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Jichao W, Jing G, Fei W, Lei C, Qian L, Jie F, Hongyun W, Hua G, Yazhuo Z. miRNA-199a-5p functions as a tumor suppressor in prolactinomas. OPEN CHEM 2019. [DOI: 10.1515/chem-2019-0036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
AbstractProlactinomas are the most frequently observed pituitary adenomas (PAs), and 5%–18% tumors were resistant to the dopamine agonists (DAs). MicroRNAs (miRNAs) dysfunction play a key role in tumorigenesis. Agilent miRNA and an expression chip were used for six prolactinomas and three normal pituitary specimens. Differentially expressed genes were confirmed by RT-qPCR. The level of DDR1 and SAT1 was determined with tissue micro-array (TMA) and western blot. A MMQ cell line was used for functional experiments. We have identified 5-miRNA and 12 target gene signatures of prolactinomas through gene ontology analysis. miRNA-199a-5p was selected for experiments that integrated the results from prolactinomas specimens and a rat prolactinoma model induced by 17-b-estradiol. Tumors with low miRNA-199a-5p had a significantly invasive behavior and a higher tumor volume (p<0.05). DDR1 and SAT1, target genes of miRNA-199a-5p, had higher H-scores in the invasive group than those of the non-invasive group through TMA. An overexpression of miRNA-119a-5p suppressed the PRL secretion and the cell viability through upregulated the apoptosis level in MMQ cells (p<0.01). Furthermore, we found the target genes expression of DDR1 and SAT1 were affected by miRNA-199a-5p regardless of mRNA levels or protein levels. This study provided evidence that downregulation of miRNA-199a-5p may contribute to prolactinoma tumorigenesis.
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Affiliation(s)
- Wang Jichao
- Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
- Department of Neurosurgery, Xinjiang Uygur Autonomous Region People’s Hospital, Xinjiang, China
| | - Guo Jing
- Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Wang Fei
- Department of Neurosurgery, Provincial Hospital Affiliated to Anhui Medical University, Hefei, Anhui Province, China
| | - Cao Lei
- Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Liu Qian
- Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Feng Jie
- Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Wang Hongyun
- Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Gao Hua
- Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
- Key Laboratory of Central Nervous System Injury Research, Center of Brain Tumor of Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
| | - Zhang Yazhuo
- Beijing Neurosurgical Institute, Capital Medical University, Beijing, China
- Key Laboratory of Central Nervous System Injury Research, Center of Brain Tumor of Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
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Diao B, Liu Y, Xu GZ, Zhang Y, Xie J, Gong J. The role of galectin-3 in the tumorigenesis and progression of pituitary tumors. Oncol Lett 2018; 15:4919-4925. [PMID: 29545898 PMCID: PMC5840766 DOI: 10.3892/ol.2018.7931] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 11/02/2017] [Indexed: 12/19/2022] Open
Abstract
Galectin-3 (Gal-3), a β-galactoside-binding protein, has been implicated in cell proliferation, cell adhesion, and the progression and metastasis of various types of cancer. The present study investigated the involvement of Gal-3 in the tumorigenesis and progression of pituitary tumors using three rat pituitary tumor cell lines. Following transfection with Gal-3 expression and interference vectors, the impact of Gal-3 on proliferation, apoptosis and migration of pituitary tumor cells was been investigated. Meanwhile, BCL2 associated X, apoptosis regulator (Bax), caspase-3 and matrix metalloproteinase 7 (MMP7) protein expression levels were analyzed by western blotting. The results of the present study revealed that Gal-3 expression in GH3 and GH4C1 cells was higher than in RC-4B/C cells. Furthermore, Gal-3 was demonstrated to promote the proliferation and migration of GH3 and GH4C1 cells, and inhibit cell apoptosis. Caspase-3 and MMP7 protein expression was also increased by Gal-3, while Bax expression was decreased. These results suggested that Gal-3 serves an important function in the tumorigenesis and development of pituitary tumors, and it may be a useful target for the treatment of pituitary tumors in the future.
