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Muralidharan N, Murugan A, Raj PA, Jothi M. Restoration of functional PAX3 transcriptional factor enhanced neuronal differentiation in PAX3b isoform-depleted neuroblastoma cells. Cell Tissue Res 2023; 391:55-65. [PMID: 36378335 DOI: 10.1007/s00441-022-03710-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 11/08/2022] [Indexed: 11/16/2022]
Abstract
Reexpressed PAX3 transcription factor is believed to be responsible for the differentiation defects observed in neuroblastoma. Although the importance of PAX3 in neuronal differentiation is documented how it is involved in the defective differentiation remains unexplored particularly with its isoforms. Here, first we have analyzed PAX3 expression, its functional status, and its correlation with the neuronal marker expression in SH-SY5Y and its parental SK-N-SH cells. We have found that SH-SY5Y cells which expressed more PAX3 showed increased expression of neuronal marker genes (TUBB, MAP2, NEFL, NEUROG2, SYP) and reported PAX3 target genes (MET, TGFA, and NCAM1) than the SK-N-SH cells that had low PAX3 level. Retinoic acid treatment is unable to induce neuronal differentiation in cells (SK-N-SH) with low PAX3 level/activity. Moreover, ectopic expression of PAX3 in SK-N-SH cells neither induces neuronal marker genes nor its target genes. PAX3 isoform expression analysis revealed the expression of PAX3b isoform that contains only paired domain in SK-N-SH cells, whereas in SH-SY5Y cells, we could also observe PAX3c isoform that contains all functional domains. Further, PAX3b depletion in SK-N-SH cells is not induced PAX3 target genes, and the cells remain poorly differentiated. Interestingly, ectopic PAX3 expression in PAX3b-depleted SK-N-SH cells enhanced neuronal outgrowth along with neuronal marker gene induction. Collectively, these results showed that the PAX3b isoform may be responsible for the differentiation defect observed in SK-N-SH cells and restoration of functional PAX3 in the absence of PAX3b can induce neurogenesis in these cells.
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Affiliation(s)
- Narenkumar Muralidharan
- Laboratory of Molecular Therapeutics, Department of Human Genetics, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru, 560029, Karnataka, India
| | - Abinayaselvi Murugan
- Laboratory of Molecular Therapeutics, Department of Human Genetics, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru, 560029, Karnataka, India
| | - Prabhuraj Andiperumal Raj
- Department of Neurosurgery, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru, 560029, Karnataka, India
| | - Mathivanan Jothi
- Laboratory of Molecular Therapeutics, Department of Human Genetics, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru, 560029, Karnataka, India.
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2
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Shinno Y, Takenobu H, Sugino RP, Endo Y, Okada R, Haruta M, Satoh S, Mukae K, Shaliman D, Wada T, Akter J, Ando K, Nakazawa A, Yoshida H, Ohira M, Hishiki T, Kamijo T. Polycomb EZH1 regulates cell cycle/5-fluorouracil sensitivity of neuroblastoma cells in concert with MYCN. Cancer Sci 2022; 113:4193-4206. [PMID: 36052716 DOI: 10.1111/cas.15555] [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: 11/24/2021] [Revised: 08/15/2022] [Accepted: 08/22/2022] [Indexed: 12/15/2022] Open
Abstract
In the present study, we found that EZH1 depletion in MYCN-amplified neuroblastoma cells resulted in significant cell death as well as xenograft inhibition. EZH1 depletion decreased the level of H3K27me1; the interaction and protein stabilization of MYCN and EZH1 appear to play roles in epigenetic transcriptional regulation. Transcriptome analysis of EZH1-depleted cells resulted in downregulation of the cell cycle progression-related pathway. In particular, Gene Set Enrichment Analysis revealed downregulation of reactome E2F-mediated regulation of DNA replication along with key genes of this process, TYMS, POLA2, and CCNA1. TYMS and POLA2 were transcriptionally activated by MYCN and EZH1-related epigenetic modification. Treatment with the EZH1/2 inhibitor UNC1999 also induced cell death, decreased H3K27 methylation, and reduced the levels of TYMS in neuroblastoma cells. Previous reports indicated neuroblastoma cells are resistant to 5-fluorouracil (5-FU) and TYMS (encoding thymidylate synthetase) has been considered the primary site of action for folate analogues. Intriguingly, UNC1999 treatment significantly sensitized MYCN-amplified neuroblastoma cells to 5-FU treatment, suggesting that EZH inhibition could be an effective strategy for development of a new epigenetic treatment for neuroblastoma.
