected the relative expressions of mRNAs, miRNAs and lncRNAs. The expressions of IL6R protein and pathway related proteins were detected by western blot. OS cell viability, migration and apoptosis were determined through MTT assay, Transwell assay and flow cytometry. Tumor formation in nude mice verified the influence of LINC01116 in vivo. RESULTS The Jak-stat signaling pathway was activated in OS tissues. LINC01116 expression was positively correlated with IL6R expression. MiR-520a-3p targeted the 3'-UTR of LINC01116 and IL6R. Lower expression levels of miR-520a-3p significantly correlated with shorter survival of patients. LINC01116 and IL6R were up-regulated while miR-520a-3p was down-regulated in OS. LINC01116 and IL6R promoted the viability and migration of OS cells, while miR-520a-3p acted as a tumor suppressor. MiR-520a-3p inhibitor could rescue the suppressive effects of si-LINC011116 and si-IL6R on OS development. The Jak-stat signaling pathway related proteins were also down-regulated by miR-520a-3p. Down-regulation of LINC01116 inhibited the tumor growth in nude mice. CONCLUSION LINC01116 up-regulated IL6R in OS through targeting miR-520a-3p, thus activating the Jak-stat signaling pathway and promoting the progression of OS.
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Affiliation(s)
- Butian Zhang
- Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun 130021, Jilin, China
| | - Lili Yu
- Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun 130021, Jilin, China
| | - Ning Han
- Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun 130021, Jilin, China
| | - Zhenzhen Hu
- Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun 130021, Jilin, China
| | - Shuang Wang
- Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun 130021, Jilin, China
| | - Lei Ding
- Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun 130021, Jilin, China.
| | - Jinlan Jiang
- Department of Central Laboratory, China-Japan Union Hospital of Jilin University, Changchun 130021, Jilin, China.
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23
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Zheng P, Wang W, Ji M, Zhu Q, Feng Y, Zhou F, He Q. TMEM119 promotes gastric cancer cell migration and invasion through STAT3 signaling pathway. Onco Targets Ther 2018; 11:5835-5844. [PMID: 30271166 PMCID: PMC6145364 DOI: 10.2147/ott.s164045] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Objective TMEM119 is a member of transmembrane proteins family, which is abnormally expressed in human cancers and associated with tumorigenesis. In this study, we focused on the expression of TMEM119 and its role in cell invasion and migration in gastric cancer. Methods Real-time polymerase chain reaction, Western blotting, and immunohistochemistry were performed to examine the expression of TMEM119 in gastric cancer tissues and cell lines. After transfection with TMEM119 siRNA or recombined TMEM119-expressing vector, the invasion and migration ability of MKN45 and SGC-7901 cells was measured by transwell assay. The expression of TMEM119, p-STAT3, STAT3, VEGF, MMP2, and MMP9 proteins in SGC-7901 and MKN45 cells treated with TMEM119 siRNA, TMEM119-expressing vector, or AG490 was measured by Western blotting. Results We found that higher TMEM119 expression was found in gastric cancer tissues and cell lines and was associated with lower survival rate. TMEM119 knockdown inhibited SGC-7901 cell invasion and migration, along with the expression of p-STAT3, VEGF, MMP2, and MMP9. TMEM119 overexpression promoted MKN45 cell invasion and migration, along with the expression of p-STAT3, VEGF, MMP2, and MMP9. Additionally, AG490 treatment significantly corrected TMEM119-induced MKN45 cell migration and invasion and expression of p-STAT3, VEGF, MMP9, and MMP2 proteins. Conclusion The results indicated that TMEM119 promotes gastric cancer cell migration and invasion through activation of STAT3 signaling pathway, and TMEM119 may therefore act as a novel therapeutic target for gastric cancer.
