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Taha M, Yousef E, Badr AN, Salama RA, Maurice N. Expression profile and functional analysis of miR-301b in patients with breast cancer: A bioinformatics, biochemical, and histopathological study. Pathol Res Pract 2024; 262:155536. [PMID: 39173462 DOI: 10.1016/j.prp.2024.155536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Revised: 07/25/2024] [Accepted: 08/11/2024] [Indexed: 08/24/2024]
Abstract
BACKGROUND microRNAs (miRNAs) are crucial regulators of various biological processes and molecular functions. Aberrant miRNA expression has been linked in many studies to neoplastic transformation. Among these miRNAs, dysregulation of miR-301b-5p was associated with different types of cancer including breast cancer. Although many research works have investigated the function of miR-301b in carcinogenesis, few have examined its expression, biological, and clinical implications in breast cancer. METHODS we examined the expression levels of miR-301b-5p in human cancerous breast tissue compared to normal breast controls using different bioinformatic tools and RT-qPCR analyses. RESULTS we detected that miR-301b-5p was differentially expressed in cancerous breast tissue when compared to normal controls. MiR-301b-5p was detected to be upregulated in high-grade (Grade 3) and triple-negative breast cancers. A significant strong positive correlation was detected between miR-301b and Ki-67, the commonly used proliferative marker in breast cancer. Bioinformatics analyses using the KM plotter revealed that miR-301b has significant prognostic power in assessing the OS of patients with breast cancer. The study also identified many fundamental biological processes and regulatory pathways associated with the investigated miR-301b-related hub genes. Interestingly, the expression pattern and prognostic significance of PTEN, the top hub gene regulated by miR-301b, highlighted the prognostic significance of PTEN in breast cancer. CONCLUSION The current study findings suggest the potential use of miR-301b-5p as a possible diagnostic and prognostic biomarker in breast cancer. Moreover, this study emphasized the clinical and biological relevance of miR-301b-5p in breast cancer.
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Affiliation(s)
- Mohamed Taha
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt.
| | - Einas Yousef
- Department of Histology and Cell Biology, Faculty of Medicine, Menoufia University, Shebin Elkom 3251, Egypt
| | | | - Rasha A Salama
- College of Medicine, Ras Al khaimah Medical and Health Science University, UAE; Department of Community Medicine, Kasr Al Ainy Faculty of Medicine, Cairo University, Egypt
| | - Nadine Maurice
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
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Alfaifi J. miRNAs Role in Wilms tumor pathogenesis: Signaling pathways interplay. Pathol Res Pract 2024; 256:155254. [PMID: 38460245 DOI: 10.1016/j.prp.2024.155254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 03/01/2024] [Accepted: 03/04/2024] [Indexed: 03/11/2024]
Abstract
Wilms' tumors (WTs) are the most common type of kidney tumor in children, and a negative outlook is generally associated with widespread anaplastic. MicroRNAs (miRNAs) are crucial in the development of WT by regulating the expression of specific genes. There is an increasing amount of research that connects the dysregulation of miRNAs to the development of various renal illnesses. The conditions encompassed are renal fibrosis, renal cancers, and chronic and polycystic kidney disease. Dysregulation of several important miRNAs, either oncogenic or tumor-suppressing, has been found in WT. The present state of knowledge on the involvement of dysregulated miRNAs in the progression of WT is summarized in this review.
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Affiliation(s)
- Jaber Alfaifi
- Department of Child Health, College of Medicine, University of Bisha, Bisha 61922, Saudi Arabia.
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microRNAs Associated with Gemcitabine Resistance via EMT, TME, and Drug Metabolism in Pancreatic Cancer. Cancers (Basel) 2023; 15:cancers15041230. [PMID: 36831572 PMCID: PMC9953943 DOI: 10.3390/cancers15041230] [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: 01/12/2023] [Revised: 02/13/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023] Open
Abstract
Despite extensive research, pancreatic cancer remains a lethal disease with an extremely poor prognosis. The difficulty in early detection and chemoresistance to therapeutic agents are major clinical concerns. To improve prognosis, novel biomarkers, and therapeutic strategies for chemoresistance are urgently needed. microRNAs (miRNAs) play important roles in the development, progression, and metastasis of several cancers. During the last few decades, the association between pancreatic cancer and miRNAs has been extensively elucidated, with several miRNAs found to be correlated with patient prognosis. Moreover, recent evidence has revealed that miRNAs are intimately involved in gemcitabine sensitivity and resistance through epithelial-to-mesenchymal transition, the tumor microenvironment, and drug metabolism. Gemcitabine is the gold standard drug for pancreatic cancer treatment, but gemcitabine resistance develops easily after chemotherapy initiation. Therefore, in this review, we summarize the gemcitabine resistance mechanisms associated with aberrantly expressed miRNAs in pancreatic cancer, especially focusing on the mechanisms associated with epithelial-to-mesenchymal transition, the tumor microenvironment, and metabolism. This novel evidence of gemcitabine resistance will drive further research to elucidate the mechanisms of chemoresistance and improve patient outcomes.
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LncRNA MBNL1-AS1 Suppresses Cell Proliferation and Metastasis of Pancreatic Adenocarcinoma through Targeting Carcinogenic miR-301b-3p. Genet Res (Camb) 2023; 2023:6785005. [PMID: 36908851 PMCID: PMC9995204 DOI: 10.1155/2023/6785005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 01/20/2023] [Accepted: 02/13/2023] [Indexed: 03/05/2023] Open
Abstract
Pancreatic adenocarcinoma (PAAD) has been a huge challenge to public health due to its increasing incidence, frequent early metastasis, and poor outcome. The molecular basis of tumorigenesis and metastasis in PAAD is largely unclear. Here, we identified a novel tumor-suppressor long noncoding RNA (lncRNA) MBNL1-AS1, in PAAD and revealed its downstream mechanism. Quantitative real-time PCR (qRT-PCR) data showed that MBNL1-AS1 expression was significantly downregulated in PAAD tissues and cells, which was closely associated with metastasis and poor prognosis. Cell counting kit-8 (CCK-8) assay, transwell assay, and western blot verified that overexpression of MBNL1-AS1 suppressed cell proliferation, migration, and epithelial mesenchymal transformation (EMT) behavior in PAAD cells. By using a dual luciferase reporter gene system, we confirmed that miR-301b-3p was a direct target of MBNL1-AS1. Further mechanismic study revealed that upregulation of miR-301b-3p abolished the inhibitory effect of MBNL1-AS1 overexpression on cell proliferation, tumorigenesis, migration and EMT. Our results demonstrate that MBNL1-AS1 plays a tumor-suppressive role in PAAD mainly by downregulating miR-301b-3p, providing a novel therapeutic target for PAAD.
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miR-294 and miR-410 Negatively Regulate Tnfa, Arginine Transporter Cat1/2, and Nos2 mRNAs in Murine Macrophages Infected with Leishmania amazonensis. Noncoding RNA 2022; 8:ncrna8010017. [PMID: 35202090 PMCID: PMC8875753 DOI: 10.3390/ncrna8010017] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/26/2021] [Accepted: 10/29/2021] [Indexed: 12/23/2022] Open
Abstract
MicroRNAs are small non-coding RNAs that regulate cellular processes by the post-transcriptional regulation of gene expression, including immune responses. The shift in the miRNA profiling of murine macrophages infected with Leishmania amazonensis can change inflammatory response and metabolism. L-arginine availability and its conversion into nitric oxide by nitric oxide synthase 2 (Nos2) or ornithine (a polyamine precursor) by arginase 1/2 regulate macrophage microbicidal activity. This work aimed to evaluate the function of miR-294, miR-301b, and miR-410 during early C57BL/6 bone marrow-derived macrophage infection with L. amazonensis. We observed an upregulation of miR-294 and miR-410 at 4 h of infection, but the levels of miR-301b were not modified. This profile was not observed in LPS-stimulated macrophages. We also observed decreased levels of those miRNAs target genes during infection, such as Cationic amino acid transporters 1 (Cat1/Slc7a1), Cat2/Slc7a22 and Nos2; genes were upregulated in LPS stimuli. The functional inhibition of miR-294 led to the upregulation of Cat2 and Tnfa and the dysregulation of Nos2, while miR-410 increased Cat1 levels. miR-294 inhibition reduced the number of amastigotes per infected macrophage, showing a reduction in the parasite growth inside the macrophage. These data identified miR-294 and miR-410 biomarkers for a potential regulator in the inflammatory profiles of microphages mediated by L. amazonensis infection. This research provides novel insights into immune dysfunction contributing to infection outcomes and suggests the use of the antagomiRs/inhibitors of miR-294 and miR-410 as new therapeutic strategies to modulate inflammation and to decrease parasitism.
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Abstract
ABSTRACT Pancreatic cancer is one of the most aggressive malignancies. The poor prognosis of pancreatic cancer patients is mainly attributed to low diagnostic rate at the early stage, highly aggressive nature coupled with the inadequate efficacy of current chemotherapeutic regimens. Novel therapeutic strategies are urgently needed for pancreatic cancer. MicroRNAs (miRNAs) play an important regulatory role in key processes of cancer development. The aberrant expression of miRNAs is often involved in the initiation, progression, and metastasis of pancreatic cancer. The discovery of tumor suppressor miRNAs provides prospects for the development of a novel treatment strategy for pancreatic cancer. We reviewed recent progress on the understanding of the role of miRNAs in pancreatic cancer, highlighted the efficient application of miRNAs-based therapies for pancreatic cancer in animal models and clinical trials, and proposed future prospects. This review focuses on the promise of integrating miRNAs into the treatment of pancreatic cancer and provides guidance for the development of precision medicine for pancreatic cancer.
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Fu G, Pei Z, Song N. Oncogenic microRNA-301b regulates tumor repressor dystrobrevin alpha to facilitate cell growth, invasion and migration in esophageal cancer. Esophagus 2021; 18:315-325. [PMID: 32737801 DOI: 10.1007/s10388-020-00764-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 07/24/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Esophageal cancer (EC) ranks the eighth in morbidity and the sixth in mortality around the whole world, which is an aggressive malignancy. To authenticate potential therapeutic targets for EC is therefore imperative. Although miR-301b might display changed expression in esophageal adenocarcinoma by utilizing Taqman miRNA profiling analysis, much less is known about the impact of miR-301b in EC. METHODS AND RESULTS By analyzing the data of 187 cancer tissues and 13 normal samples from TCGA database, we discovered that miR-301b was highly expressed in EC tissues. Then, RT-qPCR determined that miR-301b was up-regulated in EC cell lines (ECA109, JAR, TE-1 and OE33). Besides, miR-301b expression level was higher in ESCC cell line-TE-1 cells and lower in ESCC cell line-ECA109 cells compared to other EC cell lines. Hence, ECA109 cell line was used to up-regulate miR-301b expression while TE-1 cell line was applied to down-regulate miR-301b expression in the subsequent experiments. Additionally, OE33, as an ECA cell line, was applied to upregulate miR-301b expression to reflect the influence of miR-301b overexpression on EC progression. More interestingly, miR-301b appeared to act as a promoting effect on the proliferation of EC cells, which was tested by CCK8. Dystrobrevin alpha (DTNA) was a targeting gene of miR-301b, which was predicted by the websites of miRanda, miRWalk and TargetScan. Additionally, DTNA was low expressed in EC tissues and was an independent predictor of EC. Meanwhile, the low expression of DTNA was related to worse overall survival in EC patients. The Pearson correlation coefficient analyzed that DTNA expression was negatively correlated with miR-301b. Furthermore, RT-qPCR and western blotting assays ulteriorly indicated that DTNA was negatively modulated by miR-301b. The facilitating impact of miR-301b re-expression on ECA109 and OE33 cell growth, invasion and migration was receded by DTNA over-expression, whilst the repressive effect of miR-301b ablation on TE-1 cell growth, invasion and migration was inversed by DTNA silencing. Overexpression of miR-301b accelerated EC cell growth, migration and invasion through targeting DTNA. CONCLUSIONS Above all, we concluded that miR-301b was concerned with the progression of EC via regulating DTNA, suggesting that miR-301b and its target gene, DTNA, might serve as predictive biomarkers for EC therapy.
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Affiliation(s)
- Gui Fu
- Department of Thoracic Surgery, Luoyang Central Hospital Affiliated to Zhengzhou University, No. 288 Zhong Zhou Zhong Road, Luoyang, 471000, Henan, People's Republic of China
| | - Zhidong Pei
- Department of Thoracic Surgery, Luoyang Central Hospital Affiliated to Zhengzhou University, No. 288 Zhong Zhou Zhong Road, Luoyang, 471000, Henan, People's Republic of China
| | - Nasha Song
- Department of Thoracic Surgery, Luoyang Central Hospital Affiliated to Zhengzhou University, No. 288 Zhong Zhou Zhong Road, Luoyang, 471000, Henan, People's Republic of China.
