1
|
Yi YS. MicroRNA-mediated epigenetic regulation of inflammasomes in inflammatory responses and immunopathologies. Semin Cell Dev Biol 2024; 154:227-238. [PMID: 36437174 DOI: 10.1016/j.semcdb.2022.11.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 11/18/2022] [Accepted: 11/19/2022] [Indexed: 11/27/2022]
Abstract
Inflammation represents the first-line defense mechanism of the host against pathogens and cellular stress. One of the most critical inflammatory responses is characterized by the activation of inflammasomes, intracellular multiprotein complexes that induce inflammatory signaling pathways in response to various pathogen-associated molecular patterns or danger-associated molecular patterns under physiological and pathological conditions. Inflammasomes are tightly regulated in normal cells, and dysregulation of these complexes is observed in various pathological conditions, especially inflammatory diseases and cancers. Epigenetic regulation has been suggested as a key mechanism in modulating inflammasome activity, and microRNAs (miRNAs) have been implicated in the post-transcriptional regulation of inflammasomes. Therefore, miRNA-mediated epigenetic regulation of inflammasomes in pathological conditions has received considerable attention, and current strategies for targeting inflammasomes have been shown to be effective in the treatment of diseases associated with inflammasome activation. This review summarizes recent studies suggesting the roles of miRNAs in the epigenetic control of inflammasomes and highlights the potential of miRNAs as a therapeutic tool for treating human diseases.
Collapse
Affiliation(s)
- Young-Su Yi
- Department of Life Sciences, Kyonggi University, Suwon 16227, South Korea.
| |
Collapse
|
2
|
Akyüz N, Janjetovic S, Ghandili S, Bokemeyer C, Dierlamm J. EBV and 1q Gains Affect Gene and miRNA Expression in Burkitt Lymphoma. Viruses 2023; 15:1808. [PMID: 37766215 PMCID: PMC10537407 DOI: 10.3390/v15091808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/03/2023] [Accepted: 08/04/2023] [Indexed: 09/29/2023] Open
Abstract
Abnormalities of the long arm of chromosome 1 (1q) represent the most frequent secondary chromosomal aberrations in Burkitt lymphoma (BL) and are observed almost exclusively in EBV-negative BL cell lines (BL-CLs). To verify chromosomal abnormalities, we cytogenetically investigated EBV-negative BL patient material, and to elucidate the 1q gain impact on gene expression, we performed qPCR with six 1q-resident genes and analyzed miRNA expression in BL-CLs. We observed 1q aberrations in the form of duplications, inverted duplications, isodicentric chromosome idic(1)(q10), and the accumulation of 1q12 breakpoints, and we assigned 1q21.2-q32 as a commonly gained region in EBV-negative BL patients. We detected MCL1, ARNT, MLLT11, PDBXIP1, and FCRL5, and 64 miRNAs, showing EBV- and 1q-gain-dependent dysregulation in BL-CLs. We observed MCL1, MLLT11, PDBXIP1, and 1q-resident miRNAs, hsa-miR-9, hsa-miR-9*, hsa-miR-92b, hsa-miR-181a, and hsa-miR-181b, showing copy-number-dependent upregulation in BL-CLs with 1q gains. MLLT11, hsa-miR-181a, hsa-miR-181b, and hsa-miR-183 showed exclusive 1q-gains-dependent and FCRL5, hsa-miR-21, hsa-miR-155, hsa-miR-155*, hsa-miR-221, and hsa-miR-222 showed exclusive EBV-dependent upregulation. We confirmed previous data, e.g., regarding the EBV dependence of hsa-miR-17-92 cluster members, and obtained detailed information considering 1q gains in EBV-negative and EBV-positive BL-CLs. Altogether, our data provide evidence for a non-random involvement of 1q gains in BL and contribute to enlightening and understanding the EBV-negative and EBV-positive BL pathogenesis.
Collapse
Affiliation(s)
| | | | | | | | - Judith Dierlamm
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, University Clinic Hamburg-Eppendorf, 20251 Hamburg, Germany; (N.A.); (S.J.); (S.G.); (C.B.)