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Affiliation(s)
- Yoshitaka Shinno
- Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan.,Department of Pediatric Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Hisanori Takenobu
- Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | - Ryuichi P Sugino
- Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | - Yuki Endo
- Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | - Ryu Okada
- Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan.,Laboratory of Tumor Molecular Biology, Department of Graduate School of Science and Engineering, Saitama University, Saitama, Japan
| | - Masayuki Haruta
- Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | - Shunpei Satoh
- Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | - Kyosuke Mukae
- Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | - Dilibaerguli Shaliman
- Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan.,Laboratory of Tumor Molecular Biology, Department of Graduate School of Science and Engineering, Saitama University, Saitama, Japan
| | - Tomoko Wada
- Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | - Jesmin Akter
- Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | - Kiyohiro Ando
- Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | - Atsuko Nakazawa
- Department of Clinical Research, Saitama Children's Medical Center, Saitama, Japan
| | - Hideo Yoshida
- Department of Pediatric Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Miki Ohira
- Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | - Tomoro Hishiki
- Department of Pediatric Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takehiko Kamijo
- Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan.,Laboratory of Tumor Molecular Biology, Department of Graduate School of Science and Engineering, Saitama University, Saitama, Japan
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3
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Zhang K, Yu C, Tian R, Zhang W, Tang S, Wang G. Downregulation of the paired box gene 3 inhibits the progression of skin cutaneous melanoma by inhibiting c-MET tyrosine kinase : PAX3 downregulation inhibits melanoma progression. Mol Biol Rep 2022; 49:9137-9145. [PMID: 36057879 DOI: 10.1007/s11033-022-07706-5] [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: 11/30/2021] [Revised: 05/30/2022] [Accepted: 06/14/2022] [Indexed: 02/05/2023]
Abstract
BACKGROUND The PAX3 (paired box gene 3) gene is highly expressed in several cancer types. However, its underlying mechanism of action in skin cutaneous melanoma (SKCM) remains unknown. METHODS In this study, we used the GEPIA database and western blotting to analyze the expression of PAX3. We performed the Kaplan-Meier survival analysis to evaluate the prognostic value of PAX3 in SKCM. Next, the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis was performed to evaluate the function of PAX3-related co-expressed genes. Additionally, the function and potential mechanism of action of PAX3 in SKCM were studied through functional experiments. Western blotting was used to detect the changes in the levels of epithelial-mesenchymal transition (EMT)-related and MET (c-MET tyrosine kinase) proteins following PAX3 knockdown. Finally, we assessed the correlation between PAX3 expression and the infiltration of CD4+/CD8+ T cells using the TISIDB database. RESULTS We found that PAX3 was overexpressed in the SKCM tissues and that these levels were indicative of a poor prognosis of SKCM. The KEGG pathway enrichment analysis showed that PAX3-related co-expressed genes were mainly associated with the oncogenic pathways. Knocking down PAX3 significantly inhibited the proliferation, invasion, and migration of SK-MEL-28 cells. The PAX3 expression was related significantly to the immune infiltration level of CD4+/CD8+ T cells. CONCLUSIONS Our findings demonstrated that PAX3 knockdown could reverse the EMT of tumor cells, inhibit the growth, and progression of SKCM cells. Therefore, PAX3 may have implications as a potential therapeutic target and promising prognostic biomarker for SKCM.
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Affiliation(s)
- Kun Zhang
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, CN, China
| | - Chunfang Yu
- Department of Nursing, Second Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, CN, China
| | - Ruoxi Tian
- School of Basic Medicine, Tianjin Medical University, Tianjin, CN, China
| | - Wancong Zhang
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, CN, China
| | - Shijie Tang
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, CN, China
| | - Guiying Wang
- Department of General Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, Hbei, CN, China
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Stahlke AR, Epstein B, Barbosa S, Margres MJ, Patton AH, Hendricks SA, Veillet A, Fraik AK, Schönfeld B, McCallum HI, Hamede R, Jones ME, Storfer A, Hohenlohe PA. Contemporary and historical selection in Tasmanian devils ( Sarcophilus harrisii) support novel, polygenic response to transmissible cancer. Proc Biol Sci 2021; 288:20210577. [PMID: 34034517 PMCID: PMC8150010 DOI: 10.1098/rspb.2021.0577] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 05/04/2021] [Indexed: 12/17/2022] Open
Abstract
Tasmanian devils (Sarcophilus harrisii) are evolving in response to a unique transmissible cancer, devil facial tumour disease (DFTD), first described in 1996. Persistence of wild populations and the recent emergence of a second independently evolved transmissible cancer suggest that transmissible cancers may be a recurrent feature in devils. Here, we compared signatures of selection across temporal scales to determine whether genes or gene pathways under contemporary selection (six to eight generations) have also been subject to historical selection (65-85 Myr). First, we used targeted sequencing, RAD-capture, in approximately 2500 devils in six populations to identify genomic regions subject to rapid evolution. We documented genome-wide contemporary evolution, including 186 candidate genes related to cell cycling and immune response. Then we used a molecular evolution approach to identify historical positive selection in devils compared to other marsupials and found evidence of selection in 1773 genes. However, we found limited overlap across time scales, with only 16 shared candidate genes, and no overlap in enriched functional gene sets. Our results are consistent with a novel, multi-locus evolutionary response of devils to DFTD. Our results can inform conservation by identifying high priority targets for genetic monitoring and guiding maintenance of adaptive potential in managed populations.