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Crosstalk between miRNAs and signaling pathways involved in pancreatic cancer and pancreatic ductal adenocarcinoma. Eur J Pharmacol 2021; 901:174006. [PMID: 33711308 DOI: 10.1016/j.ejphar.2021.174006] [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: 08/19/2020] [Revised: 01/19/2021] [Accepted: 03/02/2021] [Indexed: 02/08/2023]
Abstract
Pancreatic cancer (PC) is the seventh leading cause of cancer-related deaths worldwide with 5-year survival rates below 8%. Most patients with PC and pancreatic ductal adenocarcinoma (PDAC) die after relapse and cancer progression as well as resistance to treatment. Pancreatic tumors contain a high desmoplastic stroma that forms a rigid mass and has a potential role in tumor growth and metastasis. PC initiates from intraepithelial neoplasia lesions leading to invasive cancer through various pathways. These lesions harbor particular changes in signaling pathways involved in the tumorigenesis process. These events affect both the epithelial cells, including the tumor and the surrounding stroma, and eventually lead to the formation of complex signaling networks. Genetic studies of PC have revealed common molecular features such as the presence of mutations in KRAS gene in more than 90% of patients, as well as the inactivation or deletion mutations of some tumor suppressor genes including TP53, CDKN2A, and SMAD4. In recent years, studies have also identified different roles of microRNAs in PC pathogenesis as well as their importance in PC diagnosis and treatment, and their involvement in various signaling pathways. In this study, we discussed the most common pathways involved in PC and PDAC as well as their role in tumorigenesis and progression. Furthermore, the miRNAs participating in the regulation of these signaling pathways in PC progression are summarized in this study. Therefore, understanding more about pathways involved in PC can help with the development of new and effective therapies in the future.
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Noncoding RNAs Associated with Therapeutic Resistance in Pancreatic Cancer. Biomedicines 2021; 9:biomedicines9030263. [PMID: 33799952 PMCID: PMC7998345 DOI: 10.3390/biomedicines9030263] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 02/26/2021] [Accepted: 03/02/2021] [Indexed: 02/06/2023] Open
Abstract
Therapeutic resistance is an inevitable impediment towards effective cancer therapies. Evidence accumulated has shown that the signaling pathways and related factors are fundamentally responsible for therapeutic resistance via regulating diverse cellular events, such as epithelial-to-mesenchymal transition (EMT), stemness, cell survival/apoptosis, autophagy, etcetera. Noncoding RNAs (ncRNAs) have been identified as essential cellular components in gene regulation. The expression of ncRNAs is altered in cancer, and dysregulated ncRNAs participate in gene regulatory networks in pathological contexts. An in-depth understanding of molecular mechanisms underlying the modulation of therapeutic resistance is required to refine therapeutic benefits. This review presents an overview of the recent evidence concerning the role of human ncRNAs in therapeutic resistance, together with the feasibility of ncRNAs as therapeutic targets in pancreatic cancer.
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Guo WL, Li N, Ma JL, Chen XM, Shi FY. Inhibiting microRNA-301b suppresses cell growth and targets RNF38 in cervical carcinoma. Kaohsiung J Med Sci 2020; 36:878-884. [PMID: 32643846 DOI: 10.1002/kjm2.12273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/04/2020] [Accepted: 06/16/2020] [Indexed: 01/04/2023] Open
Abstract
It has been reported microRNA-301b (miR-301b) was involved in the tumorigenesis of some cancers, but it has not been investigated in cervical carcinoma yet. In this study, miR-301b was found significantly upregulated in cervical carcinoma, and patients with high miR-301b expression had a shorter overall survival. When miR-301b was knocked down in cervical carcinoma cells, the cell growth could be significantly abolished. Our further studies showed miR-301b targeted RNF38, and inhibited its expression in cervical carcinoma cells. Moreover, RNF38 was found downregulated in cervical carcinoma, and miR-301b expression in cervical tissues was found negatively correlated with RNF38 expression. In addition, overexpression of RNF38 significantly inhibited cervical carcinoma cell growth, but overexpression of miR-301b suppressed RNF38-induced cell growth inhibition in cervical carcinoma. Collectively, this study suggested miR-301b could be a novel target for cervical carcinoma treatment.
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Affiliation(s)
- Wen-Ling Guo
- Department of Obstetrics, Binzhou Central Hospital, Binzhou, Shandong, China
| | - Ning Li
- Department of Obstetrics, Binzhou Central Hospital, Binzhou, Shandong, China
| | - Jian-Lin Ma
- Department of Emergency, Binzhou Central Hospital, Binzhou, Shandong, China
| | - Xue-Mei Chen
- Department of Obstetrics, Binzhou Central Hospital, Binzhou, Shandong, China
| | - Fan-Ying Shi
- Department of Obstetrics, Binzhou Central Hospital, Binzhou, Shandong, China
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Zhu J, Wang H, Liu H. Osteoclastic miR-301-b knockout reduces ovariectomy (OVX)-induced bone loss by regulating CYDR/NF-κB signaling pathway. Biochem Biophys Res Commun 2020; 529:35-42. [PMID: 32560816 DOI: 10.1016/j.bbrc.2020.05.111] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 05/16/2020] [Indexed: 02/07/2023]
Abstract
Postmenopausal osteoporosis (PMOP) is a frequent bone disorder responsible for an increased risk of disability to millions of individuals in the world. For identifying novel and effective targets to treat this disease, it is essential to explore the underlying molecular mechanisms. MicroRNAs (miRNAs) have been widely investigated due to their involvement in the pathophysiology of bone loss. In this study, we attempted to elucidate the role of miR-301-b in murine osteoclastogenesis. We found that miR-301-b expression was increased in the bone tissues from PMOP patients, along with up-regulated nuclear factor of activated T cells c1 (NFATC1), which were confirmed in ovariectomy (OVX)-induced mouse bone specimens and bone marrow-derived macrophages (BMMs). Osteoclastogenesis was found to be obviously suppressed by miR-301-b inhibitor, whereas being further promoted in BMMs transfected with miR-301-b mimic. The animal studies showed that osteoclastic miR-301-b knockout markedly up-regulated the bone mass by reducing osteoclastogenesis. Mechanistically, we found that cylindromatosis (CYLD) was a direct target of miR-301-b at the post-transcriptional level during osteoclastogenesis. The enhanced expression of CYLD led to a reduction of phosphorylated nuclear factor κB (NF-κB), along with remarkably decreased tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β). Finally, osteoclastic miR-301-b ablation evidently inhibited OVX-induced osteoclastogenesis, exhibiting protective effects against bone loss in rodent animals. Therefore, results in the study reported an important mechanism for osteoclastogenesis progression regulated by miR-301-b/CYLD/NF-κB pathway, which may be an effective therapeutic target for PMOP treatment.
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Affiliation(s)
- Jungao Zhu
- Department of Orthopedics, Zhejiang Hospital, Hangzhou City, Zhejiang Province, 310030, China
| | - Haisheng Wang
- Department of Orthopedics, Division of Orthopedics, Hainan Hospital, Chinese PLA (people's Liberation Army) General Hospital, Sanya City, Hainan Province, 572014, China
| | - Huashun Liu
- Department of Orthopedics, Zhejiang Hospital, Hangzhou City, Zhejiang Province, 310030, China.
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Guo Y, Yao B, Zhu Q, Xiao Z, Hu L, Liu X, Li L, Wang J, Xu Q, Yang L, Huang D. MicroRNA-301b-3p contributes to tumour growth of human hepatocellular carcinoma by repressing vestigial like family member 4. J Cell Mol Med 2019; 23:5037-5047. [PMID: 31207037 PMCID: PMC6653225 DOI: 10.1111/jcmm.14361] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 04/08/2019] [Accepted: 04/15/2019] [Indexed: 12/19/2022] Open
Abstract
MicroRNAs (miRNAs) are key regulators in the tumour growth and metastasis of human hepatocellular carcinoma (HCC). Increasing evidence suggests that miR-301b-3p functions as a driver in various types of human cancer. However, the expression pattern of miR-301b-3p and its functional role as well as underlying molecular mechanism in HCC remain poorly known. Our study found that miR-301b-3p expression was significantly up-regulated in HCC tissues compared to adjacent non-tumour tissues. Clinical association analysis revealed that the high level of miR-301b-3p closely correlated with large tumour size and advanced tumour-node-metastasis stages. Importantly, the high miR-301b-3p level predicted a prominent poorer overall survival of HCC patients. Knockdown of miR-301b-3p suppressed cell proliferation, led to cell cycle arrest at G2/M phase and induced apoptosis of Huh7 and Hep3B cells. Furthermore, miR-301b-3p knockdown suppressed tumour growth of HCC in mice. Mechanistically, miR-301b-3p directly bond to 3'UTR of vestigial like family member 4 (VGLL4) and negatively regulated its expression. The expression of VGLL4 mRNA was down-regulated and inversely correlated with miR-301b-3p level in HCC tissues. Notably, VGLL4 knockdown markedly repressed cell proliferation, resulted in G2/M phase arrest and promoted apoptosis of HCC cells. Accordingly, VGLL4 silencing rescued miR-301b-3p knockdown attenuated HCC cell proliferation, cell cycle progression and apoptosis resistance. Collectively, our results suggest that miR-301b-3p is highly expressed in HCC. miR-301b-3p facilitates cell proliferation, promotes cell cycle progression and inhibits apoptosis of HCC cells by repressing VGLL4.
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Affiliation(s)
- Yang Guo
- Graduate DepartmentBengBu Medical CollegeBengBuAnhui ProvinceChina
- Key Laboratory of Tumour Molecular Diagnosis and Individualized Medicine of Zhejiang ProvinceZhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College)HangzhouZhejiang ProvinceChina
| | - Bowen Yao
- Department of Hepatobiliary SurgeryThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anShaanxi ProvinceChina
| | - Qiaojuan Zhu
- Department of Second Clinical Medical CollegeZhejiang Chinese Medical UniversityHangzhouZhejiang ProvinceChina
| | - Zunqiang Xiao
- Department of Second Clinical Medical CollegeZhejiang Chinese Medical UniversityHangzhouZhejiang ProvinceChina
| | - Linjun Hu
- The Medical College of Qindao UniversityQindaoShandong ProvinceChina
| | - Xin Liu
- Key Laboratory of Tumour Molecular Diagnosis and Individualized Medicine of Zhejiang ProvinceZhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College)HangzhouZhejiang ProvinceChina
| | - Lijie Li
- Key Laboratory of Tumour Molecular Diagnosis and Individualized Medicine of Zhejiang ProvinceZhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College)HangzhouZhejiang ProvinceChina
| | - Jiahui Wang
- School of Basic Medical SciencesShandong UniversityJinanShandong ProvinceChina
| | - Qiuran Xu
- Key Laboratory of Tumour Molecular Diagnosis and Individualized Medicine of Zhejiang ProvinceZhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College)HangzhouZhejiang ProvinceChina
| | - Liu Yang
- Key Laboratory of Tumour Molecular Diagnosis and Individualized Medicine of Zhejiang ProvinceZhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College)HangzhouZhejiang ProvinceChina
| | - Dongsheng Huang
- Key Laboratory of Tumour Molecular Diagnosis and Individualized Medicine of Zhejiang ProvinceZhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College)HangzhouZhejiang ProvinceChina
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Hong X, Zhang Z, Pan L, Ma W, Zhai X, Gu C, Zhang Y, Bi X, Huang W, Pei H, Liu Z. MicroRNA-301b promotes the proliferation and invasion of glioma cells through enhancing activation of Wnt/β-catenin signaling via targeting Glypican-5. Eur J Pharmacol 2019; 854:39-47. [PMID: 30951720 DOI: 10.1016/j.ejphar.2019.03.057] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 03/14/2019] [Accepted: 03/28/2019] [Indexed: 02/08/2023]
Abstract
Accumulating evidence has suggested that Glypican-5 (GPC5) is a tumor suppressor gene in many types of cancers. However, whether GPC5 is involved in glioma remains unknown. This study was designed to explore the expression, biological function and regulatory mechanism of GPC5 in glioma. Our results demonstrated that GPC5 expression was significantly decreased in multiple glioma cell lines. Gain-of-function experiments showed that the ectopic expression of GPC5 markedly inhibited the proliferation, invasion and Wnt/β-catenin signaling of glioma cell lines. GPC5 was identified as a target gene of microRNA-301b (miR-301b). Further data showed that miR-301b expression was significantly up-regulated in glioma tissues and cell lines. In addition, miR-301b expression was inversely correlated with GPC5 expression in clinical glioma tissues. The overexpression of miR-301b promoted the proliferation, invasion and Wnt/β-catenin signaling of glioma cell lines, whereas the inhibition of miR-301b showed the opposite effect. However, the silencing of GPC5 significantly reversed the antitumor effect of miR-301b inhibition. Overall, our results revealed a tumor suppressive role of GPC5 in glioma and suggested that GPC5 expression was regulated by miR-301b. Our study indicates that the inhibition of miR-301b represses the proliferation and invasion of glioma cells by up-regulating GPC5 expression.