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Affiliation(s)
- Bo Diao
- Department of Neurosurgery, Wuhan General Hospital of Guangzhou Command and Hubei Key Laboratory of Central Nervous System Tumor and Intervention, Wuhan, Hubei 430070, P.R. China
| | - Ying Liu
- Department of Clinical Laboratory, Wuhan General Hospital of Guangzhou Command, Wuhan, Hubei 430070, P.R. China
| | - Guo-Zheng Xu
- Department of Neurosurgery, Wuhan General Hospital of Guangzhou Command and Hubei Key Laboratory of Central Nervous System Tumor and Intervention, Wuhan, Hubei 430070, P.R. China
| | - Yi Zhang
- Department of Clinical Experiment, Wuhan General Hospital of Guangzhou Command, Wuhan, Hubei 430070, P.R. China
| | - Jun Xie
- Department of Science and Training, Wuhan General Hospital of Guangzhou Command, Wuhan, Hubei 430070, P.R. China
| | - Jie Gong
- Department of Neurosurgery, Wuhan General Hospital of Guangzhou Command and Hubei Key Laboratory of Central Nervous System Tumor and Intervention, Wuhan, Hubei 430070, P.R. China
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Liu LB, Liu T, Xin FZ. Correlations of ICAM-1 gene polymorphisms with susceptibility and multidrug resistance in colorectal cancer in a Chinese population. Medicine (Baltimore) 2017; 96:e7481. [PMID: 28816939 PMCID: PMC5571676 DOI: 10.1097/md.0000000000007481] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Colorectal cancer (CRC) is a malignant gastrointestinal tumor with a high mortality rate, including both colon and rectal cancer. In order to provide clinical guidance for the treatment of CRC, this study is conducted to investigate the correlations of intercellular adhesion molecule 1 (ICAM-1) gene polymorphisms with susceptibility and multidrug resistance (MDR) of colorectal cancer (CRC). METHODS A total of 195 patients with CRC were selected as the observation group and 188 healthy people enrolled as the control group. Polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) was used to test ICAM-1 A13848G and K469E polymorphisms. The expressions of MDR-associated protein topoisomerase II (Topo II) and P-glycoprotein (P-gp) in CRC tissues were detected by immunohistochemistry. The analysis on association of clinical indexes of CRC patients with ICAM-1 gene polymorphisms was performed. RESULTS The frequencies of KK genotype and K allele of K469E in the observation group were significantly higher than that in the control group. KE + EE genotype and E allele might be protective factors for CRC. The distribution of genotypes, K469E KK and KE+EE, was highly correlated with histologic grade of tumor differentiation. Compared with adjacent normal tissues, positive rates of Topo II and P-gp expression were significantly increased in CRC tissues. Topo II expression in CRC patients was positively associated with lymph node metastasis and depth of tumor invasion, whereas P-gp expression was only associated with depth of tumor invasion. Higher positive rates of Topo II and P-gp expression were observed in ICAM-1 K469E KK genotype carriers, indicating that ICAM-1 K469E KK genotype might be related to MDR in CRC. CONCLUSION These findings in the current study suggested that ICAM-1 K469E polymorphism is highly correlated with susceptibility and MDR in CRC.