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Affiliation(s)
- Amanda R. Stahlke
- Institute for Bioinformatics and Evolutionary Studies (IBEST), University of Idaho, Moscow, ID 83844, USA
| | - Brendan Epstein
- School of Biological Sciences, Washington State University, Pullman, WA 99164, USA
| | - Soraia Barbosa
- Institute for Bioinformatics and Evolutionary Studies (IBEST), University of Idaho, Moscow, ID 83844, USA
- Department of Fish and Wildlife Sciences, University of Idaho, Moscow, ID 83844, USA
| | - Mark J. Margres
- School of Biological Sciences, Washington State University, Pullman, WA 99164, USA
- Department of Integrative Biology, University of South Florida, Tampa, FL 33620, USA
| | - Austin H. Patton
- School of Biological Sciences, Washington State University, Pullman, WA 99164, USA
- Department of Integrative Biology and Museum of Vertebrate Zoology, University of California, Berkeley, CA 94720, USA
| | - Sarah A. Hendricks
- Institute for Bioinformatics and Evolutionary Studies (IBEST), University of Idaho, Moscow, ID 83844, USA
| | - Anne Veillet
- Institute for Bioinformatics and Evolutionary Studies (IBEST), University of Idaho, Moscow, ID 83844, USA
| | - Alexandra K. Fraik
- School of Biological Sciences, Washington State University, Pullman, WA 99164, USA
| | - Barbara Schönfeld
- School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7005, Australia
| | - Hamish I. McCallum
- Environmental Futures Research Institute, Griffith University, Nathan, Queensland 4111, Australia
| | - Rodrigo Hamede
- School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7005, Australia
| | - Menna E. Jones
- School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7005, Australia
| | - Andrew Storfer
- School of Biological Sciences, Washington State University, Pullman, WA 99164, USA
| | - Paul A. Hohenlohe
- Institute for Bioinformatics and Evolutionary Studies (IBEST), University of Idaho, Moscow, ID 83844, USA
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5
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Han GH, Chay DB, Nam S, Cho H, Chung JY, Kim JH. Prognostic implications of forkhead box protein O1 (FOXO1) and paired box 3 (PAX3) in epithelial ovarian cancer. BMC Cancer 2019; 19:1202. [PMID: 31823759 PMCID: PMC6905044 DOI: 10.1186/s12885-019-6406-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 11/27/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Transcription factors forkhead box protein O1 (FOXO1) and paired box 3 (PAX3) have been reported to play important roles in various cancers. However, their role in epithelial ovarian cancer (EOC) has not been elucidated yet. Therefore, we evaluated the expression and clinical significance of FOXO1 and PAX3 in EOC. METHODS Immunohistochemical analyses of FOXO1 and PAX3 in 212 EOCs, 57 borderline ovarian tumors, 153 benign epithelial ovarian tumors, and 79 nonadjacent normal epithelial tissues were performed using tissue microarray. Various clinicopathological variables, including the survival of EOC patients, were compared. In addition, the effect of FOXO1 on cell growth was assessed in EOC cell lines. RESULTS FOXO1 and PAX3 protein expression levels were significantly higher in EOC tissues than in nonadjacent normal epithelial tissues, benign tissues, and borderline tumors (all p < 0.001). In EOC tissues, FOXO1 expression was positively correlated with PAX3 expression (Spearman's rho = 0.118, p = 0.149). Multivariate survival analysis revealed that high FOXO1 expression (hazard ratio = 2.77 [95% CI, 1.48-5.18], p = 0.001) could be an independent prognostic factor for overall survival. Most importantly, high expression of both FOXO1 and PAX3 showed a high hazard ratio (4.60 [95% CI, 2.00-10.55], p < 0.001) for overall survival. Also in vitro results demonstrated that knockdown of FOXO1 was associated with decreased cell viability, migration, and colony formation. CONCLUSIONS This study revealed that high expression of FOXO1/PAX3 is an indicator of poor prognosis in EOC. Our results suggest the promising potential of FOXO1 and PAX3 as prognostic and therapeutic markers. The possible link between biological functions of FOXO1 and PAX3 in EOC warrants further studies.
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Affiliation(s)
- Gwan Hee Han
- Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Doo Byung Chay
- Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sanghee Nam
- Department of Obstetrics and Gynecology, Gangnam Severance Hospital, Yonsei University College of Medicine, 211 Eonju-Ro, Gangnam-Gu, Seoul, Seoul, 06273, South Korea
| | - Hanbyoul Cho
- Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul, Republic of Korea. .,Experimental Pathology Laboratory, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
| | - Joon-Yong Chung
- Experimental Pathology Laboratory, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jae-Hoon Kim
- Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul, Republic of Korea
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6
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Angelopoulou E, Paudel YN, Piperi C. Emerging Pathogenic and Prognostic Significance of Paired Box 3 (PAX3) Protein in Adult Gliomas. Transl Oncol 2019; 12:1357-1363. [PMID: 31352198 PMCID: PMC6664158 DOI: 10.1016/j.tranon.2019.07.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 07/08/2019] [Indexed: 01/19/2023] Open
Abstract
Gliomas present the most common type of brain tumors in adults, characterized by high morbidity and mortality. In search of potential molecular targets, members of paired box (PAX) family have been found expressed in neural crest cells, regulating their proliferation, apoptosis, migration and differentiation. Recently, PAX3 overexpression has been implicated in glioma tumorigenesis by enhancing proliferation, increasing invasiveness and inducing resistance to apoptosis of glioma cells, while maintaining brain glioma stem cells (BGSCs) stemness. Although the oncogenic potential of PAX3 in gliomas is still under investigation, experimental evidence suggests that PAX3 function is mainly mediated through the canonical and non-canonical Wnt signaling pathway as well as through its interaction with GFAP and p53 proteins. In addition, PAX3 may contribute to the chemoresistance of glioma cells and modulates the effectiveness of novel experimental therapies. Further evidence indicates that PAX3 may represent a novel diagnostic and prognostic biomarker for gliomas, facilitating personalized treatment. This review addresses the emerging role of PAX3 in glioma diagnosis, prognosis and treatment, aiming to shed more light on the underlying molecular mechanisms that could lead to more effective treatment approaches.
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Affiliation(s)
- Efthalia Angelopoulou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Yam Nath Paudel
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia
| | - Christina Piperi
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece.
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7
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Fujii R, Osaka E, Sato K, Tokuhashi Y. MiR-1 Suppresses Proliferation of Osteosarcoma Cells by Up-regulating p21 via PAX3. Cancer Genomics Proteomics 2019; 16:71-79. [PMID: 30587501 DOI: 10.21873/cgp.20113] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 10/18/2018] [Accepted: 10/19/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND/AIM miRNA-1(miR-1) is down-regulated in various cancer cells including osteosarcoma cells. This study was conducted to analyze the function of miR-1 in osteosarcoma cells. MATERIALS AND METHODS miR-1 expression in osteosarcoma cells was evaluated by qRT-PCR. Cell proliferation was evaluated after transfecting miR-1 by WST8 assay and FACS analysis, both in vitro and in vivo. RESULTS Overexpression of miR-1 suppressed cell proliferation and induced cell-cycle arrest in the G0-G1 phase by increasing p21 levels via a p53-independent pathway. Overexpression of miR-1 down-regulated PAX3, a potential p21-regulating gene. Moreover, knockdown of PAX3 suppressed cell proliferation by increasing p21 levels, and induced arrest at the G0/G1 phase. Administration of miR-1 showed an in vivo antitumor effect. CONCLUSION Overexpression of miR-1 suppressed cell proliferation and induced arrest in the G0/G1 phase by increasing p21 levels via a p53-independent pathway through PAX3 suppression. These results indicate that miR-1 could be a therapeutic target for osteosarcoma.