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Affiliation(s)
- Xin Hong
- Department of Emergency Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, PR China
| | - Zhengliang Zhang
- Department of Emergency Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, PR China
| | - Longfei Pan
- Department of Emergency Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, PR China
| | - Wei Ma
- Department of Emergency Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, PR China
| | - Xu Zhai
- Department of Emergency Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, PR China
| | - Changwei Gu
- Department of Emergency Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, PR China
| | - Yaru Zhang
- Department of Emergency Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, PR China
| | - Xiaoju Bi
- Department of Emergency Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, PR China
| | - Wan Huang
- Department of Emergency Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, PR China
| | - Honghong Pei
- Department of Emergency Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, PR China.
| | - Zhong Liu
- Department of Emergency Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710004, PR China.
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Li P, Xing W, Xu J, Yuan D, Liang G, Liu B, Ma H. microRNA-301b-3p downregulation underlies a novel inhibitory role of long non-coding RNA MBNL1-AS1 in non-small cell lung cancer. Stem Cell Res Ther 2019; 10:144. [PMID: 31113460 PMCID: PMC6528355 DOI: 10.1186/s13287-019-1235-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 03/31/2019] [Accepted: 04/14/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Non-small cell lung cancer (NSCLC) is the second most prevalent cause of cancer-related fatality. Long non-coding RNAs (lncRNAs) have been observed to exercise functions in NSCLC. Here, the current study aimed to explore the potential mechanism of lncRNA MBNL1-AS1 in NSCLC. METHODS Microarray analysis was performed to screen the differentially expressed lncRNA associated with NSCLC and its potential mechanism. The lncRNA MBNL1-AS1 expression was quantified in 56 paired NSCLC and adjacent normal tissue samples. In an attempt to outline the function of lncRNA MBNL1-AS1 in NSCLC and to identify the interaction among lncRNA MBNL1-AS1, microRNA-301b-3p (miR-301b-3p) and TGFBR2, ectopic expression, depletion, and reporter assay experiments were conducted to detect CSC proliferation, migration, invasion, drug resistance, and sphere formation in NSCLC. RESULTS Initially, the intersection among lncRNA MBNL1-AS1, miR-301b-3p, and TGFBR2 was observed in NSCLC. While a poor expression of lncRNA MBNL1-AS1 and TGFBR2, along with a high expression of miR-301b-3p was observed in NSCLC tissues. A demonstration of lncRNA MBNL1-AS1 restoration significantly decreased CSC proliferation, migration, invasion, drug resistance, and sphere formation in NSCLC. LncRNA MBNL1-AS1 functioned as a sponge of miR-301b-3p, which inverted the inhibitory role of lncRNA MBNL1-AS1 in CSC proliferation, migration, invasion, drug resistance, and sphere formation in NSCLC. LncRNA MBNL1-AS1 positively regulated TGFBR2 which was a target gene of miR-301b-3p. At last, upregulated lncRNA MBNL1-AS1 or depleted miR-301b-3p suppressed the xenograft tumor formation in vivo. CONCLUSION Collectively, the present study suggests an inhibitory role of lncRNA MBNL1-AS1 in CSC drug resistance of NSCLC by upregulating miR-301b-3p-targeted TGFBR2.
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Affiliation(s)
- Peng Li
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008 Henan Province People’s Republic of China
| | - Wenqun Xing
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008 Henan Province People’s Republic of China
| | - Jinliang Xu
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008 Henan Province People’s Republic of China
| | - Dongfeng Yuan
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008 Henan Province People’s Republic of China
| | - Guanghui Liang
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008 Henan Province People’s Republic of China
| | - Baoxing Liu
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008 Henan Province People’s Republic of China
| | - Haibo Ma
- Department of Thoracic Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127, Dongming Road, Jinshui District, Zhengzhou, 450008 Henan Province People’s Republic of China
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15
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Tang CZ, Zhang DF, Yang JT, Liu QH, Wang YR, Wang WS. Overexpression of microRNA-301b accelerates hippocampal microglia activation and cognitive impairment in mice with depressive-like behavior through the NF-κB signaling pathway. Cell Death Dis 2019; 10:316. [PMID: 30962417 PMCID: PMC6453902 DOI: 10.1038/s41419-019-1522-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 02/19/2019] [Accepted: 03/13/2019] [Indexed: 12/30/2022]
Abstract
Depression is a condition with a complex etiological pattern, whose effective treatments are highly limited. MicroRNAs (miRNAs) have been investigated in intensive studies owing to their involvement in pathophysiology of mood disorders. The current study aimed to elucidate the role of miR-301b in hippocampus in mouse models of depressive-like behavior. Microarray-based prediction identified the differentially expressed gene neuronal pentraxin II (NPTX2) related to mental depression. Next, the putative miR-301b binding sites on the 3'UTR of NPTX2 were verified. Then the effect of miR-301b on cognitive function of mice with depressive-like behavior was analyzed using the Morris water maze test. In addition, the regulation of miR-301b to NPTX2 and activation of NF-κB signaling pathway was assessed. Following that, the microglia activation and inflammation in hippocampus were evaluated, with the expressions of inflammatory factors being examined. At last, microglia were flow cytometrically sorted and the inflammatory reaction was also assessed in vitro. The obtained findings revealed that miR-301b targeted and negatively regulated NPTX2. Moreover, overexpressed miR-301b activated the NF-κB signaling pathway, as reflected by increasing protein expressions of p-NF-κB. Upregulated miR-301b accelerated cognitive impairment in mice with depressive-like behavior. In addition, overexpression of miR-301b activated microglia and stimulated inflammation in hippocampus, accompanied by enhanced release of tumor necrosis factor-α (TNF-α), interleukin-Iβ (IL-Iβ) and cyclooxygenase-2(COX-2). Taken together, the evidence provided by the current study indicated that overexpression of miR-301b augmented hippocampal microglia activation, thus exacerbating cognitive impairment and inflammation in mice with depressive-like behavior by activating the NF-κB signaling pathway.
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Affiliation(s)
- Chao-Zhi Tang
- Laboratory of Molecular Medicine, College of Life Science, Henan Normal University, 453007, Xinxiang, People's Republic of China
| | - Dong-Fang Zhang
- Laboratory of Molecular Medicine, College of Life Science, Henan Normal University, 453007, Xinxiang, People's Republic of China
| | - Jun-Tang Yang
- Laboratory of Molecular Medicine, College of Life Science, Henan Normal University, 453007, Xinxiang, People's Republic of China
| | - Qing-Hui Liu
- Laboratory of Molecular Medicine, College of Life Science, Henan Normal University, 453007, Xinxiang, People's Republic of China
| | - Ya-Ru Wang
- Laboratory of Molecular Medicine, College of Life Science, Henan Normal University, 453007, Xinxiang, People's Republic of China
| | - Wen-Sheng Wang
- Laboratory of Molecular Medicine, College of Life Science, Henan Normal University, 453007, Xinxiang, People's Republic of China.
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16
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Song H, Li D, Wu T, Xie D, Hua K, Hu J, Deng X, Ji C, Deng Y, Fang L. MicroRNA-301b promotes cell proliferation and apoptosis resistance in triple-negative breast cancer by targeting CYLD. BMB Rep 2019. [PMID: 30269739 PMCID: PMC6283026 DOI: 10.5483/bmbrep.2018.51.11.168] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Aberrant expression of microRNAs (miRNAs) plays important roles in carcinogenesis and tumor progression. However, the expression and biological role of miR-301b in triple-negative breast cancer (TNBC) remains unclear. Here we aimed to evaluate the roles and mechanisms of miR-301b in TNBC cells. miR-301b expression was assessed in TNBC specimens and cell lines by quantitative Real-Time PCR (qRT-PCR). TNBC cells were transfected with miR-301b mimics, inhibitors or Cylindromatosis (CYLD) small interfering RNA (siRNA) using Lipofectamine 2000. The functional roles of miR-301b were determined by cell proliferation, colony formation, and apoptosis assays. Western blots and qRT-PCR were used to measure the expression of mRNAs and proteins in the cells. We found that miR-301b was upregulated in TNBC specimens and cell lines. Overexpression of miR-301b promoted cell proliferation in TNBC cells, while inhibited the apoptosis induced by 5-FU. CYLD was downregulated by miR-301b at both mRNA and protein levels in TNBC cells. Dual-luciferase report assay confirmed that miR-301b downregulated CYLD by direct interaction with the 3′-untranslated region(3′-UTR) of CYLD mRNA. NF-κB activation was mechanistically associated with miR-301b-mediated downregulation of CYLD. However, inhibition of miR-301b reversed all the effects of miR-301b. In conclusion, miR-301b plays an oncogenic role in TNBC possibly by downregulating CYLD and subsequently activating NF-κB p65, and this may provide a novel therapeutic approach for TNBC.
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Affiliation(s)
- Hongming Song
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Dengfeng Li
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Tianqi Wu
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Dan Xie
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Kaiyao Hua
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Jiashu Hu
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Xiaochong Deng
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Changle Ji
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Yijun Deng
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Lin Fang
- Department of Breast and Thyroid Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
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17
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Funamizu N, Lacy CR, Kamada M, Yanaga K, Manome Y. MicroRNA-200b and -301 are associated with gemcitabine response as biomarkers in pancreatic carcinoma cells. Int J Oncol 2019; 54:991-1000. [PMID: 30628651 DOI: 10.3892/ijo.2019.4676] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 11/13/2018] [Indexed: 11/05/2022] Open
Abstract
Chemotherapy resistance (congenital or acquired) is one of the principal challenges for the treatment of pancreatic carcinoma. Recent evidence has demonstrated that epithelial to mesenchymal transition (EMT) is associated with chemoresistance in pancreatic carcinoma cells. However, the molecular mechanism underlying the development of chemoresistance remains unknown, and limited therapeutic options are available. Therefore, to anticipate individual chemosensitivity or acquired chemoresistance for patients with pancreatic carcinoma, predictive biomarkers are urgently required. Extensive evidence suggests that microRNAs (miRNAs) serve a crucial role in regulating EMT. The aim of this study was to examine the potential role of miRNA (miR)‑200b and miR‑301 in predicting the chemo‑responses to treatment for pancreatic carcinoma. The present results demonstrate that miR‑200b expression predicted chemo‑sensitivity and may have potential as a biomarker. In six different pancreatic carcinoma cell lines (Capan‑1, Capan‑2, Panc‑1, MIAPaCa‑2, BxPC‑3 and PL45 cells), the expression of miR‑200b correlated positively with chemosensitivity. Moreover, the enhanced expression of miR‑200b increased chemosensitivity and induced mesenchymal to epithelial transition. Conversely, miR‑301 modulated gemcitabine resistance and induced EMT through the downregulation of cadherin 1 expression. In addition, gemcitabine‑resistant cells (Capan‑2 and Panc‑1) exhibited upregulated miR‑301 expression and downregulated gemcitabine‑induced apoptosis. In summary, these two miRNAs may serve roles as biomarkers in pancreatic carcinoma, miR‑200b expression may predict chemosensitivity, and elevated miR‑301 expression may have potential applications in the prediction of acquired gemcitabine resistance.