| |
Collapse
|
3
|
Luo WZ, Li X, Wu XX, Shang YW, Meng DH, Chen YL, Zhang QS. MAGED4B is a Poor Prognostic Marker of Stomach Adenocarcinoma and a Potential Therapeutic Target for Stomach Adenocarcinoma Tumorigenesis. Int J Gen Med 2023; 16:1681-1693. [PMID: 37181643 PMCID: PMC10171223 DOI: 10.2147/ijgm.s401507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 04/26/2023] [Indexed: 05/16/2023] Open
Abstract
Background Gastric cancer is the second most common cause of cancer death worldwide with poor overall prognosis. It is important to study the molecular mechanism of stomach adenocarcinoma (STAD). MAGED4B, a member of the melanoma antigen gene (MAGE) family, is highly expressed in many tumor cells and is associated with tumor progression. Its prognostic value in and the function of the encoded protein are still unclear. Methods The data of 415 STAD tissues was retrieved from TCGA database, and the expression level of MAGED4B mRNA was evaluated. The correlation between the expression of MAGED4B mRNA and the progression free survival (PFS) time of STAD patients was evaluated by Kaplan Meier analysis. The STAD cell lines with overexpressed and silent MAGED4B were constructed, and the effects of MAGED4B on the viability, migration and proliferation were evaluated by the CCK-8, scratch test and EDU test. The flow cytometry was used to detect apoptosis with overexpressed and silent MAGED4B under the cisplatin treatment, and WB was used to detect the expressions of related proteins, such as TNF-α. Results The expression level of MAGED4B mRNA in the STAD tissues was higher than that in the normal tissues, and its high expression was related to poor PFS. The overexpression of MAGED4B in the STAD cell lines can promote the vitality, motility and proliferation of the STAD cells, while the silencing of MAGED4B can inhibit the above three cell functions of the STAD cells. The overexpression of MAGED4B can reduce the cisplatin induced apoptosis and increase the cisplatin IC50; the silencing of MAGED4B can promote the cisplatin induced apoptosis and reduce the cisplatin IC50. The overexpression of MAGED4B reduced the protein levels of TRIM27 and TNF- α. Conclusion MAGED4B could be a valuable prognostic biomarker and a therapeutic target for gastric adenocarcinoma of great interest.
Collapse
Affiliation(s)
- Wen-Zhao Luo
- School of Basic Medicine (Zhongjing School), Henan University of Chinese Medicine, Zhengzhou, Henan Province, 45000, People’s Republic of China
- Department of Hepatobiliary and Spleen Stomach, Henan Province Hospital of Traditional Chinese Medicine, Zhengzhou, Henan Province, 450000, People’s Republic of China
| | - Xian Li
- Department of Hepatobiliary and Spleen Stomach, Henan Province Hospital of Traditional Chinese Medicine, Zhengzhou, Henan Province, 450000, People’s Republic of China
| | - Xiu-Xia Wu
- Department of Hepatobiliary and Spleen Stomach, Henan Province Hospital of Traditional Chinese Medicine, Zhengzhou, Henan Province, 450000, People’s Republic of China
| | - Yi-Wan Shang
- School of Basic Medicine (Zhongjing School), Henan University of Chinese Medicine, Zhengzhou, Henan Province, 45000, People’s Republic of China
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, Henan Province, 45000, People’s Republic of China
| | - Dan-Hua Meng
- School of Basic Medicine (Zhongjing School), Henan University of Chinese Medicine, Zhengzhou, Henan Province, 45000, People’s Republic of China
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, Henan Province, 45000, People’s Republic of China
| | - Yu-Long Chen
- School of Basic Medicine (Zhongjing School), Henan University of Chinese Medicine, Zhengzhou, Henan Province, 45000, People’s Republic of China
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, Henan Province, 45000, People’s Republic of China
- Correspondence: Yu-Long Chen, School of Basic Medicine (Zhongjing School), Henan University of Chinese Medicine, No. 156 East Jinshui Road, Jinshui District, Zhengzhou, Henan Province, 45000, People’s Republic of China, Email
| | - Qin-Sheng Zhang
- Department of Hepatobiliary and Spleen Stomach, Henan Province Hospital of Traditional Chinese Medicine, Zhengzhou, Henan Province, 450000, People’s Republic of China
- Qin-Sheng Zhang, Henan Province Hospital of Traditional Chinese Medicine, Department of Hepatobiliary and Spleen Stomach, No. 6 Dongfeng Road, Jinshui District, Zhengzhou, Henan Province, 450000, People’s Republic of China, Email
| |
Collapse
|
4
|
Orang A, Ali SR, Petersen J, McKinnon RA, Aloia AL, Michael MZ. A functional screen with metformin identifies microRNAs that regulate metabolism in colorectal cancer cells. Sci Rep 2022; 12:2889. [PMID: 35190587 PMCID: PMC8861101 DOI: 10.1038/s41598-022-06587-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 01/28/2022] [Indexed: 12/11/2022] Open
Abstract
Metformin inhibits oxidative phosphorylation and can be used to dissect metabolic pathways in colorectal cancer (CRC) cells. CRC cell proliferation is inhibited by metformin in a dose dependent manner. MicroRNAs that regulate metabolism could be identified by their ability to alter the effect of metformin on CRC cell proliferation. An unbiased high throughput functional screen of a synthetic micoRNA (miRNA) library was used to identify miRNAs that impact the metformin response in CRC cells. Experimental validation of selected hits identified miRNAs that sensitize CRC cells to metformin through modulation of proliferation, apoptosis, cell-cycle and direct metabolic disruption. Among eight metformin sensitizing miRNAs identified by functional screening, miR-676-3p had both pro-apoptotic and cell cycle arrest activity in combination with metformin, whereas other miRNAs (miR-18b-5p, miR-145-3p miR-376b-5p, and miR-718) resulted primarily in cell cycle arrest when combined with metformin. Investigation of the combined effect of miRNAs and metformin on CRC cell metabolism showed that miR-18b-5p, miR-145-3p, miR-376b-5p, miR-676-3p and miR-718 affected glycolysis only, while miR-1181 only regulated CRC respiration. MicroRNAs can sensitize CRC cells to the anti-proliferative effects of metformin. Identifying relevant miRNA targets may enable the design of innovative therapeutic strategies.