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Affiliation(s)
- Ryota Fujii
- Department of Orthopaedic Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Eiji Osaka
- Department of Orthopaedic Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Kentaro Sato
- Department of Orthopaedic Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Yasuaki Tokuhashi
- Department of Orthopaedic Surgery, Nihon University School of Medicine, Tokyo, Japan
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8
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Liang X, Dong Z, Bin W, Dekang N, Xuhang Z, Shuyuan Z, Liwen L, Kai J, Caixing S. PAX3 Promotes Proliferation of Human Glioma Cells by WNT/β-Catenin Signaling Pathways. J Mol Neurosci 2019; 68:66-77. [PMID: 30826985 DOI: 10.1007/s12031-019-01283-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 02/20/2019] [Indexed: 12/14/2022]
Abstract
The PAX3 (paired box 3) gene plays an important role in embryonic development, diseases, and cancer formation. Our preliminary studies have shown that PAX3 gene is upregulated in glioma cells, which is associated with a worse prognosis. Moreover, PAX3, by facilitating cell proliferation and invasion and inhibiting cell apoptosis, plays an oncogenic role in glioma. However, the specific molecular mechanism of PAX3 acting as an oncogene in glioma remains unclarified. In the present study, we have found that PAX3 overexpression was observed in high grade glioma and predicted a worse prognosis. PAX3 overexpression did not correlate significantly to IDH1 mutation and MGMT methylation. Moreover, the expression of PAX3 was positively correlated with that of β-catenin. In U87 glioma cells, PAX3 interacted with β-catenin, as was confirmed by CO-IP. Besides, PAX3 overexpression promoted cell proliferation and cell cycle progression, while it inhibited cell apoptosis by altering the expressions of important molecules associated with the Wnt signaling pathway, including β-catenin, Myc, VEGF, cyclinD1, MMP7, and Wnt1. In the meantime, it was also proved that PAX3 correlated to β-catenin through a negative regulatory mechanism with respect to the promotion of U87 glioma cell proliferation and cell cycle progression and inhibition of the cell apoptosis. Our experiment demonstrated the role of PAX3 in promoting glioma growth and development, possibly by interacting directly with β-catenin and regulating the Wnt signaling pathway.
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Affiliation(s)
- Xia Liang
- Department of Neurosurgery, Zhejiang Cancer Hospital, 1 Ban Shan east road, Hangzhou, 310022, Zhejiang Province, China
| | - Zhao Dong
- Department of Neurosurgery, Zhejiang Hospital, 12 Lingyin road, Hangzhou, 310013, Zhejiang Province, China
| | - Wu Bin
- Department of Neurosurgery, Zhejiang Cancer Hospital, 1 Ban Shan east road, Hangzhou, 310022, Zhejiang Province, China
| | - Nie Dekang
- Department of Neurosurgery, Yancheng First Peoples' Hospital, Yancheng, 224001, Jiangsu Province, China
| | - Zhu Xuhang
- Department of Head and Neck Surgery, Zhejiang Cancer Hospital, 1 Ban Shan east road, Hangzhou, 310022, Zhejiang Province, China
| | - Zhang Shuyuan
- Department of Neurosurgery, Zhejiang Cancer Hospital, 1 Ban Shan east road, Hangzhou, 310022, Zhejiang Province, China
| | - Li Liwen
- Department of Neurosurgery, Zhejiang Cancer Hospital, 1 Ban Shan east road, Hangzhou, 310022, Zhejiang Province, China
| | - Jin Kai
- Department of Neurosurgery, Zhejiang Cancer Hospital, 1 Ban Shan east road, Hangzhou, 310022, Zhejiang Province, China
| | - Sun Caixing
- Department of Neurosurgery, Zhejiang Cancer Hospital, 1 Ban Shan east road, Hangzhou, 310022, Zhejiang Province, China.
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9
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PAX3: A Molecule with Oncogenic or Tumor Suppressor Function Is Involved in Cancer. BIOMED RESEARCH INTERNATIONAL 2018. [DOI: 10.1155/2018/1095459] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Metastasis is the most deadly aspect of cancer and results from acquired gene regulation abnormalities in tumor cells. Transcriptional regulation is an essential component of controlling of gene function and its failure could contribute to tumor progression and metastasis. During cancer progression, deregulation of oncogenic or tumor suppressive transcription factors, as well as master cell fate regulators, collectively influences multiple steps of the metastasis cascade, including local invasion and dissemination of the tumor to distant organs. Transcription factor PAX3/Pax3, which contributes to diverse cell lineages during embryonic development, plays a major role in tumorigenesis. Mutations in this gene can cause neurodevelopmental disease and the existing literature supports that there is a potential link between aberrant expression of PAX3 genes in adult tissues and a wide variety of cancers. PAX3 function is tissue-specific and could contribute to tumorigenesis either directly as oncogene or as a tumor suppressor by losing its function. In this review, we discuss comprehensively the differential role played by PAX3 in various tissues and how its aberrant expression is implicated in disease development. This review particularly highlights the oncogenic and tumor suppressor role played by PAX3 in different cancers and underlines the importance of precisely identifying tissue-specific role of PAX3 in order to determine its exact role in development of cancer.