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Affiliation(s)
- Naotake Funamizu
- Department of Surgery, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Curtis Ray Lacy
- Howard University School of Medicine, Washington DC 20059, USA
| | - Minori Kamada
- Department of Molecular Cell Biology, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Katsuhiko Yanaga
- Department of Surgery, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Yoshinobu Manome
- Department of Molecular Cell Biology, The Jikei University School of Medicine, Tokyo 105-8461, Japan
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18
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Song H, Li D, Wu T, Xie D, Hua K, Hu J, Deng X, Ji C, Deng Y, Fang L. MicroRNA-301b promotes cell proliferation and apoptosis resistance in triple-negative breast cancer by targeting CYLD. BMB Rep 2018; 51:602-607. [PMID: 30269739 PMCID: PMC6283026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 08/28/2018] [Accepted: 09/27/2018] [Indexed: 12/17/2023] Open
Abstract
Aberrant expression of microRNAs (miRNAs) plays important roles in carcinogenesis and tumor progression. However, the expression and biological role of miR-301b in triple-negative breast cancer (TNBC) remains unclear. Here we aimed to evaluate the roles and mechanisms of miR-301b in TNBC cells. miR-301b expression was assessed in TNBC specimens and cell lines by quantitative Real-Time PCR (qRT-PCR). TNBC cells were transfected with miR-301b mimics, inhibitors or Cylindromatosis (CYLD) small interfering RNA (siRNA) using Lipofectamine 2000. The functional roles of miR-301b were determined by cell proliferation, colony formation, and apoptosis assays. Western blots and qRT-PCR were used to measure the expression of mRNAs and proteins in the cells. We found that miR-301b was upregulated in TNBC specimens and cell lines. Overexpression of miR-301b promoted cell proliferation in TNBC cells, while inhibited the apoptosis induced by 5-FU. CYLD was downregulated by miR-301b at both mRNA and protein levels in TNBC cells. Dual-luciferase report assay confirmed that miR-301b downregulated CYLD by direct interaction with the 3'-untranslated region(3'-UTR) of CYLD mRNA. NF-κB activation was mechanistically associated with miR-301b-mediated downregulation of CYLD. However, inhibition of miR-301b reversed all the effects of miR-301b. In conclusion, miR-301b plays an oncogenic role in TNBC possibly by downregulating CYLD and subsequently activating NF-κB p65, and this may provide a novel therapeutic approach for TNBC. [BMB Reports 2018; 51(11): 602-607].
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Affiliation(s)
- Hongming Song
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072,
China
| | - Dengfeng Li
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072,
China
| | - Tianqi Wu
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072,
China
| | - Dan Xie
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072,
China
| | - Kaiyao Hua
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072,
China
| | - Jiashu Hu
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072,
China
| | - Xiaochong Deng
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072,
China
| | - Changle Ji
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072,
China
| | - Yijun Deng
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072,
China
| | - Lin Fang
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072,
China
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19
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Hu Y, Dingerdissen H, Gupta S, Kahsay R, Shanker V, Wan Q, Yan C, Mazumder R. Identification of key differentially expressed MicroRNAs in cancer patients through pan-cancer analysis. Comput Biol Med 2018; 103:183-197. [PMID: 30384176 DOI: 10.1016/j.compbiomed.2018.10.021] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 10/01/2018] [Accepted: 10/17/2018] [Indexed: 12/16/2022]
Abstract
microRNAs (miRNAs) functioning in gene silencing have been associated with cancer progression. However, common abnormal miRNA expression patterns and their potential roles in cancer have not yet been evaluated. To account for individual differences between patients, we retrieved miRNA sequencing data for 575 patients with both tumor and adjacent non-tumorous tissues from 14 cancer types from The Cancer Genome Atlas (TCGA). We then performed differential expression analysis using DESeq2 and edgeR. Results showed that cancer types can be grouped based on the distribution of miRNAs with different expression patterns between tumor and non-tumor samples. We found 81 significantly differentially expressed miRNAs (SDEmiRNAs) in a single cancer. We also found 21 key SDEmiRNAs (nine over-expressed and 12 under-expressed) associated with at least eight cancers each and enriched in more than 60% of patients per cancer, including four newly identified SDEmiRNAs (hsa-mir-4746, hsa-mir-3648, hsa-mir-3687, and hsa-mir-1269a). The downstream effects of these 21 SDEmiRNAs on cellular function were evaluated through enrichment and pathway analysis of 7186 protein-coding gene targets mined from literature reports of differential expression of miRNAs in cancer. This analysis enables identification of SDEmiRNA functional similarity in cell proliferation control across a wide range of cancers, and assembly of common regulatory networks over cancer-related pathways. These findings were validated by construction of a regulatory network in the PI3K pathway. This study provides evidence for the value of further analysis of SDEmiRNAs as potential biomarkers and therapeutic targets for cancer diagnosis and treatment.
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Affiliation(s)
- Yu Hu
- The Department of Biochemistry & Molecular Medicine, The George Washington University Medical Center, Washington, DC, 20037, USA.
| | - Hayley Dingerdissen
- The Department of Biochemistry & Molecular Medicine, The George Washington University Medical Center, Washington, DC, 20037, USA.
| | - Samir Gupta
- Department of Computer and Information Science, University of Delaware, Newark, DE, 19716, USA.
| | - Robel Kahsay
- The Department of Biochemistry & Molecular Medicine, The George Washington University Medical Center, Washington, DC, 20037, USA.
| | - Vijay Shanker
- Department of Computer and Information Science, University of Delaware, Newark, DE, 19716, USA.
| | - Quan Wan
- The Department of Biochemistry & Molecular Medicine, The George Washington University Medical Center, Washington, DC, 20037, USA.
| | - Cheng Yan
- The Department of Biochemistry & Molecular Medicine, The George Washington University Medical Center, Washington, DC, 20037, USA.
| | - Raja Mazumder
- The Department of Biochemistry & Molecular Medicine, The George Washington University Medical Center, Washington, DC, 20037, USA; The McCormick Genomic and Proteomic Center, The George Washington University, Washington, DC, 20037, USA.
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20
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Hu W, Liu Q, Pan J, Sui Z. MiR-373-3p enhances the chemosensitivity of gemcitabine through cell cycle pathway by targeting CCND2 in pancreatic carcinoma cells. Biomed Pharmacother 2018; 105:887-898. [PMID: 30021382 DOI: 10.1016/j.biopha.2018.05.091] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 05/19/2018] [Accepted: 05/20/2018] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVE This study aimed to detect the expression of miR-373-3p and CCND2 in gemcitabine-resistance pancreatic carcinoma (PC) cells, investigate the relationship between miR-373-3p and CCND2, and explore their effects on PC propagation, migration, invasion and apoptosis. METHODS R software was applied for analyzing differentially expressed genes (DEGs) in cell samples. The potential biological pathway was determined by Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis, based on R software. The gemcitabine-resistance PC cells were screened out using MTT assay, and they were applied in the next experiments. MiR-373-3p and CCND2 expression in GEM-PANC-1 cells were measured by qRT-PCR. After transfection, the expression of CCND2 protein was examined via western blot assay. Cells viability and apoptosis were confirmed by MTT proliferation assay and Flow cytometry, whereas cells migration and invasion were analyzed by transwell assay. The targeting relationship between miR-373-3p and CCND2 was identified by dual-luciferase reporter assay. RESULTS MiR-373-3p was found to be low expressed in GEM-PANC-1 cells while CCND2 was highly expressed in GEM-PANC-1 cells. MiR-373-3p negatively regulated CCND2 expression through KEGG_Cell_Cycle_Signaling_Pathway. The targeted relationship between miR-373-3p and CCND2 could be verified using dual luciferase reporter assay. MTT proliferation assay, transwell assay and Annexin V assay demonstrated that miR-373-3p suppressed GEM-PANC-1 cells propagation and invasion and promoted cell apoptosis, while CCND2 showed totally reverse effects compared with miR-373-3p. All the results suggested that miR-373-3p could enhance the chemosensitivity of GEM-PANC-1 cells by regulating CCND2. CONCLUSION MiR-373-3p inhibited cell propagation, migration and invasion and boosted apoptosis in gemcitabine resistance pancreatic carcinoma cells by targeting CCND2.
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Affiliation(s)
- Wenjie Hu
- Department of Pharmacy, Qingdao Mental Health Center, Qingdao, 266034, Shandong, China
| | - Qilong Liu
- Department of Pharmacy, Qingdao Mental Health Center, Qingdao, 266034, Shandong, China
| | - Jie Pan
- Department of Pharmacy, Qingdao Mental Health Center, Qingdao, 266034, Shandong, China
| | - Zheng Sui
- Department of Pharmacy, Qingdao Mental Health Center, Qingdao, 266034, Shandong, China.
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Fort RS, Mathó C, Oliveira-Rizzo C, Garat B, Sotelo-Silveira JR, Duhagon MA. An integrated view of the role of miR-130b/301b miRNA cluster in prostate cancer. Exp Hematol Oncol 2018; 7:10. [PMID: 29744254 PMCID: PMC5930504 DOI: 10.1186/s40164-018-0102-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 04/20/2018] [Indexed: 12/26/2022] Open
Abstract
Prostate cancer is a major health problem worldwide due to its high incidence morbidity and mortality. There is currently a need of improved biomarkers, capable to distinguish mild versus aggressive forms of the disease, and thus guide therapeutic decisions. Although miRNAs deregulated in cancer represent exciting candidates as biomarkers, its scientific literature is frequently fragmented in dispersed studies. This problem is aggravated for miRNAs belonging to miRNA gene clusters with shared target genes. The miRNA cluster composed by hsa-mir-130b and hsa-mir-301b precursors was recently involved in prostate cancer pathogenesis, yet different studies assigned it opposite effects on the disease. We sought to elucidate the role of the human miR-130b/301b miRNA cluster in prostate cancer through a comprehensive data analysis of most published clinical cohorts. We interrogated methylomes, transcriptomes and patient clinical data, unifying previous reports and adding original analysis using the largest available cohort (TCGA-PRAD). We found that hsa-miR-130b-3p and hsa-miR-301b-3p are upregulated in neoplastic vs normal prostate tissue, as well as in metastatic vs primary sites. However, this increase in expression is not due to a decrease of the global DNA methylation of the genes in prostate tissues, as the promoter of the gene remains lowly methylated in normal and neoplastic tissue. A comparison of the levels of human miR-130b/301b and all the clinical variables reported for the major available cohorts, yielded positive correlations with malignance, specifically significant for T-stage, residual tumor status and primary therapy outcome. The assessment of the correlations between the hsa-miR-130b-3p and hsa-miR-301b-3p and candidate target genes in clinical samples, supports their repression of tumor suppressor genes in prostate cancer. Altogether, these results favor an oncogenic role of miR-130b/301b cluster in prostate cancer.
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Affiliation(s)
- Rafael Sebastián Fort
- 1Laboratorio de Interacciones Moleculares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay.,2Depto. de Genética, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Cecilia Mathó
- 1Laboratorio de Interacciones Moleculares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay.,2Depto. de Genética, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Carolina Oliveira-Rizzo
- 1Laboratorio de Interacciones Moleculares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay.,2Depto. de Genética, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Beatriz Garat
- 1Laboratorio de Interacciones Moleculares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - José Roberto Sotelo-Silveira
- 3Depto. de Genómica, Instituto de Investigaciones Biológicas Clemente Estable, Ministerio de Educación y Cultura, Montevideo, Uruguay.,4Depto. de Biología Celular y Molecular, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - María Ana Duhagon
- 1Laboratorio de Interacciones Moleculares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay.,2Depto. de Genética, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
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Blood and lung microRNAs as biomarkers of pulmonary tumorigenesis in cigarette smoke-exposed mice. Oncotarget 2018; 7:84758-84774. [PMID: 27713172 PMCID: PMC5341294 DOI: 10.18632/oncotarget.12475] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 09/22/2016] [Indexed: 12/28/2022] Open
Abstract
Cigarette smoke (CS) is known to dysregulate microRNA expression profiles in the lungs of mice, rats, and humans, thereby modulating several pathways involved in lung carcinogenesis and other CS-related diseases. We designed a study aimed at evaluating (a) the expression of 1135 microRNAs in the lung of Swiss H mice exposed to mainstream CS during the first 4 months of life and thereafter kept in filtered air for an additional 3.5 months, (b) the relationship between lung microRNA profiles and histopathological alterations in the lung, (c) intergender differences in microRNA expression, and (d) the comparison with microRNA profiles in blood serum. CS caused multiple histopathological alterations in the lung, which were almost absent in sham-exposed mice. An extensive microRNA dysregulation was detected in the lung of CS-exposed mice. Modulation of microRNA profiles was specifically related to the histopathological picture, no effect being detected in lung fragments with non-neoplastic lung diseases (emphysema or alveolar epithelial hyperplasia), whereas a close association occurred with the presence and multiplicity of preneoplastic lesions (microadenomas) and benign lung tumors (adenomas). Three microRNAs regulating estrogen and HER2-dependent mechanisms were modulated in the lung of adenoma-bearing female mice. Blood microRNAs were also modulated in mice affected by early neoplastic lesions. However, there was a poor association between lung microRNAs and circulating microRNAs, which can be ascribed to an impaired release of mature microRNAs from the damaged lung. Studies in progress are evaluating the feasibility of analyzing blood microRNAs as a molecular tool for lung cancer secondary prevention.