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Affiliation(s)
- Lu-Bing Liu
- Department of Anorectal, Liaocheng People's Hospital, Liaocheng, P.R. China
| | - Tong Liu
- Department of Cardiovascular Medicine, Beijing Hospital Affiliated to Peking Union Medical College, Beijing
| | - Fu-Ze Xin
- Department of Gastrointestinal Surgery, Liaocheng People's Hospital, Liaocheng, P.R. China
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Zhou K, Fan YD, Duysenbi S, Wu PF, Feng ZH, Qian Z, Zhang TR. siRNA-mediated silencing of bFGF gene inhibits the proliferation, migration, and invasion of human pituitary adenoma cells. Tumour Biol 2017; 39:1010428317704805. [PMID: 28656882 DOI: 10.1177/1010428317704805] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- Kai Zhou
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, P.R. China
| | - Yan-Dong Fan
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, P.R. China
| | - Serick Duysenbi
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, P.R. China
| | - Peng-Fei Wu
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, P.R. China
| | - Zhao-Hai Feng
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, P.R. China
| | - Zheng Qian
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, P.R. China
| | - Ting-Rong Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, P.R. China
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Zhang T, Yang Z, Gao H. Advancements in the study of miRNA regulation during the cell cycle in human pituitary adenomas. J Neurooncol 2017; 134:253-258. [PMID: 28577032 PMCID: PMC5570781 DOI: 10.1007/s11060-017-2518-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Accepted: 05/29/2017] [Indexed: 01/20/2023]
Abstract
Pituitary adenomas (PAs), single-clone adenomas arising from pituitary gland cells, comprise one of the most frequent tumors found in the sella region. The prevalence of PAs is approximately 15%, third only after gliomas and meningioma among intracranial tumors. Autopsy and radiological analysis found that the incidence of PAs is approximately 22.5%. Most PAs are benign, although a few are malignant. Just 0.1% of patients with PAs develop pituitary carcinoma. However, owing to mass effects and unregulated secretion of pituitary hormones, PAs also lead to serious morbidity. The low rate of diagnosis at onset and the lack of effective treatments for patients with recurrent disease increase the morbidity rates. Therefore, there is an urgent need to ascertain the pathological mechanism of PAs for improved diagnosis and development of specific therapies. At present, the pathogenesis of PAs is poorly understood; however, disruption of the cell cycle is known to play an important role. MicroRNAs are short noncoding RNAs that regulate gene expression at the post-transcriptional level and play a role in regulating genes involved in carcinogenesis or tumor suppression. Previous studies have demonstrated a strong connection between dysregulation of microRNAs and dysregulation of the cell cycle in PAs. In this review, we summarize the recent progress in the study of microRNA dysregulation resulting in disruption of the cell cycle in PAs.
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Affiliation(s)
- Ting Zhang
- Central Laboratory, Jiangyin People's Hospital Affiliated to Nantong University, Shoushanlu No. 163, Jiangyin, Wuxi, China
| | - Zijiang Yang
- Medical School of Nantong University, Qixiu Road No. 19, Nantong, China
- Neurosurgery, The First People's Hospital of Kunshan, Qianjinxilu No. 91, Kunshan, Suzhou, China
| | - Heng Gao
- Neurosurgery, Jiangyin People's Hospital Affiliated to Nantong University, Shoushanlu No. 163, Jiangyin, Wuxi, China.
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Zhou W, Ma CX, Xing YZ, Yan ZY. Identification of candidate target genes of pituitary adenomas based on the DNA microarray. Mol Med Rep 2016; 13:2182-6. [PMID: 26782791 DOI: 10.3892/mmr.2016.4785] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 09/03/2015] [Indexed: 11/06/2022] Open
Abstract
The present study aimed to explore molecular mechanisms involved in pituitary adenomas (PAs) and to discover target genes for their treatment. The gene expression profile GSE4488 was downloaded from the Gene Expression Omnibus database. Differentially expressed genes (DEGs) were identified using the Limma package and analyzed by two‑dimensional hierarchical clustering. Gene ontology (GO) and pathway enrichment analyses were performed in order to investigate the functions of DEGs. Subsequently, the protein‑protein interaction (PPI) network was constructed using Cytoscape software. DEGs were then mapped to the connectivity map database to identify molecular agents associated with the underlying mechanisms of PAs. A total of 340 upregulated and 49 downregulated DEGs in PA samples compared with those in normal controls were identified. Hierarchical clustering analysis showed that DEGs were highly differentially expressed, indicating their aptness for distinguishing PA samples from normal controls. Significant gene ontology terms were positive regulation of immune system-associated processes for downregulated DEGs and skeletal system development for upregulated DEGs. Pathways significantly enriched by DEGs included extracellular matrix (ECM)‑receptor interaction, the Hedgehog (Hh) signaling pathway and neuroactive ligand‑receptor interaction. The PPI network was constructed with 117 nodes, 123 edges and CD44 and Gli2 as hub nodes. Furthermore, depudecin, a small molecule drug, was identified to be mechanistically associated with PA. The genes CD44 and Gli2 have important roles in the progression of PAs via ECM‑receptor interaction and the Hh signaling pathway and are therefore potential target genes of PA. In addition, depudecin may be a candidate drug for the treatment of PAs.