Collapse
Affiliation(s)
- Ayla Orang
- Flinders Health and Medical Research Institute - Cancer Program, Flinders University, Adelaide, South Australia, 5042, Australia
| | - Saira R Ali
- Flinders Health and Medical Research Institute - Cancer Program, Flinders University, Adelaide, South Australia, 5042, Australia
| | - Janni Petersen
- Flinders Health and Medical Research Institute - Cancer Program, Flinders University, Adelaide, South Australia, 5042, Australia
| | - Ross A McKinnon
- Flinders Health and Medical Research Institute - Cancer Program, Flinders University, Adelaide, South Australia, 5042, Australia
| | - Amanda L Aloia
- Cell Screen SA Facility, Flinders Health and Medical Research Institute, Flinders University, Bedford Park, South Australia, 5042, Australia
| | - Michael Z Michael
- Flinders Health and Medical Research Institute - Cancer Program, Flinders University, Adelaide, South Australia, 5042, Australia. .,Department Gastroenterology and Hepatology, Flinders Centre for Innovation in Cancer, Flinders Medical Centre, Bedford Park, South Australia, 5042, Australia.
| |
Collapse
|
5
|
Yan Z, Sheng Z, Zheng Y, Feng R, Xiao Q, Shi L, Li H, Yin C, Luo H, Hao C, Wang W, Zhang B. Cancer-associated fibroblast-derived exosomal miR-18b promotes breast cancer invasion and metastasis by regulating TCEAL7. Cell Death Dis 2021; 12:1120. [PMID: 34853307 PMCID: PMC8636636 DOI: 10.1038/s41419-021-04409-w] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 11/06/2021] [Accepted: 11/15/2021] [Indexed: 11/09/2022]
Abstract
Studies have shown that cancer-associated fibroblasts (CAFs) play an irreplaceable role in the occurrence and development of tumors. Therefore, exploring the action and mechanism of CAFs on tumor cells is particularly important. In this study, we compared the effects of CAFs-derived exosomes and normal fibroblasts (NFs)-derived exosomes on breast cancer cells migration and invasion. The results showed that exosomes from both CAFs and NFs could enter into breast cancer cells and CAFs-derived exosomes had a more enhancing effect on breast cancer cells migration and invasion than NFs-derived exosomes. Furthermore, microRNA (miR)-18b was upregulated in CAFs-derived exosomes, and CAFs-derived exosomes miR-18b can promote breast cancer cell migration and metastasis by specifically binding to the 3'UTR of Transcription Elongation Factor A Like 7 (TCEAL7). The miR-18b-TCEAL7 pathway promotes nuclear Snail ectopic activation by activating nuclear factor-kappa B (NF-κB), thereby inducing epithelial-mesenchymal transition (EMT) and promoting cell invasion and metastasis. Moreover, CAFs-derived exosomes miR-18b could promote mouse xenograft model tumor metastasis. Overall, our findings suggest that CAFs-derived exosomes miR-18b promote nuclear Snail ectopic by targeting TCEAL7 to activate the NF-κB pathway, thereby inducing EMT, invasion, and metastasis of breast cancer. Targeting CAFs-derived exosome miR-18b may be a potential treatment option to overcome breast cancer progression.