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10
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Zhu H, Wang H, Huang Q, Liu Q, Guo Y, Lu J, Li X, Xue C, Han Q. Transcriptional Repression of p53 by PAX3 Contributes to Gliomagenesis and Differentiation of Glioma Stem Cells. Front Mol Neurosci 2018; 11:187. [PMID: 29937714 PMCID: PMC6003214 DOI: 10.3389/fnmol.2018.00187] [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] [Received: 10/03/2017] [Accepted: 05/14/2018] [Indexed: 12/31/2022] Open
Abstract
Although there are available therapies as surgery, chemotherapy and radiation, glioblastoma (GBM) still has been considered as the most common and overwhelming primary tumor of brain. In GBM, the brain glioma stem cells (BGSCs) were identified and played a crucial role in resistance of GBM to conventional therapies described above. PAX3 was previously identified by our group as a diagnostic/prognostic marker and a therapeutic regulator in the therapy of GBM. Here, we hypothesized PAX3/p53 axis promoted the process of differentiation, regulating to the cancer stem cell properties, such as proliferation and migration. The correlation between PAX3 and p53 in GBM were first clarified. Immunofluorescence of p53 was shown activated following BGSCs differentiation. We further identified that PAX3 might specifically bind to the promoter of p53 gene, and transcriptionally repressed p53 expression. ChIP assay further confirmed that PAX3/p53 axis regulated the differentiation process of BGSCs. Then, the function of PAX3 in BGSCs were sequentially investigated in vitro and in vivo. Ectopic PAX3 expression promoted BGSCs growth and migration while PAX3 knockdown suppressed BGSCs growth, migration in vitro and in vivo. Similar to PAX3 overexpression, p53 inhibition also showed increase in growth and migration of differentiated BGSCs. Regarding the functional interaction between PAX3 and p53, PAX3 knockdown-mediated decrease in proliferation was partially rescued by p53 inhibition. Hypoxia significantly promoted the migration potential of BGSCs. In addition, hypoxia inducible factor-1α (HIF-1α) might be a potential upstream regulator of PAX3 in differentiated BGSCs under hypoxia. Our work may provide a supplementary mechanism in regulation of the BGSCs differentiation and their functions, which should provide novel therapeutic targets for GBM in future.
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Affiliation(s)
- Hui Zhu
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, China.,Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Hongkui Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Qingfeng Huang
- Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Qianqian Liu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China.,Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Yibing Guo
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Jingjing Lu
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Xiaohong Li
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Chengbin Xue
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, China.,Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Qianqian Han
- National Institute for Food and Drug Control, Beijing, China
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11
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Dehghanian F, Hojati Z, Hosseinkhan N, Mousavian Z, Masoudi-Nejad A. Reconstruction of the genome-scale co-expression network for the Hippo signaling pathway in colorectal cancer. Comput Biol Med 2018; 99:76-84. [PMID: 29890510 DOI: 10.1016/j.compbiomed.2018.05.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 05/24/2018] [Accepted: 05/24/2018] [Indexed: 01/22/2023]
Abstract
The Hippo signaling pathway (HSP) has been identified as an essential and complex signaling pathway for tumor suppression that coordinates proliferation, differentiation, cell death, cell growth and stemness. In the present study, we conducted a genome-scale co-expression analysis to reconstruct the HSP in colorectal cancer (CRC). Five key modules were detected through network clustering, and a detailed discussion of two modules containing respectively 18 and 13 over and down-regulated members of HSP was provided. Our results suggest new potential regulatory factors in the HSP. The detected modules also suggest novel genes contributing to CRC. Moreover, differential expression analysis confirmed the differential expression pattern of HSP members and new suggested regulatory factors between tumor and normal samples. These findings can further reveal the importance of HSP in CRC.
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Affiliation(s)
- Fariba Dehghanian
- Division of Genetics, Department of Biology, Faculty of Sciences, University of Isfahan, P.O. Box 81746-73441, Isfahan, Iran
| | - Zohreh Hojati
- Division of Genetics, Department of Biology, Faculty of Sciences, University of Isfahan, P.O. Box 81746-73441, Isfahan, Iran.
| | - Nazanin Hosseinkhan
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Laboratory of Systems Biology and Bioinformatics (LBB), Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Zaynab Mousavian
- Department of Computer Science, School of Mathematics, Statistics, and Computer Science, University of Tehran, Tehran, Iran; Laboratory of Systems Biology and Bioinformatics (LBB), Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Ali Masoudi-Nejad
- Laboratory of Systems Biology and Bioinformatics (LBB), Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran.
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12
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Liu W, Sui F, Liu J, Wang M, Tian S, Ji M, Shi B, Hou P. PAX3 is a novel tumor suppressor by regulating the activities of major signaling pathways and transcription factor FOXO3a in thyroid cancer. Oncotarget 2018; 7:54744-54757. [PMID: 27458157 PMCID: PMC5342378 DOI: 10.18632/oncotarget.10753] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 07/09/2016] [Indexed: 11/25/2022] Open
Abstract
Paired box 3 (PAX3) is expressed early during embryonic development in spatially restricted domains in the nervous system and in some mesodermally-derived structure. In recent years, it is found to be overexpressed in different types of cancer tissues and cell lines including glioblastomas, neuroblastomas, melanomas, rhabdomyosarcomas, Ewing sarcomas and gastric cancers, suggesting that it may function as an oncogene in these cancers. However, its role in thyroid cancer remains totally unclear. The aim of this study was to explore the functions and related molecular mechanism of PAX3 in thyroid tumorigenesis. Using quantitative RT-PCR (qRT-PCR) and Methylation-specific PCR (MSP) assays, we demonstrated that PAX3 was frequently down-regulated by promoter methylation in both primary thyroid cancer tissues and thyroid cancer cell lines. In addition, our data showed that ectopic expression of PAX3 dramatically inhibited thyroid cancer cell proliferation, colony formation, migration and invasion, induced cell cycle arrest and apoptosis and retarded tumorigenic potential in nude mice. Mechanically, PAX3 exerted its tumor suppressor function by inhibiting the activity of major signaling pathways including the phosphatidylinositol-3-kinase (PI3K)/Akt and MAPK/Erk pathways, and enhancing expression and activity of transcription factor FOXO3a. Altogether, our findings provided insight into the role of PAX3 as a novel functional tumor suppressor in thyroid cancer through modulating the activities of PI3K/Akt and MAPK signaling pathways and transcription factor FOXO3a, and demonstrated that epigenetic alterations such as promoter methylation should be a major mechanism of PAX3 inactivation in this cancer.