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Yan L, Wang Y, Liang J, Liu Z, Sun X, Cai K. MiR-301b promotes the proliferation, mobility, and epithelial-to-mesenchymal transition of bladder cancer cells by targeting EGR1. Biochem Cell Biol 2017; 95:571-577. [PMID: 28521108 DOI: 10.1139/bcb-2016-0232] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
We investigated the role of miR-301b in the modulation of the proliferation, migration, and invasion of bladder cancer (BLCA) cells. The expression of miR-301b and EGR1 (early growth response gene 1) mRNA were analyzed by quantitative real-time polymerase chain reaction (qRT-PCR). A dual-luciferase reporter gene system was used to identify the target relationship between miR-301b and EGR1. Cell proliferation, cell cycle, and apoptosis were analyzed by MTT assay, colony-forming assay, and flow cytometry, respectively. Cell motility and invasiveness were assessed by wound healing and Transwell assays. The expression of proteins involved in epithelial-to-mesenchymal transition (EMT) and EGR1 were determined by Western blot. Our results showed that miR-301b was up-regulated while EGR1 was down-regulated in BLCA tissues compared with adjacent normal tissues. The proliferation, migration, and invasiveness of T24 cells (a kind of human BLCA cell) were suppressed by decreasing miR-301b expression or increasing EGR1 expression. In addition, miR-301b promoted EMT signaling by influencing the expression of related proteins. In conclusion, miR-301b promotes the proliferation, migration, and aggressiveness of human BLCA cells by inhibiting the expression of EGR1.
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Affiliation(s)
- Lei Yan
- a Department of Histology and Embryology, Mudanjiang Medical University, Mudanjiang 157011, Heilongjiang, China
| | - Yan Wang
- b Department of Pathogenic Microbiology and Immunology, Mudanjiang Medical University, Mudanjiang 157011, Heilongjiang, China
| | - Jun Liang
- a Department of Histology and Embryology, Mudanjiang Medical University, Mudanjiang 157011, Heilongjiang, China
| | - Zhixin Liu
- a Department of Histology and Embryology, Mudanjiang Medical University, Mudanjiang 157011, Heilongjiang, China
| | - Xiaodong Sun
- a Department of Histology and Embryology, Mudanjiang Medical University, Mudanjiang 157011, Heilongjiang, China
| | - Kerui Cai
- a Department of Histology and Embryology, Mudanjiang Medical University, Mudanjiang 157011, Heilongjiang, China
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24
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Song D, Diao J, Yang Y, Chen Y. MicroRNA‑382 inhibits cell proliferation and invasion of retinoblastoma by targeting BDNF‑mediated PI3K/AKT signalling pathway. Mol Med Rep 2017; 16:6428-6436. [PMID: 28901408 DOI: 10.3892/mmr.2017.7396] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 08/16/2017] [Indexed: 11/06/2022] Open
Abstract
It has previously been demonstrated that multiple microRNAs (miRNAs or miRs) are aberrantly expressed in retinoblastoma (RB) and contribute to RB initiation and progression. miR‑382 has been revealed to be aberrantly expressed and therefore exhibits a key role in the progression of various types of cancer. However, the expression pattern, functional roles and underlying molecular mechanism of miR‑382 in RB remain unknown. The present study investigated the expression levels of miR‑382 and its effects on RB cells and the underlying regulatory mechanism of its action. It was demonstrated that miR‑382 was downregulated in RB tissues and cell lines. Upregulation of miR‑382 inhibited RB cell proliferation and invasion in vitro. Additionally, brain‑derived neurotrophic factor (BDNF) was identified as a novel target of miR‑382 in RB. BDNF was upregulated in RB tissues and negatively associated with miR‑382 expression levels. Furthermore, BDNF overexpression rescued the tumour‑suppressing effects on RB cells induced by miR‑382. miR‑382 inactivated the phosphoinositide 3-kinase/protein kinase B (PI3K/AKT) signalling pathway in RB. These findings suggested that miR‑382 serves as a tumour suppressor in RB, in part, by targeting the BDNF‑mediated PI3K/AKT signalling pathway. The results of the present study suggest a potential therapeutic strategy for treating RB patients in the future.
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Affiliation(s)
- Dan Song
- Department of Ophthalmology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, P.R. China
| | - Jiandong Diao
- Department of Oncology and Hematology, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Yongjing Yang
- Department of Thoracic Oncology, Jilin Cancer Hospital, Changchun, Jilin 130012, P.R. China
| | - Yahong Chen
- Department of Colorectal Surgery, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
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25
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Wang K, Jin J, Ma T, Zhai H. MiR-139-5p inhibits the tumorigenesis and progression of oral squamous carcinoma cells by targeting HOXA9. J Cell Mol Med 2017; 21:3730-3740. [PMID: 28780773 PMCID: PMC5706525 DOI: 10.1111/jcmm.13282] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 05/23/2017] [Indexed: 12/27/2022] Open
Abstract
Our study sought to clarify the effects of microRNA-139-5p (miR-139-5p) in the tumorigenesis and progression of oral squamous cell carcinoma (OSCC) by regulating HOXA9. MiR-139-5p and HOXA9 expression in OSCC tissues, tumour adjacent tissues, OSCC cells and normal cells were tested by qRT-PCR. SAS and CAL-27 cell lines were selected in among four OSCC cell lines and then transfected with miR-139-5p mimics, pEGFP-HOXA9 and cotransfected with miR-139-5p mimics + pEGFP-HOXA9. We used MTT, colony formation, transwell and wound healing assays to analyse cell viability, proliferation, invasion and migration. The target relationship between miR-139-5p and HOXA9 was verified by luciferase reporter assay and Western blot, respectively. MiR-139-5p was down-regulated, whereas HOXA9 was up-regulated in OSCC tissues and cells. The proliferation, invasion and migration ability of SAS and CAL-27 cells in miR-139-5p mimics group were significantly weaker than those in the control group and the miR-NC group (P < 0.01). MiR-139-5p can negatively regulate HOXA9. The proliferation, invasion and migration of SAS and CAL-27 cells in the miR-139-5p mimics + pEGFP-HOXA9 group were not significantly different from those in the blank control and negative control groups (P > 0.05). Our results indicated that miR-139-5p could directly inhibit HOXA9, which might be a potential mechanism in inhibiting the proliferation, invasiveness and migration of OSCC cells.
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Affiliation(s)
- Kai Wang
- Department of Plastic Surgery, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Jun Jin
- Department of Plastic Surgery, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Tengxiao Ma
- Department of Plastic Surgery, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Hongfeng Zhai
- Department of Plastic Surgery, Henan Provincial People's Hospital, Zhengzhou, Henan, China
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26
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Olsen LC, O'Reilly KC, Liabakk NB, Witter MP, Sætrom P. MicroRNAs contribute to postnatal development of laminar differences and neuronal subtypes in the rat medial entorhinal cortex. Brain Struct Funct 2017; 222:3107-3126. [PMID: 28260163 PMCID: PMC5585308 DOI: 10.1007/s00429-017-1389-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 02/13/2017] [Indexed: 01/23/2023]
Abstract
The medial entorhinal cortex (MEC) is important in spatial navigation and memory formation and its layers have distinct neuronal subtypes, connectivity, spatial properties, and disease susceptibility. As little is known about the molecular basis for the development of these laminar differences, we analyzed microRNA (miRNA) and messenger RNA (mRNA) expression differences between rat MEC layer II and layers III–VI during postnatal development. We identified layer and age-specific regulation of gene expression by miRNAs, which included processes related to neuron specialization and locomotor behavior. Further analyses by retrograde labeling and expression profiling of layer II stellate neurons and in situ hybridization revealed that the miRNA most up-regulated in layer II, miR-143, was enriched in stellate neurons, whereas the miRNA most up-regulated in deep layers, miR-219-5p, was expressed in ependymal cells, oligodendrocytes and glia. Bioinformatics analyses of predicted mRNA targets with negatively correlated expression patterns to miR-143 found that miR-143 likely regulates the Lmo4 gene, which is known to influence hippocampal-based spatial learning.
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Affiliation(s)
- Lene C Olsen
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Kally C O'Reilly
- Kavli Institute for Systems Neuroscience and Centre for Neural Computation, Norwegian University for Science and Technology, Trondheim, Norway
| | - Nina B Liabakk
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Menno P Witter
- Kavli Institute for Systems Neuroscience and Centre for Neural Computation, Norwegian University for Science and Technology, Trondheim, Norway
| | - Pål Sætrom
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway. .,Department of Computer and Information Science, Norwegian University for Science and Technology, Trondheim, Norway. .,Bioinformatics core facility-BioCore, Norwegian University of Science and Technology, Trondheim, Norway.
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27
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Koduru SV, Tiwari AK, Leberfinger A, Hazard SW, Kawasawa YI, Mahajan M, Ravnic DJ. A Comprehensive NGS Data Analysis of Differentially Regulated miRNAs, piRNAs, lncRNAs and sn/snoRNAs in Triple Negative Breast Cancer. J Cancer 2017; 8:578-596. [PMID: 28367238 PMCID: PMC5370502 DOI: 10.7150/jca.17633] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 11/06/2016] [Indexed: 12/12/2022] Open
Abstract
Cancer is the second leading cause of death in the United States and is a major public health concern worldwide. Basic, clinical and epidemiological research is leading to improved cancer detection, prevention, and outcomes. Recent technological advances have allowed unbiased and comprehensive screening of genome-wide gene expression. Small non-coding RNAs (sncRNAs) have been shown to play an important role in biological processes and could serve as a diagnostic, prognostic and therapeutic biomarker for specific diseases. Recent findings have begun to reveal and enhance our understanding of the complex architecture of sncRNA expression including miRNAs, piRNAs, lncRNAs, sn/snoRNAs and their relationships with biological systems. We used publicly available small RNA sequencing data that was derived from 24 triple negative breast cancers (TNBC) and 14 adjacent normal tissue samples to remap various types of sncRNAs. We found a total of 55 miRNAs were aberrantly expressed (p<0.005) in TNBC samples (8 miRNAs upregulated; 47 downregulated) compared to adjacent normal tissues whereas the original study reported only 25 novel miRs. In this study, we used pathway analysis of differentially expressed miRNAs which revealed TGF-beta signaling pathways to be profoundly affected in the TNBC samples. Furthermore, our comprehensive re-mapping strategy allowed us to discover a number of other differentially expressed sncRNAs including piRNAs, lncRNAs, sn/snoRNAs, rRNAs, miscRNAs and nonsense-mediated decay RNAs. We believe that our sncRNA analysis workflow is extremely comprehensive and suitable for discovery of novel sncRNAs changes, which may lead to the development of innovative diagnostic and therapeutic tools for TNBC.
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Affiliation(s)
- Srinivas V Koduru
- Division of Plastic Surgery, Department of Surgery, College of Medicine, Pennsylvania State University, 500 University Drive, Hershey, PA 17033
| | - Amit K Tiwari
- Department of Pharmacology & Experimental Therapeutics, College of Pharmacy & Pharmaceutical Sciences, University of Toledo - Health Sciences Campus, 300 Arlington Ave, Toledo, OH 43614
| | - Ashley Leberfinger
- Division of Plastic Surgery, Department of Surgery, College of Medicine, Pennsylvania State University, 500 University Drive, Hershey, PA 17033
| | - Sprague W Hazard
- Department of Anesthesia, College of Medicine, Pennsylvania State University, 500 University Drive, Hershey, PA 17033
| | - Yuka Imamura Kawasawa
- Department of Pharmacology, Department of Biochemistry and Molecular Biology, and Institute for Personalized Medicine, Pennsylvania State University College of Medicine, 500 University Drive, Hershey, PA17033
| | - Milind Mahajan
- Genomics Facility, Department of Genetics and Genomics Sciences, Icahn School of Medicine, Mount Sinai, 1425 Madison Ave, New York, NY 10029
| | - Dino J Ravnic
- Division of Plastic Surgery, Department of Surgery, College of Medicine, Pennsylvania State University, 500 University Drive, Hershey, PA 17033
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28
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Zhao J, Xu T, Yin D, Zhang B, Bai J. The Regulatory Roles of MicroRNA in Effects of 2,2'4,4'-Tetrabromodiphenyl Ether (BDE47) on the Transcriptome of Zebrafish Larvae. PLoS One 2017; 12:e0169599. [PMID: 28072866 PMCID: PMC5225001 DOI: 10.1371/journal.pone.0169599] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 12/18/2016] [Indexed: 12/11/2022] Open
Abstract
The developmental neurotoxicity caused by environmental pollutants has received great concern; however, there were still barely known about the underlying toxic mechanisms, especially the influence of varieties of regulatory factors such as microRNA (miRNA). A representative flame retardant, 2,2′,4,4′-tetrabromodiphenyl ether (BDE47), was found to disrupt zebrafish development in visual perception and bone formation in previous study, thus here we investigated its effects on miRNA expression profiling of 6 days post fertilization (dpf) zebrafish larvae by deep sequencing. To overcome the shortage of zebrafish miRNA annotation, multiple data processing approaches, especially constructed network based on the interactions between miRNAs and enrichment terms, were adopted and helped us acquire several validated zebrafish miRNAs and two novel miRNAs in BDE47-induced effects, and identify corresponding biological processes of the miRNAs. Among them, miR-735 was supposed to play essential roles in larval sensory development according to analysis results. Our study also provided an effective strategy for analyzing biological effects on non-mammalian miRNAs with limited basic information.