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Affiliation(s)
- Wei Zhou
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China
| | - Chun-Xiao Ma
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China
| | - Ya-Zhou Xing
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China
| | - Zhao-Yue Yan
- Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China
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Andreeva K, Soliman MM, Cooper NGF. Regulatory networks in retinal ischemia-reperfusion injury. BMC Genet 2015; 16:43. [PMID: 25902940 PMCID: PMC4424502 DOI: 10.1186/s12863-015-0201-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Accepted: 04/14/2015] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Retinal function is ordered by interactions between transcriptional and posttranscriptional regulators at the molecular level. These regulators include transcription factors (TFs) and posttranscriptional factors such as microRNAs (miRs). Some studies propose that miRs predominantly target the TFs rather than other types of protein coding genes and such studies suggest a possible interconnection of these two regulators in co-regulatory networks. RESULTS Our lab has generated mRNA and miRNA microarray expression data to investigate time-dependent changes in gene expression, following induction of ischemia-reperfusion (IR) injury in the rat retina. Data from different reperfusion time points following retinal IR-injury were analyzed. Paired expression data for miRNA-target gene (TG), TF-TG, miRNA-TF were used to identify regulatory loop motifs whose expressions were altered by the IR injury paradigm. These loops were subsequently integrated into larger regulatory networks and biological functions were assayed. Systematic analyses of the networks have provided new insights into retinal gene regulation in the early and late periods of IR. We found both overlapping and unique patterns of molecular expression at the two time points. These patterns can be defined by their characteristic molecular motifs as well as their associated biological processes. We highlighted the regulatory elements of miRs and TFs associated with biological processes in the early and late phases of ischemia-reperfusion injury. CONCLUSIONS The etiology of retinal ischemia-reperfusion injury is orchestrated by complex and still not well understood gene networks. This work represents the first large network analysis to integrate miRNA and mRNA expression profiles in context of retinal ischemia. It is likely that an appreciation of such regulatory networks will have prognostic potential. In addition, the computational framework described in this study can be used to construct miRNA-TF interactive systems networks for various diseases/disorders of the retina and other tissues.
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Affiliation(s)
- Kalina Andreeva
- Department of Anatomical Science and Neurobiology, University of Louisville, School of Medicine, 500 S. Preston Street, Louisville, KY, 40292, USA.
| | - Maha M Soliman
- Department of Anatomical Science and Neurobiology, University of Louisville, School of Medicine, 500 S. Preston Street, Louisville, KY, 40292, USA.
| | - Nigel G F Cooper
- Department of Anatomical Science and Neurobiology, University of Louisville, School of Medicine, 500 S. Preston Street, Louisville, KY, 40292, USA.
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Banwait JK, Bastola DR. Contribution of bioinformatics prediction in microRNA-based cancer therapeutics. Adv Drug Deliv Rev 2015; 81:94-103. [PMID: 25450261 DOI: 10.1016/j.addr.2014.10.030] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 10/13/2014] [Accepted: 10/30/2014] [Indexed: 12/15/2022]
Abstract
Despite enormous efforts, cancer remains one of the most lethal diseases in the world. With the advancement of high throughput technologies massive amounts of cancer data can be accessed and analyzed. Bioinformatics provides a platform to assist biologists in developing minimally invasive biomarkers to detect cancer, and in designing effective personalized therapies to treat cancer patients. Still, the early diagnosis, prognosis, and treatment of cancer are an open challenge for the research community. MicroRNAs (miRNAs) are small non-coding RNAs that serve to regulate gene expression. The discovery of deregulated miRNAs in cancer cells and tissues has led many to investigate the use of miRNAs as potential biomarkers for early detection, and as a therapeutic agent to treat cancer. Here we describe advancements in computational approaches to predict miRNAs and their targets, and discuss the role of bioinformatics in studying miRNAs in the context of human cancer.
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Affiliation(s)
- Jasjit K Banwait
- College of Information Science and Technology, University of Nebraska at Omaha, 1110 South 67th Street, PKI 172, Omaha, NE 68106, USA.
| | - Dhundy R Bastola
- College of Information Science and Technology, University of Nebraska at Omaha, 1110 South 67th Street, PKI 172, Omaha, NE 68106, USA.
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