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Affiliation(s)
- Wei Liu
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
| | - Fang Sui
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
| | - Jiazhe Liu
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
| | - Meichen Wang
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
| | - Sijia Tian
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
| | - Meiju Ji
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
| | - Bingyin Shi
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
| | - Peng Hou
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, P.R. China
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13
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Tomolonis JA, Agarwal S, Shohet JM. Neuroblastoma pathogenesis: deregulation of embryonic neural crest development. Cell Tissue Res 2017; 372:245-262. [PMID: 29222693 DOI: 10.1007/s00441-017-2747-0] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 11/21/2017] [Indexed: 12/12/2022]
Abstract
Neuroblastoma (NB) is an aggressive pediatric cancer that originates from neural crest tissues of the sympathetic nervous system. NB is highly heterogeneous both from a clinical and a molecular perspective. Clinically, this cancer represents a wide range of phenotypes ranging from spontaneous regression of 4S disease to unremitting treatment-refractory progression and death of high-risk metastatic disease. At a cellular level, the heterogeneous behavior of NB likely arises from an arrest and deregulation of normal neural crest development. In the present review, we summarize our current knowledge of neural crest development as it relates to pathways promoting 'stemness' and how deregulation may contribute to the development of tumor-initiating CSCs. There is an emerging consensus that such tumor subpopulations contribute to the evolution of drug resistance, metastasis and relapse in other equally aggressive malignancies. As relapsed, refractory disease remains the primary cause of death for neuroblastoma, the identification and targeting of CSCs or other primary drivers of tumor progression remains a critical, clinically significant goal for neuroblastoma. We will critically review recent and past evidence in the literature supporting the concept of CSCs as drivers of neuroblastoma pathogenesis.
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Affiliation(s)
- Julie A Tomolonis
- Department of Pediatrics, Section of Hematology-Oncology, Texas Children's Cancer Center, Houston, TX, 77030, USA.,Medical Scientist Training Program (MSTP), Baylor College of Medicine, Houston, TX, 77030, USA.,Translational Biology & Molecular Medicine (TBMM) Graduate Program, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Saurabh Agarwal
- Department of Pediatrics, Section of Hematology-Oncology, Texas Children's Cancer Center, Houston, TX, 77030, USA.,Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Jason M Shohet
- Department of Pediatrics, Section of Hematology-Oncology, Texas Children's Cancer Center, Houston, TX, 77030, USA. .,Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX, 77030, USA. .,Neuroblastoma Research Program, Texas Children's Cancer Center, Baylor College of Medicine, Houston, TX, 77030, USA.
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14
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An Examination of the Role of Transcriptional and Posttranscriptional Regulation in Rhabdomyosarcoma. Stem Cells Int 2017. [PMID: 28638414 PMCID: PMC5468592 DOI: 10.1155/2017/2480375] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Rhabdomyosarcoma (RMS) is an aggressive family of soft tissue tumors that most commonly manifests in children. RMS variants express several skeletal muscle markers, suggesting myogenic stem or progenitor cell origin of RMS. In this review, the roles of both recently identified and well-established microRNAs in RMS are discussed and summarized in a succinct, tabulated format. Additionally, the subtypes of RMS are reviewed along with the involvement of basic helix-loop-helix (bHLH) proteins, Pax proteins, and microRNAs in normal and pathologic myogenesis. Finally, the current and potential future treatment options for RMS are outlined.
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15
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Variants in the host genome may inhibit tumour growth in devil facial tumours: evidence from genome-wide association. Sci Rep 2017; 7:423. [PMID: 28341828 PMCID: PMC5428454 DOI: 10.1038/s41598-017-00439-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 02/28/2017] [Indexed: 11/08/2022] Open
Abstract
Devil facial tumour disease (DFTD) has decimated wild populations of Tasmanian devils (Sarcophilus harrisii) due to its ability to avoid immune detection and pass from host to host by biting. A small number of devils have been observed to spontaneously recover from the disease which is otherwise fatal. We have sequenced the genomes of these rare cases and compared them to the genomes of devils who succumbed to the disease. Genome-wide association, based on this limited sampling, highlighted two key genomic regions potentially associated with ability to survive DFTD. Following targeted genotyping in additional samples, both of these loci remain significantly different between cases and controls, with the PAX3 locus retaining significance at the 0.001 level, though genome-wide significance was not achieved. We propose that PAX3 may be involved in a regulatory pathway that influences the slowing of tumour growth and may allow more time for an immune response to be mounted in animals with regressed tumours. This provides an intriguing hypothesis for further research and could provide a novel route of treatment for this devastating disease.