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Affiliation(s)
- Jing Zhao
- Shanghai Collaborative Innovation Centre for WEEE Recycling, WEEE Research Centre of Shanghai Polytechnic University, Shanghai, China
| | - Ting Xu
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Technology, Tongji University, Shanghai, China
- * E-mail:
| | - Daqiang Yin
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Technology, Tongji University, Shanghai, China
| | - Bo Zhang
- Novel Bioinformatics Co., Ltd, Shanghai, China
| | - Jianfeng Bai
- Shanghai Collaborative Innovation Centre for WEEE Recycling, WEEE Research Centre of Shanghai Polytechnic University, Shanghai, China
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29
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Grimes JA, Prasad N, Levy S, Cattley R, Lindley S, Boothe HW, Henderson RA, Smith BF. A comparison of microRNA expression profiles from splenic hemangiosarcoma, splenic nodular hyperplasia, and normal spleens of dogs. BMC Vet Res 2016; 12:272. [PMID: 27912752 PMCID: PMC5135805 DOI: 10.1186/s12917-016-0903-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 11/22/2016] [Indexed: 12/28/2022] Open
Abstract
Background Splenic masses are common in older dogs; yet diagnosis preceding splenectomy and histopathology remains elusive. MicroRNAs (miRNAs) are short, non-coding RNAs that play a role in post-transcriptional regulation, and differential expression of miRNAs between normal and tumor tissue has been used to diagnose neoplastic diseases. The objective of this study was to determine differential expression of miRNAs by use of RNA-sequencing in canine spleens that were histologically confirmed as hemangiosarcoma, nodular hyperplasia, or normal. Results Twenty-two miRNAs were found to be differentially expressed in hemangiosarcoma samples (4 between hemangiosarcoma and both nodular hyperplasia and normal spleen and 18 between hemangiosarcoma and normal spleen only). In particular, mir-26a, mir-126, mir-139, mir-140, mir-150, mir-203, mir-424, mir-503, mir-505, mir-542, mir-30e, mir-33b, mir-365, mir-758, mir-22, and mir-452 are of interest in the pathogenesis of hemangiosarcoma. Conclusions Findings of this study confirm the hypothesis that miRNA expression profiles are different between canine splenic hemangiosarcoma, nodular hyperplasia, and normal spleens. A large portion of the differentially expressed miRNAs have roles in angiogenesis, with an additional group of miRNAs being dysregulated in vascular disease processes. Two other miRNAs have been implicated in cancer pathways such as PTEN and cell cycle checkpoints. The finding of multiple miRNAs with roles in angiogenesis and vascular disease is important, as hemangiosarcoma is a tumor of endothelial cells, which are driven by angiogenic stimuli. This study shows that miRNA dysregulation is a potential player in the pathogenesis of canine splenic hemangiosarcoma.
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Affiliation(s)
- Janet A Grimes
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn University, Auburn, AL, USA. .,Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, University of Georgia, 2200 College Station Road, Athens, GA, 30602, USA.
| | - Nripesh Prasad
- Genomics Services Laboratory, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - Shawn Levy
- Genomics Services Laboratory, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - Russell Cattley
- Department of Pathobiology, Auburn University College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Stephanie Lindley
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Harry W Boothe
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Ralph A Henderson
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn University, Auburn, AL, USA
| | - Bruce F Smith
- Scott Ritchey Research Center, Auburn University College of Veterinary Medicine, Auburn University, Auburn, AL, USA
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30
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Garajová I, Le Large TYS, Giovannetti E, Kazemier G, Biasco G, Peters GJ. The Role of MicroRNAs in Resistance to Current Pancreatic Cancer Treatment: Translational Studies and Basic Protocols for Extraction and PCR Analysis. Methods Mol Biol 2016; 1395:163-87. [PMID: 26910074 DOI: 10.1007/978-1-4939-3347-1_10] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a common cause of cancer death and has the worst prognosis of any major malignancy, with less than 5 % of patients alive 5-years after diagnosis. The therapeutic options for metastatic PDAC have changed in the past few years from single agent gemcitabine treatment to combination regimens. Nowadays, FOLFIRINOX or gemcitabine with nab-paclitaxel are new standard combinations in frontline metastatic setting in PDAC patients with good performance status. MicroRNAs (miRNA) are small, noncoding RNA molecules affecting important cellular processes such as inhibition of apoptosis, cell proliferation, epithelial-to-mesenchymal transition (EMT), metastases, and resistance to common cytotoxic and anti-signaling therapy in PDAC. A functional association between miRNAs and chemoresistance has been described for several common therapies. Therefore, in this review, we summarize the current knowledge on the role of miRNAs in the resistance to current anticancer treatment used for patients affected by metastatic PDAC.
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Affiliation(s)
- Ingrid Garajová
- Department of Medical Oncology, VU University Medical Center, Cancer Center Amsterdam, CCA 1.42, De Boelelaan 1117, Amsterdam, 1081 HV, The Netherlands.,Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Sant'Orsola-Malpighi Hospital, Bologna, Italy
| | - Tessa Y S Le Large
- Department of Medical Oncology, VU University Medical Center, Cancer Center Amsterdam, CCA 1.42, De Boelelaan 1117, Amsterdam, 1081 HV, The Netherlands.,Department of Surgery, VU University Medical Center, Amsterdam, The Netherlands
| | - Elisa Giovannetti
- Department of Medical Oncology, VU University Medical Center, Cancer Center Amsterdam, CCA 1.42, De Boelelaan 1117, Amsterdam, 1081 HV, The Netherlands.,Cancer Pharmacology Lab, AIRC Start-Up Unit, University of Pisa, Pisa, Italy
| | - Geert Kazemier
- Department of Surgery, VU University Medical Center, Amsterdam, The Netherlands
| | - Guido Biasco
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Sant'Orsola-Malpighi Hospital, Bologna, Italy
| | - Godefridus J Peters
- Department of Medical Oncology, VU University Medical Center, Cancer Center Amsterdam, CCA 1.42, De Boelelaan 1117, Amsterdam, 1081 HV, The Netherlands.
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31
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Li X, He S, Li R, Zhou X, Zhang S, Yu M, Ye Y, Wang Y, Huang C, Wu M. Pseudomonas aeruginosa infection augments inflammation through miR-301b repression of c-Myb-mediated immune activation and infiltration. Nat Microbiol 2016; 1:16132. [PMID: 27670114 PMCID: PMC5061341 DOI: 10.1038/nmicrobiol.2016.132] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 07/05/2016] [Indexed: 02/05/2023]
Abstract
MicroRNAs (miRNAs) play critical roles in various biological processes, including cell proliferation, development and host defence. However, the molecular mechanism for miRNAs in regulating bacterial-induced inflammation remains largely unclear. Here, we report that miR-301b augments pro-inflammatory response during pulmonary infection, and caffeine suppresses the effect of miR-301b and thereby augments respiratory immunity. LPS treatment or Pseudomonas aeruginosa infection induces miR-301b expression via a TLR4/MyD88/NF-κB pathway. Importantly, caffeine decreases miR-301b expression through negative regulation of the cAMP/PKA/NF-κB axis. Further, c-Myb is identified as a target of miR-301b, which positively modulates anti-inflammatory cytokines IL-4 and TGF-β1, but negatively regulates pro-inflammatory cytokines MIP-1α and IL-17A. Moreover, repression of miR-301b results in increased transcription of c-Myb and elevated levels of neutrophil infiltration, thereby alleviating infectious symptoms in mice. These findings reveal miR-301b as a new controller of inflammatory response by repressing c-Myb function to inhibit the anti-inflammatory response to bacterial infection, representing a novel mechanism for balancing inflammation.
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Affiliation(s)
- Xuefeng Li
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, 58203-9037, USA
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, P. R. China
| | - Sisi He
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, 58203-9037, USA
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, P. R. China
| | - Rongpeng Li
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, 58203-9037, USA
| | - Xikun Zhou
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, 58203-9037, USA
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, P. R. China
| | - Shuang Zhang
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, 58203-9037, USA
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, P. R. China
| | - Min Yu
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, 58203-9037, USA
- Department of Thoracic Oncology, West China Hospital, Sichuan University, Chengdu, 610041, P.R. China
| | - Yan Ye
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, 58203-9037, USA
| | - Yongsheng Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, P. R. China
| | - Canhua Huang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, P. R. China
| | - Min Wu
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, 58203-9037, USA
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32
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Han K, Meng W, Zhang JJ, Zhou Y, Wang YL, Su Y, Lin SC, Gan ZH, Sun YN, Min DL. Luteolin inhibited proliferation and induced apoptosis of prostate cancer cells through miR-301. Onco Targets Ther 2016; 9:3085-94. [PMID: 27307749 PMCID: PMC4888721 DOI: 10.2147/ott.s102862] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Luteolin is a falvonoid compound derived from Lonicera japonica Thunb. Numerous reports have demonstrated that luteolin has anticancer effects on many kinds of tumors. This study investigated the effects of luteolin on prostate cancer (PCa), assessing the PC3 and LNCaP cells. The cell viability and apoptosis were assessed by performing Cell Counting Kit-8 assay and Annexin V–fluorescein isothiocyanate/propidium iodide double staining. Luteolin was found to inhibit androgen-sensitive and androgen-independent PCa cell lines’ growth and induced apoptosis. To uncover the exact mechanisms and molecular targets, microRNA (miR) array analysis was performed. miR-301 was found to be markedly downregulated. Then, the expression of miR-301 was retrospectively analyzed in the primary PCa tissues by quantitative reverse transcription polymerase chain reaction and in situ hybridization methods. According to the quantitative reverse transcription polymerase chain reaction results of miR-301, the 54 PCa patients were divided into two groups: high and low miR-301 groups. The division indicator is a relative expression ≥5. Compared to the low-expression group, high miR-301 expression was associated with a significantly shorter overall survival (P=0.029). The proapoptotic gene, DEDD2, was predicted to be the direct target of miR-301. It was clarified in accordance with bioinformatics and luciferase activity analyses. The overexpression of miR-301 by plasmid decreased the luteolin effect. Taken together, these results suggest that luteolin inhibits PCa cell proliferation through miR-301, the poor predictive factor of PCa.
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Affiliation(s)
- Kun Han
- Oncology Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, People's Republic of China
| | - Wei Meng
- Institute of Genetic Engineering of Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Jian-Jun Zhang
- Oncology Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, People's Republic of China
| | - Yan Zhou
- Oncology Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, People's Republic of China
| | - Ya-Ling Wang
- Oncology Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, People's Republic of China
| | - Yang Su
- Oncology Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, People's Republic of China
| | - Shu-Chen Lin
- Oncology Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, People's Republic of China
| | - Zhi-Hua Gan
- Oncology Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, People's Republic of China
| | - Yong-Ning Sun
- Oncology Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, People's Republic of China
| | - Da-Liu Min
- Oncology Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, People's Republic of China
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33
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Yang S, He P, Wang J, Schetter A, Tang W, Funamizu N, Yanaga K, Uwagawa T, Satoskar AR, Gaedcke J, Bernhardt M, Ghadimi BM, Gaida MM, Bergmann F, Werner J, Ried T, Hanna N, Alexander HR, Hussain SP. A Novel MIF Signaling Pathway Drives the Malignant Character of Pancreatic Cancer by Targeting NR3C2. Cancer Res 2016; 76:3838-50. [PMID: 27197190 DOI: 10.1158/0008-5472.can-15-2841] [Citation(s) in RCA: 201] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 04/07/2016] [Indexed: 12/31/2022]
Abstract
Pancreatic cancers with aberrant expression of macrophage migration inhibitory factor (MIF) are particularly aggressive. To identify key signaling pathways that drive disease aggressiveness in tumors with high MIF expression, we analyzed the expression of coding and noncoding genes in high and low MIF-expressing tumors in multiple cohorts of pancreatic ductal adenocarcinoma (PDAC) patients. The key genes and pathways identified were linked to patient survival and were mechanistically, functionally, and clinically characterized using cell lines, a genetically engineered mouse model, and PDAC patient cohorts. Here, we report evidence of a novel MIF-driven signaling pathway that inhibits the orphan nuclear receptor NR3C2, a previously undescribed tumor suppressor that impacts aggressiveness and survival in PDAC. Mechanistically, MIF upregulated miR-301b that targeted NR3C2 and suppressed its expression. PDAC tumors expressing high levels of MIF displayed elevated levels of miR-301b and reduced levels of NR3C2. In addition, reduced levels of NR3C2 expression correlated with poorer survival in multiple independent cohorts of PDAC patients. Functional analysis showed that NR3C2 inhibited epithelial-to-mesenchymal transition and enhanced sensitivity to the gemcitabine, a chemotherapeutic drug used in PDAC standard of care. Furthermore, genetic deletion of MIF disrupted a MIF-mir-301b-NR3C2 signaling axis, reducing metastasis and prolonging survival in a genetically engineered mouse model of PDAC. Taken together, our results offer a preclinical proof of principle for candidate therapies to target a newly described MIF-miR-301b-NR3C2 signaling axis for PDAC management. Cancer Res; 76(13); 3838-50. ©2016 AACR.