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Affiliation(s)
- Peifen Zheng
- Department of Gastroenterology, Zhejiang Hospital, Hangzhou, People's Republic of China,
| | - Weifeng Wang
- Department of Gastroenterology, Zhejiang Hospital, Hangzhou, People's Republic of China,
| | - Muxi Ji
- Department of Gastroenterology, Zhejiang Hospital, Hangzhou, People's Republic of China,
| | - Qin Zhu
- Department of Gastroenterology, Zhejiang Hospital, Hangzhou, People's Republic of China,
| | - Yuliang Feng
- Department of Gastroenterology, Zhejiang Hospital, Hangzhou, People's Republic of China,
| | - Feng Zhou
- Department of Gastroenterology, Zhejiang Hospital, Hangzhou, People's Republic of China,
| | - Qiaona He
- Department of Gastroenterology, Zhejiang Hospital, Hangzhou, People's Republic of China,
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24
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Zhu Y, Tang L, Zhao S, Sun B, Cheng L, Tang Y, Luo Z, Lin Z, Zhu J, Zhu W, Zhao R, Lu B, Long H. CXCR4-mediated osteosarcoma growth and pulmonary metastasis is suppressed by MicroRNA-613. Cancer Sci 2018; 109:2412-2422. [PMID: 29845707 PMCID: PMC6113448 DOI: 10.1111/cas.13653] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 05/22/2018] [Accepted: 05/25/2018] [Indexed: 12/15/2022] Open
Abstract
Osteosarcoma is the most common primary bone malignancy. Recently, studies showed chemokine receptor 4 (CXCR4) played a critical role in osteosarcoma. However, the regulation of CXCR4 is not fully understood. microRNAs are short, non‐coding RNAs that play an important roles in post‐transcriptional regulation of gene expression in a variety of diseases including osteosarcoma. miR‐613 is a newly discovered miRNA and has been reported to function as a tumor suppressor in many cancers. In this study, we confirmed that both Stromal Cell‐Derived Factor (SDF‐1) and CXCR4 could be prognostic markers for osteosarcoma. Meanwhile this study found that SDF‐1/CXCR4 pathway regulated osteosarcoma cells proliferation, migration and reduced apoptosis. Besides, we demonstrated that miR‐613 was significantly downregulated in osteosarcoma patients. Elevated expression of miR‐613 directly suppressed CXCR4 expression and then decreased the proliferation, migration and induced apoptosis of osteosarcoma cells. Moreover, our study found that CXCR4 promoted the development of lung metastases and inhibition of CXCR4 by miR‐613 reduced lung metastases. These data indicated that CXCR4 mediated osteosarcoma cell growth and lung metastases and this effect can be suppressed by miR‐613 through directly downregulating CXCR4.
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Affiliation(s)
- Yong Zhu
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Lanhua Tang
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, China
| | - Shushan Zhao
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Buhua Sun
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Liang Cheng
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Yifu Tang
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Zhongwei Luo
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Zhangyuan Lin
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Jianxi Zhu
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Weihong Zhu
- Department of Orthopedic Surgery, The First People's hospital of Chenzhou, Chenzhou, China
| | - Ruibo Zhao
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Bangbao Lu
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Haitao Long
- Department of Orthopedic Surgery, Xiangya Hospital, Central South University, Changsha, China
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25
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Zheng P, Wang W, Ji M, Zhu Q, Feng Y, Zhou F, He Q. TMEM119 silencing inhibits cell viability and causes the apoptosis of gastric cancer SGC-7901 cells. Oncol Lett 2018; 15:8281-8286. [PMID: 30112075 PMCID: PMC6090580 DOI: 10.3892/ol.2018.8358] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 02/02/2018] [Indexed: 12/18/2022] Open
Abstract
Gastric cancer is the second major cause of death associated with cancer and ranks among the top four cancers diagnosed worldwide. Previous findings identified the association of transmembrane proteins (TMEMs) with tumorigenesis of various types of cancer, including breast, liver and kidney cancer. However, the expression and the biological function of TMEMs, especially TMEM119, and its possible molecular mechanism in gastric cancer remain less understood. CCK-8 and flow cytometric analysis was employed to examine the viability and apoptosis of gastric adenocarcinoma SGC-7901 and AGS cells, gastric carcinoma MKN45 cells, as well as gastric epithelial cell lines GES-1 after transfection with TMEM119-siRNA (siTMEM119), respectively. Quantitative PCR, western blot analysis and immunohistochemistry was performed to detect the expression levels of TMEM119, Bax, Bcl-2 and caspase-3. The results showed that, TMEM119 was elevated with the highest expression detected in SGC-7901 cells compared to AGS cells, MKN45 cells, as well as GES-1. TMEM119 silencing in the gastric cancer cell line, SGC-7901, significantly inhibited cell viability and induced apoptosis. The downregulation of TMEM119 exhibited reduced levels of Bcl-2 and higher levels of Bax and caspase-3 in SGC-7901 cells. These results suggest that TMEM119 is useful in the treatment of gastric cancer.
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Affiliation(s)
- Peifen Zheng
- Department of Gastroenterology, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Weifeng Wang
- Department of Gastroenterology, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Muxi Ji
- Department of Gastroenterology, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Qin Zhu
- Department of Gastroenterology, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Yuliang Feng
- Department of Gastroenterology, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Feng Zhou
- Department of Gastroenterology, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Qiaona He
- Department of Gastroenterology, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
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