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16
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Lin J, Fu S, Yang C, Redies C. Pax3 overexpression induces cell aggregation and perturbs commissural axon projection during embryonic spinal cord development. J Comp Neurol 2017; 525:1618-1632. [PMID: 27864937 DOI: 10.1002/cne.24146] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 10/06/2016] [Accepted: 10/23/2016] [Indexed: 12/12/2022]
Abstract
Pax3 is a transcription factor that belongs to the paired box family. In the developing spinal cord it is expressed in the dorsal commissural neurons, which project ascending axons contralaterally to form proper spinal cord-brain circuitry. While it has been shown that Pax3 induces cell aggregation in vitro, little is known about the role of Pax3 in cell aggregation and spinal circuit formation in vivo. We have reported that Pax3 is involved in neuron differentiation and that its overexpression induces ectopic cadherin-7 expression. In this study we report that Pax3 overexpression also induces cell aggregation in vivo. Tissue sections and open book preparations revealed that Pax3 overexpression prevents commissural axons from projecting to the contralateral side of the spinal cord. Cells overexpressing Pax3 aggregated in cell clusters that contained shortened neurites with perturbed axon growth and elongation. Pax3-specific shRNA partially rescued the morphological change induced by Pax3 overexpression in vivo. Our results indicate that the normal expression of Pax3 is necessary for proper axonal pathway finding and commissural axon projection. In conclusion, Pax3 regulates neural circuit formation during embryonic development. J. Comp. Neurol. 525:1618-1632, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Juntang Lin
- Institute of Anatomy I, University of Jena School of Medicine, Jena University Hospital, Jena, Germany.,Henan Key Lab of Medical Tissue Regeneration, College of Life Science and Technology, College of Biomedical Engineering, Xinxiang Medical University, Xinxiang, China
| | - Sulei Fu
- Institute of Anatomy I, University of Jena School of Medicine, Jena University Hospital, Jena, Germany
| | - Ciqing Yang
- Institute of Anatomy I, University of Jena School of Medicine, Jena University Hospital, Jena, Germany.,Henan Key Lab of Medical Tissue Regeneration, College of Life Science and Technology, College of Biomedical Engineering, Xinxiang Medical University, Xinxiang, China
| | - Christoph Redies
- Institute of Anatomy I, University of Jena School of Medicine, Jena University Hospital, Jena, Germany
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17
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Aurora Kinase A is a Biomarker for Bladder Cancer Detection and Contributes to its Aggressive Behavior. Sci Rep 2017; 7:40714. [PMID: 28102366 PMCID: PMC5244380 DOI: 10.1038/srep40714] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 12/08/2016] [Indexed: 01/01/2023] Open
Abstract
The effects of AURKA overexpression associated with poor clinical outcomes have been attributed to increased cell cycle progression and the development of genomic instability with aneuploidy. We used RNA interference to examine the effects of AURKA overexpression in human bladder cancer cells. Knockdown had minimal effects on cell proliferation but blocked tumor cell invasion. Whole genome mRNA expression profiling identified nicotinamide N-methyltransferase (NNMT) as a downstream target that was repressed by AURKA. Chromatin immunoprecipitation and NNMT promoter luciferase assays revealed that AURKA’s effects on NNMT were caused by PAX3-mediated transcriptional repression and overexpression of NNMT blocked tumor cell invasion in vitro. Overexpression of AURKA and activation of its downstream pathway was enriched in the basal subtype in primary human tumors and was associated with poor clinical outcomes. We also show that the FISH test for the AURKA gene copy number in urine yielded a specificity of 79.7% (95% confidence interval [CI] = 74.2% to 84.1%), and a sensitivity of 79.6% (95% CI = 74.2% to 84.1%) with an AUC of 0.901 (95% CI = 0.872 to 0.928; P < 0.001). These results implicate AURKA as an effective biomarker for bladder cancer detection as well as therapeutic target especially for its basal type.
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18
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Liu Q, Yang G, Qian Y. Loss of MicroRNA-489-3p promotes osteosarcoma metastasis by activating PAX3-MET pathway. Mol Carcinog 2016; 56:1312-1321. [PMID: 27859625 DOI: 10.1002/mc.22593] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Revised: 11/03/2016] [Accepted: 11/11/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Qifei Liu
- Department of Emergency; Affiliated Hospital of Shandong Academy of Medical Sciences; Jinan China
| | - Guochun Yang
- Department of Emergency; Affiliated Hospital of Shandong Academy of Medical Sciences; Jinan China
| | - Yuying Qian
- Department of Nephrology; Affiliated Hospital of Shandong Academy of Medical Sciences; Jinan China
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19
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Wang X, Lopez OL, Sweet RA, Becker JT, DeKosky ST, Barmada MM, Demirci FY, Kamboh MI. Genetic determinants of disease progression in Alzheimer's disease. J Alzheimers Dis 2015; 43:649-55. [PMID: 25114068 DOI: 10.3233/jad-140729] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
There is a strong genetic basis for late-onset Alzheimer's disease (LOAD); thus far 22 genes/loci have been identified that affect the risk of LOAD. However, the relationships among the genetic variations at these loci and clinical progression of the disease have not been fully explored. In the present study, we examined the relationships of 22 known LOAD genes to the progression of AD in 680 AD patients recruited from the University of Pittsburgh Alzheimer's Disease Research Center. Patients were classified as "rapid progressors" if the Mini-Mental State Examination (MMSE) changed ≥3 points in 12 months and "slow progressors" if the MMSE changed ≤2 points. We also performed a genome-wide association study in this cohort in an effort to identify new loci for AD progression. Association analysis between single nucleotide polymorphisms (SNPs) and the progression status of the AD cases was performed using logistic regression model controlled for age, gender, dementia medication use, psychosis, and hypertension. While no significant association was observed with either APOE*4 (p = 0.94) or APOE*2 (p = 0.33) with AD progression, we found multiple nominally significant associations (p < 0.05) either within or adjacent to seven known LOAD genes (INPP5D, MEF2C, TREM2, EPHA1, PTK2B, FERMT2, and CASS4) that harbor both risk and protective SNPs. Genome-wide association analyses identified four suggestive loci (PAX3, CCRN4L, PIGQ, and ADAM19) at p < 1E-05. Our data suggest that short-term clinical disease progression in AD has a genetic basis. Better understanding of these genetic factors could help to improve clinical trial design and potentially affect the development of disease modifying therapies.