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Affiliation(s)
- Shouhui Yang
- Pancreatic Cancer Unit, National Cancer Institute, Bethesda, Maryland. Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Peijun He
- Pancreatic Cancer Unit, National Cancer Institute, Bethesda, Maryland. Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Jian Wang
- Pancreatic Cancer Unit, National Cancer Institute, Bethesda, Maryland. Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Aaron Schetter
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Wei Tang
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Naotake Funamizu
- Department of Surgery, Jikei University School of Medicine, Tokyo, Japan
| | - Katsuhiko Yanaga
- Department of Surgery, Jikei University School of Medicine, Tokyo, Japan
| | - Tadashi Uwagawa
- Department of Surgery, Jikei University School of Medicine, Tokyo, Japan
| | - Abhay R Satoskar
- Department Pathology and Microbiology, Ohio State University, Columbus, Ohio
| | - Jochen Gaedcke
- Department of General, Visceral and Pediatric Surgery, University Medicine, Göttingen, Germany
| | - Markus Bernhardt
- Department of General, Visceral and Pediatric Surgery, University Medicine, Göttingen, Germany
| | - B Michael Ghadimi
- Department of General, Visceral and Pediatric Surgery, University Medicine, Göttingen, Germany
| | - Matthias M Gaida
- Institute of Pathology, University of Heidelberg, Heidelberg, Germany
| | - Frank Bergmann
- Institute of Pathology, University of Heidelberg, Heidelberg, Germany
| | - Jens Werner
- Department of Surgery, Ludwig-Maximillians University, Munich, Germany
| | - Thomas Ried
- Genetics Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Nader Hanna
- Division of Surgical Oncology, University of Maryland School of Medicine, Baltimore, Maryland
| | - H Richard Alexander
- Division of Surgical Oncology, University of Maryland School of Medicine, Baltimore, Maryland
| | - S Perwez Hussain
- Pancreatic Cancer Unit, National Cancer Institute, Bethesda, Maryland. Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland.
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Taucher V, Mangge H, Haybaeck J. Non-coding RNAs in pancreatic cancer: challenges and opportunities for clinical application. Cell Oncol (Dordr) 2016; 39:295-318. [DOI: 10.1007/s13402-016-0275-7] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/17/2016] [Indexed: 01/17/2023] Open
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Ludwig N, Werner TV, Backes C, Trampert P, Gessler M, Keller A, Lenhof HP, Graf N, Meese E. Combining miRNA and mRNA Expression Profiles in Wilms Tumor Subtypes. Int J Mol Sci 2016; 17:475. [PMID: 27043538 PMCID: PMC4848931 DOI: 10.3390/ijms17040475] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 03/18/2016] [Accepted: 03/22/2016] [Indexed: 12/22/2022] Open
Abstract
Wilms tumor (WT) is the most common childhood renal cancer. Recent findings of mutations in microRNA (miRNA) processing proteins suggest a pivotal role of miRNAs in WT genesis. We performed miRNA expression profiling of 36 WTs of different subtypes and four normal kidney tissues using microarrays. Additionally, we determined the gene expression profile of 28 of these tumors to identify potentially correlated target genes and affected pathways. We identified 85 miRNAs and 2107 messenger RNAs (mRNA) differentially expressed in blastemal WT, and 266 miRNAs and 1267 mRNAs differentially expressed in regressive subtype. The hierarchical clustering of the samples, using either the miRNA or mRNA profile, showed the clear separation of WT from normal kidney samples, but the miRNA pattern yielded better separation of WT subtypes. A correlation analysis of the deregulated miRNA and mRNAs identified 13,026 miRNA/mRNA pairs with inversely correlated expression, of which 2844 are potential interactions of miRNA and their predicted mRNA targets. We found significant upregulation of miRNAs-183, -301a/b and -335 for the blastemal subtype, and miRNAs-181b, -223 and -630 for the regressive subtype. We found marked deregulation of miRNAs regulating epithelial to mesenchymal transition, especially in the blastemal subtype, and miRNAs influencing chemosensitivity, especially in regressive subtypes. Further research is needed to assess the influence of preoperative chemotherapy and tumor infiltrating lymphocytes on the miRNA and mRNA patterns in WT.
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Affiliation(s)
- Nicole Ludwig
- Department of Human Genetics, Saarland University, 66421 Homburg/Saar, Germany.
| | - Tamara V Werner
- Department of Human Genetics, Saarland University, 66421 Homburg/Saar, Germany.
| | - Christina Backes
- Chair for Clinical Bioinformatics, Building E2.1, 66123 Saarbruecken, Germany.
| | - Patrick Trampert
- Center for Bioinformatics, Saarland University, Building E.1.1, 66041 Saarbruecken, Germany.
| | - Manfred Gessler
- Developmental Biochemistry, Biocenter, and Comprehensive Cancer Center Mainfranken, University of Wuerzburg, 97074 Wuerzburg, Germany.
| | - Andreas Keller
- Chair for Clinical Bioinformatics, Building E2.1, 66123 Saarbruecken, Germany.
| | - Hans-Peter Lenhof
- Center for Bioinformatics, Saarland University, Building E.1.1, 66041 Saarbruecken, Germany.
| | - Norbert Graf
- Department of Pediatric Oncology and Hematology, Medical School, Saarland University, 66421 Homburg, Germany.
| | - Eckart Meese
- Department of Human Genetics, Saarland University, 66421 Homburg/Saar, Germany.
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The miR-130 family promotes cell migration and invasion in bladder cancer through FAK and Akt phosphorylation by regulating PTEN. Sci Rep 2016; 6:20574. [PMID: 26837847 PMCID: PMC4738343 DOI: 10.1038/srep20574] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 01/06/2016] [Indexed: 02/08/2023] Open
Abstract
Bladder cancer causes an estimated 150,000 deaths per year worldwide. Although 15% of the recurrent bladder cancer becomes an invasive type, currently used targeted therapy for malignant bladder cancer is still not efficient. We focused on the miR-130 family (miR-130b, miR-301a, and miR-301b) that was significantly upregulated in bladder cancer specimens than that of the normal urothelial specimens. We analyzed the functional significance of miR-130 family using a 5637 bladder cancer cell line and revealed that miR-130 family of inhibitors suppressed cell migration and invasion by downregulating focal adhesion kinase (FAK) and Akt phosphorylation. Mechanistic analyses indicate that the miR-130 family directly targets phosphatase and tensin homolog deleted from chromosome 10 (PTEN), resulting in the upregulation of FAK and Akt phosphorylation. In clinical bladder cancer specimens, downregulation of PTEN was found to be closely correlated with miR-130 family expression levels. Overall, the miR-130 family has a crucial role in malignant progression of bladder cancer and thus the miR-130 family could be a promising therapeutic target for invasive bladder cancer.
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Quintero H, Gómez-Montalvo AI, Lamas M. MicroRNA changes through Müller glia dedifferentiation and early/late rod photoreceptor differentiation. Neuroscience 2015; 316:109-21. [PMID: 26708746 DOI: 10.1016/j.neuroscience.2015.12.025] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 11/24/2015] [Accepted: 12/14/2015] [Indexed: 12/18/2022]
Abstract
Cell-type determination is a complex process driven by the combinatorial effect of extrinsic signals and the expression of transcription factors and regulatory genes. MicroRNAs (miRNAs) are non-coding RNAs that, generally, inhibit the expression of target genes and have been involved, among other processes, in cell identity acquisition. To search for candidate miRNAs putatively involved in mice rod photoreceptor and Müller glia (MG) identity, we compared miRNA expression profiles between late-stage retinal progenitor cells (RPCs), CD73-immunopositive (CD73+) rods and postnatal MG. We found a close similarity between RPCs and CD73+ miRNA expression profiles but a divergence between CD73+ and MG miRNA signatures. We validated preferentially expressed miRNAs in the CD73+ subpopulation (miR-182, 183, 124a, 9(∗), 181c and 301b(∗)) or MG (miR-143, 145, 214, 199a-5p, 199b(∗), and 29a). Taking advantage of the unique capacity of MG to dedifferentiate into progenitor-like cells that can be differentiated to a rod phenotype in response to external cues, we evaluated changes of selected miRNAs in MG-derived progenitors (MGDP) during neuronal differentiation. We found decreased levels of miR-143 and 145, but increased levels of miR-29a in MGDP. In MGDPs committed to early neuronal lineages we found increased levels of miR-124a and upregulation of miR-124a, 9(∗) and 181c during MGDP acquisition of rod phenotypes. Furthermore, we demonstrated that ectopic miR-124 expression is sufficient to enhance early neuronal commitment of MGDP. Our data reveal a dynamic regulation of miRNAs in MGDP through early and late neuronal commitment and miRNAs that could be potential targets to exploit the silent neuronal differentiation capacity of MG in mammals.
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Affiliation(s)
- H Quintero
- Departamento de Farmacobiología, CINVESTAV-Sede Sur, México D.F., Mexico
| | - A I Gómez-Montalvo
- Departamento de Farmacobiología, CINVESTAV-Sede Sur, México D.F., Mexico
| | - M Lamas
- Departamento de Farmacobiología, CINVESTAV-Sede Sur, México D.F., Mexico.
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Sand M, Bechara FG, Gambichler T, Sand D, Friedländer MR, Bromba M, Schnabel R, Hessam S. Next-generation sequencing of the basal cell carcinoma miRNome and a description of novel microRNA candidates under neoadjuvant vismodegib therapy: an integrative molecular and surgical case study. Ann Oncol 2015; 27:332-8. [PMID: 26578727 DOI: 10.1093/annonc/mdv551] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 10/27/2015] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND MicroRNAs (miRNAs) have been identified as key players in posttranscriptional gene regulation and have a significant impact on basal cell carcinoma (BCC) development. The Sonic hedgehog pathway inhibitor vismodegib has been approved for oral therapy of metastatic or advanced BCC. Here, a high-throughput miRNA sequencing analysis was carried out to identify differentially expressed miRNAs and possible novel miRNA candidates in vismodegib-treated BCC tissue. Additionally, we described our surgical experience with neoadjuvant oral vismodegib therapy. PATIENTS AND METHODS A punch biopsy (4 mm) from a patient with an extensive cranial BCC under oral vismodegib therapy and a corresponding nonlesional epithelial skin biopsy were harvested. Total RNA was isolated, after which a sequencing cDNA library was prepared, and cluster generation was carried out, which was followed by an ultra-high-throughput miRNA sequencing analysis to indicate the read number of miRNA expression based on miRBase 21. In addition to the identification of differentially expressed miRNAs from RNA sequencing data, additional novel miRNA candidates were determined with a tool for identifying new miRNA sequences (miRDeep2). RESULTS We identified 33 up-regulated miRNAs (fold change ≥2) and 39 potentially new miRNA candidates (miRDeep scores 0-43.6). A manual sequence analysis of the miRNA candidates on the genomic locus of chromosome 1 with provisional IDs of chr1_1913 and chr1_421 was further carried out and rated as promising (chr1_1913) and borderline (chr1_421). Histopathology revealed skip lesions in clinically healthy appearing skin at the tumor margins, which were the cause of seven re-excisions by micrographic controlled surgery to achieve tumor-free margins. CONCLUSION miRNA sequencing revealed novel miRNA candidates that need to be further confirmed in functional Dicer knockout studies. Clinically, on the basis of our surgical experience described here, neoadjuvant vismodegib therapy in BCC appears to impede histopathologic evaluations with effects on surgical therapy. Thus, larger studies are necessary, but are not preferable at this time if other options are available.