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Affiliation(s)
- Xingbin Wang
- Department of Human Genetics, University of Pittsburgh, Pittsburgh, PA, USA Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA, USA
| | - Oscar L Lopez
- Department of Neurology, University of Pittsburgh, Pittsburgh, PA, USA Alzheimer's Disease Research Center, University of Pittsburgh, Pittsburgh, PA, USA
| | - Robert A Sweet
- Department of Neurology, University of Pittsburgh, Pittsburgh, PA, USA Alzheimer's Disease Research Center, University of Pittsburgh, Pittsburgh, PA, USA Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA VISN 4 Mental Illness Research, Education and Clinical Center (MIRECC), VA Pittsburgh Healthcare System, Pittsburgh, PA, USA
| | - James T Becker
- Department of Neurology, University of Pittsburgh, Pittsburgh, PA, USA Alzheimer's Disease Research Center, University of Pittsburgh, Pittsburgh, PA, USA
| | - Steven T DeKosky
- Department of Neurology, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Mahmud M Barmada
- Department of Human Genetics, University of Pittsburgh, Pittsburgh, PA, USA
| | - F Yesim Demirci
- Department of Human Genetics, University of Pittsburgh, Pittsburgh, PA, USA
| | - M Ilyas Kamboh
- Department of Human Genetics, University of Pittsburgh, Pittsburgh, PA, USA Alzheimer's Disease Research Center, University of Pittsburgh, Pittsburgh, PA, USA Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA
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20
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Zhang L, Xia L, Zhao L, Chen Z, Shang X, Xin J, Liu M, Guo X, Wu K, Pan Y, Fan D. Activation of PAX3-MET pathways due to miR-206 loss promotes gastric cancer metastasis. Carcinogenesis 2015; 36:390-9. [PMID: 25653235 DOI: 10.1093/carcin/bgv009] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
MicroRNAs (miRNAs) are thought to have an important role in tumor metastasis by regulating diverse cellular pathways. Here, we describe the function and regulation network of miR-206 in gastric cancer (GC) metastasis. MiR-206 expression was downregulated in GC cells especially in high metastatic potential cells and was also significantly decreased in metastatic lesions compared with their corresponding primary tumor samples. Both gain- and loss-of-function studies confirmed that miR-206 significantly suppressed GC cell invasion and metastasis both in vitro and in vivo. Mechanistically, paired box gene 3 (PAX3) was identified as a functional target of miR-206 in GC cells. MiR-206 inhibited GC metastasis by negatively regulating expression of PAX3. In addition, PAX3 expression was markedly higher in GC tissues than in adjacent non-cancerous tissues. GC patients with positive PAX3 expression had shorter overall survival times. Transwell assays and in vivo metastasis assays demonstrated that overexpression of PAX3 significantly promoted the invasiveness and pulmonary metastasis of GC cells. On the other hand, downregulation of PAX3 markedly reduced cell metastatic potential. Mechanistic investigations indicated that prometastasis function of PAX3 was mediated by upregulating downstream target MET. Moreover, we found that levels of PAX3 and MET were positively correlated in matched human GC specimens, and their coexpression was associated with poor prognoses. In conclusion, our results reveal that miR-206-PAX3-MET signaling is critical to GC metastasis. Targeting the pathway described here may open new therapeutic prospects to restrict the metastatic potential of GC.
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Affiliation(s)
- Lin Zhang
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 17 Changle Western Road, Xi'an, Shaanxi Province 710032, People's Republic of China, Medical Clinic of The Chinese People's Liberation Army General Political Department, 21 North Andeli Road, Beijing 100120, People's Republic of China
| | - Limin Xia
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 17 Changle Western Road, Xi'an, Shaanxi Province 710032, People's Republic of China
| | - Lina Zhao
- Department of Radiation Oncology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 17 Changle Western Road, Xi'an, Shaanxi Province 710032, People's Republic of China and
| | - Zhangqian Chen
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 17 Changle Western Road, Xi'an, Shaanxi Province 710032, People's Republic of China
| | - Xin Shang
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 17 Changle Western Road, Xi'an, Shaanxi Province 710032, People's Republic of China
| | - Jing Xin
- Engineering Research Center of Molecular and Neuro Imaging of Ministry of Education, School of Life Science and Technology, Xidian University, 2 South Taibai Road, Xi'an, Shaanxi Province 710071, People's Republic of China
| | - Muhan Liu
- Engineering Research Center of Molecular and Neuro Imaging of Ministry of Education, School of Life Science and Technology, Xidian University, 2 South Taibai Road, Xi'an, Shaanxi Province 710071, People's Republic of China
| | - Xuegang Guo
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 17 Changle Western Road, Xi'an, Shaanxi Province 710032, People's Republic of China
| | - Kaichun Wu
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 17 Changle Western Road, Xi'an, Shaanxi Province 710032, People's Republic of China
| | - Yanglin Pan
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 17 Changle Western Road, Xi'an, Shaanxi Province 710032, People's Republic of China,
| | - Daiming Fan
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, 17 Changle Western Road, Xi'an, Shaanxi Province 710032, People's Republic of China,
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