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Affiliation(s)
- M Sand
- Dermatologic Surgery Unit, Department of Dermatology, Venereology and Allergology, Ruhr-University Bochum, Bochum Department of Plastic Surgery, St Josef Hospital, Catholic Clinics of the Ruhr Peninsula, Essen, Germany
| | - F G Bechara
- Dermatologic Surgery Unit, Department of Dermatology, Venereology and Allergology, Ruhr-University Bochum, Bochum
| | - T Gambichler
- Dermatologic Surgery Unit, Department of Dermatology, Venereology and Allergology, Ruhr-University Bochum, Bochum
| | - D Sand
- University of Michigan, Kellogg Eye Center, Ann Arbor, USA
| | - M R Friedländer
- Science for Life Laboratory, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - M Bromba
- Department of Plastic Surgery, St Josef Hospital, Catholic Clinics of the Ruhr Peninsula, Essen, Germany
| | | | - S Hessam
- Dermatologic Surgery Unit, Department of Dermatology, Venereology and Allergology, Ruhr-University Bochum, Bochum
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Nagaraju GP, Madanraj AS, Aliya S, Rajitha B, Alese OB, Kariali E, Alam A, El-Rayes BF. MicroRNAs as biomarkers and prospective therapeutic targets in colon and pancreatic cancers. Tumour Biol 2015; 37:97-104. [PMID: 26537581 DOI: 10.1007/s13277-015-4346-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Accepted: 10/28/2015] [Indexed: 12/15/2022] Open
Abstract
Colon and pancreatic cancers have high mortality rates due to early metastasis prior to the onset of symptoms. Screening tests for colorectal cancer are invasive and expensive. No effective screening is available for pancreatic cancer. Identification of biomarkers for early detection in both of these cancers is being extensively researched. MicroRNAs (miRNA) are small non-coding molecule biomarkers that regulate cancers. Measurement of miRNAs in pancreatic fluid or blood could be a preferred non-invasive screening method. The regulation of colon and pancreatic cancers by miRNA is complex. miRNA play a central role in inflammation, invasiveness, and tumor progression in these two cancers, as well as regulation of the NF-κB pathway. miRNA's evolving role in screening is also reviewed.
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Affiliation(s)
- Ganji Purnachandra Nagaraju
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, 1365 Clifton RD NE, Office 3025, Atlanta, GA, 30322, USA.
| | - Appiya Santharam Madanraj
- Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, UK, 12 LE1 9HN
| | - Sheik Aliya
- Department of Biotechnology, Jawaharlal Nehru Technological University, Hyderabad, Andhra Pradesh, 500085, India
| | - Balney Rajitha
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, 1365 Clifton RD NE, Office 3025, Atlanta, GA, 30322, USA.,Department of Microbiology, Banasthali University, Banasthali, Rajasthan, 304022, India
| | - Olatunji Boladale Alese
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, 1365 Clifton RD NE, Office 3025, Atlanta, GA, 30322, USA
| | - Ekamber Kariali
- School of Life Sciences, Department of Biotechnology, Sambalpur University, Jyoti Vihar, Sambalpur, Odisha, 768019, India
| | - Afroz Alam
- Department of Microbiology, Banasthali University, Banasthali, Rajasthan, 304022, India
| | - Bassel F El-Rayes
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, 1365 Clifton RD NE, Office 3025, Atlanta, GA, 30322, USA
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Funamizu N, Lacy CR, Kamada M, Yanaga K, Manome Y. MicroRNA-203 induces apoptosis by upregulating Puma expression in colon and lung cancer cells. Int J Oncol 2015; 47:1981-8. [PMID: 26397233 DOI: 10.3892/ijo.2015.3178] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 09/04/2015] [Indexed: 11/06/2022] Open
Abstract
The present study investigated the relationship between microRNA-203 (miR-203) and the p53 upregulated modulator of apoptosis (Puma) in colon (HCT116) and lung cancer (A549) cells. Colon and lung cancer cell lines were selected for this study since a relationship between p53/miR-203 and p53/Puma has been established in both cancers. In the present study, adriamycin and nutlin-3 were used to activate p53, which induced both miR-203 and Puma expression in HCT116 cells. In contrast, HCT 116 cells with downregulated p53 showed decreased miR-203 and Puma expression. Importantly, we found that overexpressed miR-203 in HCT116 cells resulted in significantly increased Puma expression (P<0.05). Based on these findings, we hypothesized that another limb of the p53/Puma axis depends on miR-203 expression. To further validate this relationship, we used lung cancer cells (A549) and found that activated p53 increased both miR-203 and Puma expression. In addition, we found that Puma expression remained elevated in cells with overexpressed miR-203 in the presence of p53 downregulation. Cumulatively, our data purport that p53 not only increased Puma expression directly, but that it may also do so through miR-203. Additionally, functional studies revealed that miR-203 overexpression induced apoptosis and inhibited cell invasiveness.
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Affiliation(s)
- Naotake Funamizu
- Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Curtis R Lacy
- Howard University School of Medicine, Washington, DC, USA
| | - Minori Kamada
- Department of Molecular Cell Biology, The Jikei University School of Medicine, Tokyo, Japan
| | - Katsuhiko Yanaga
- Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Yoshinobu Manome
- Department of Molecular Cell Biology, The Jikei University School of Medicine, Tokyo, Japan
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Rieswijk L, Brauers KJJ, Coonen MLJ, van Breda SGJ, Jennen DGJ, Kleinjans JCS. Evaluating microRNA profiles reveals discriminative responses following genotoxic or non-genotoxic carcinogen exposure in primary mouse hepatocytes. Mutagenesis 2015; 30:771-84. [DOI: 10.1093/mutage/gev036] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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Shi Z, Liu J, Yu X, Huang J, Shen S, Zhang Y, Han R, Ge N, Yang Y. Loss of FOXF2 Expression Predicts Poor Prognosis in Hepatocellular Carcinoma Patients. Ann Surg Oncol 2015; 23:211-7. [PMID: 25824262 DOI: 10.1245/s10434-015-4515-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Indexed: 01/08/2023]
Abstract
BACKGROUND FOXF2 is a member of the forkhead box (FOX) family of transcription factors. FOXF2 plays an important role in several tumors but its expression and role in hepatocellular carcinoma (HCC) remains unknown. METHODS Using immunohistochemistry, western blot, and real-time polymerase chain reaction, we analyzed FOXF2 expression in 295 clinicopathologically characterized HCC cases. Using RNA interference (RNAi), we investigated the effects of FOXF2 depletion on tumor cell behavior in vitro. Statistical analyses were used to determine associations between FOXF2 levels, tumor features, and patient outcomes. RESULTS FOXF2 downregulation was observed in HCC tissues (p < 0.001) compared with peritumorous tissues, and its expression levels were closely correlated with overall survival and recurrence-free survival (p = 0.023 and 0.006, respectively) in patients with HCC. RNAi-mediated silencing of the FOXF2 gene in the MHCC-97H cell line significantly promoted proliferation and anti-apoptosis. CONCLUSIONS The results of the present study indicate that FOXF2 may serve as a prognostic biomarker for HCC and may be a promising target in the treatment of patients with HCC.
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Affiliation(s)
- Zhiyong Shi
- Department of Radioactive Intervention, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China.
| | - Jie Liu
- Department of Intensive Care Unit, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Xiaohe Yu
- Department of Radioactive Intervention, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Jian Huang
- Department of Radioactive Intervention, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Shuqun Shen
- Department of Radioactive Intervention, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Yongshun Zhang
- Department of Digestion, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Rongli Han
- Department of Cardiology, Dahua Hospital, Shanghai, China
| | - Naijian Ge
- Department of Radioactive Intervention, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China.
| | - Yefa Yang
- Department of Radioactive Intervention, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China.
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Cao Z, Xu J, Huang H, Shen P, You L, Zhou L, Zheng L, Zhang T, Zhao Y. MiR-1178 promotes the proliferation, G1/S transition, migration and invasion of pancreatic cancer cells by targeting CHIP. PLoS One 2015; 10:e0116934. [PMID: 25635996 PMCID: PMC4312055 DOI: 10.1371/journal.pone.0116934] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Accepted: 12/16/2014] [Indexed: 12/21/2022] Open
Abstract
CHIP, a co-chaperone protein that interacts with Hsc/Hsp70, has been shown to be under-expressed in pancreatic cancer cells and has demonstrated a potential tumor suppressor property. Nevertheless, the underlying mechanisms of CHIP regulation in pancreatic cancer cells remain unknown. In this study, we found that miR-1178 decreased the translation of the CHIP protein by targeting the 3′-UTR region. We observed that over-expression of miR-1178 facilitated the proliferation, G1/S transition, migration and invasion of pancreatic cancer cells. Conversely, the inhibition of miR-1178 expression significantly suppressed these phenotypes. Furthermore, CHIP over-expression abrogated miR-1178-induced cell proliferation and invasion. Our data suggest that miR-1178 acts as an oncomiR in pancreatic cancer cells by inhibiting CHIP expression.
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Affiliation(s)
- Zhe Cao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jianwei Xu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hua Huang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Peng Shen
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lei You
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Li Zhou
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lianfang Zheng
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Taiping Zhang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- * E-mail: (TZ); (YZ)
| | - Yupei Zhao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- * E-mail: (TZ); (YZ)
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Yang T, Thakur A, Chen T, Yang L, Lei G, Liang Y, Zhang S, Ren H, Chen M. MicroRNA-15a induces cell apoptosis and inhibits metastasis by targeting BCL2L2 in non-small cell lung cancer. Tumour Biol 2015; 36:4357-65. [DOI: 10.1007/s13277-015-3075-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Accepted: 01/08/2015] [Indexed: 01/20/2023] Open
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MIMURA SHIMA, IWAMA HISAKAZU, KATO KIYOHITO, NOMURA KEI, KOBAYASHI MITSUYOSHI, YONEYAMA HIROHITO, MIYOSHI HISAAKI, TANI JOJI, MORISHITA ASAHIRO, HIMOTO TAKASHI, DEGUCHI AKIHIRO, NOMURA TAKAKO, SAKAMOTO TEPPEI, FUJITA KOJI, MAEDA EMIKO, IZUISHI KUNIHIKO, OKANO KEIICHI, SUZUKI YASUYUKI, MASAKI TSUTOMU. Profile of microRNAs associated with aging in rat liver. Int J Mol Med 2014; 34:1065-72. [DOI: 10.3892/ijmm.2014.1892] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Accepted: 07/30/2014] [Indexed: 11/05/2022] Open
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Angiotensin II-regulated microRNA 483-3p directly targets multiple components of the renin-angiotensin system. J Mol Cell Cardiol 2014; 75:25-39. [PMID: 24976017 DOI: 10.1016/j.yjmcc.2014.06.008] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 06/16/2014] [Accepted: 06/18/2014] [Indexed: 11/21/2022]
Abstract
Improper regulation of signaling in vascular smooth muscle cells (VSMCs) by angiotensin II (AngII) can lead to hypertension, vascular hypertrophy and atherosclerosis. The extent to which the homeostatic levels of the components of signaling networks are regulated through microRNAs (miRNA) modulated by AngII type 1 receptor (AT1R) in VSMCs is not fully understood. Whether AT1R blockers used to treat vascular disorders modulate expression of miRNAs is also not known. To report differential miRNA expression following AT1R activation by AngII, we performed microarray analysis in 23 biological and technical replicates derived from humans, rats and mice. Profiling data revealed a robust regulation of miRNA expression by AngII through AT1R, but not the AngII type 2 receptor (AT2R). The AT1R-specific blockers, losartan and candesartan antagonized >90% of AT1R-regulated miRNAs and AngII-activated AT2R did not modulate their expression. We discovered VSMC-specific modulation of 22 miRNAs by AngII, and validated AT1R-mediated regulation of 17 of those miRNAs by real-time polymerase chain reaction analysis. We selected miR-483-3p as a novel representative candidate for further study because mRNAs of multiple components of the renin-angiotensin system (RAS) were predicted to contain the target sequence for this miRNA. MiR-483-3p inhibited the expression of luciferase reporters bearing 3'-UTRs of four different RAS genes and the inhibition was reversed by antagomir-483-3p. The AT1R-regulated expression levels of angiotensinogen and angiotensin converting enzyme 1 (ACE-1) proteins in VSMCs are modulated specifically by miR-483-3p. Our study demonstrates that the AT1R-regulated miRNA expression fingerprint is conserved in VSMCs of humans and rodents. Furthermore, we identify the AT1R-regulated miR-483-3p as a potential negative regulator of steady-state levels of RAS components in VSMCs. Thus, miRNA-regulation by AngII to affect cellular signaling is a novel aspect of RAS biology, which may lead to discovery of potential candidate prognostic markers and therapeutic targets.
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