Collapse
Affiliation(s)
- Ziqian Yan
- grid.268079.20000 0004 1790 6079Department of Pathology, Weifang Medical University, Weifang, Shandong China ,grid.268079.20000 0004 1790 6079Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong China
| | - Zhimei Sheng
- grid.268079.20000 0004 1790 6079Department of Pathology, Weifang Medical University, Weifang, Shandong China ,grid.268079.20000 0004 1790 6079Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong China
| | - Yuanhang Zheng
- grid.268079.20000 0004 1790 6079Department of Pathology, Weifang Medical University, Weifang, Shandong China ,grid.268079.20000 0004 1790 6079Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong China
| | - Ruijun Feng
- grid.268079.20000 0004 1790 6079Department of Pathology, Weifang Medical University, Weifang, Shandong China ,grid.268079.20000 0004 1790 6079Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong China
| | - Qinpei Xiao
- grid.268079.20000 0004 1790 6079Department of Pathology, Weifang Medical University, Weifang, Shandong China ,grid.268079.20000 0004 1790 6079Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong China
| | - Lihong Shi
- grid.268079.20000 0004 1790 6079Department of Pharmacology, Weifang Medical University, Weifang, Shandong China
| | - Hongli Li
- grid.268079.20000 0004 1790 6079Department of Medicine Research Center, Weifang Medical University, Weifang, Shandong China
| | - Chonggao Yin
- grid.268079.20000 0004 1790 6079Department of Medicine Research Center, Weifang Medical University, Weifang, Shandong China
| | - Hao Luo
- grid.268079.20000 0004 1790 6079Department of Pathology, Weifang Medical University, Weifang, Shandong China ,grid.268079.20000 0004 1790 6079Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong China
| | - Chong Hao
- Department of Oncology, Maternal and Child Health Care Hospital of Zibo, Zibo, Shandong China
| | - Wenhao Wang
- grid.268079.20000 0004 1790 6079Department of Medical Oncology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong China
| | - Baogang Zhang
- Department of Pathology, Weifang Medical University, Weifang, Shandong, China. .,Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China.
| |
Collapse
|
6
|
Systematic integrated analyses of methylomic and transcriptomic impacts of early combined botanicals on estrogen receptor-negative mammary cancer. Sci Rep 2021; 11:9481. [PMID: 33947955 PMCID: PMC8096837 DOI: 10.1038/s41598-021-89131-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 04/21/2021] [Indexed: 11/09/2022] Open
Abstract
Dietary botanicals such as the cruciferous vegetable broccoli sprouts (BSp) as well as green tea polyphenols (GTPs) have shown exciting potential in preventing or delaying breast cancer (BC). However, little is known about their impact on epigenomic aberrations that are centrally involved in the initiation and progression of estrogen receptor-negative [ER(−)] BC. We have investigated the efficacy of combined BSp and GTPs diets on mammary tumor inhibition in transgenic Her2/neu mice that were administered the diets from prepubescence until adulthood. Herein, we present an integrated DNA methylome and transcriptome analyses for defining the early-life epigenetic impacts of combined BSp and GTPs on mammary tumors and our results indicate that a combinatorial administration of BSp and GTPs have a stronger impact at both transcriptome and methylome levels in comparison to BSp or GTPs administered alone. We also demonstrated a streamlined approach by performing an extensive preprocessing, quality assessment and downstream analyses on the genomic dataset. Our identification of differentially methylated regions in response to dietary botanicals administered during early-life will allow us to identify key genes and facilitate implementation of the subsequent downstream functional analyses on a genomic scale and various epigenetic modifications that are crucial in preventing ER(−) mammary cancer. Furthermore, our realtime PCR results were also found to be consistent with our genome-wide analysis results. These results could be exploited as a comprehensive resource for understanding understudied genes and their associated epigenetic modifications in response to these dietary botanicals.
Collapse
|
7
|
Sun R, Liu J, Nie S, Li S, Yang J, Jiang Y, Cheng W. Construction of miRNA-mRNA Regulatory Network and Prognostic Signature in Endometrial Cancer. Onco Targets Ther 2021; 14:2363-2378. [PMID: 33854334 PMCID: PMC8039850 DOI: 10.2147/ott.s272222] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 03/10/2021] [Indexed: 01/04/2023] Open
Abstract
Introduction This bioinformatic study confirmed a new miRNA-mRNA regulatory network and a prognostic signature in endometrial cancer (EC). Materials and Methods We downloaded RNA-seq and miRNA-seq data of EC from the TCGA database, then used EdegR package to screen differentially expressed miRNAs and mRNAs (DE-miRNAs and DE-mRNAs). Then, we constructed a regulatory network of EC-associated miRNAs and hub genes by Cytoscape, and determined the expression of unexplored miRNAs in EC tissues and normal adjacent tissues by quantitative Real-Time PCR (qRT-PCR). A prognostic signature model and a predictive nomogram were constructed. Finally, we explored the association between the prognostic model and the immune cell infiltration. Results A total of 11,531 DE-mRNAs and 236 DE-miRNAs, as well as 275 and 118 candidate DEGs for upregulated and downregulated DE-miRNAs were screened out. The miRNA-mRNA network included 5 downregulated and 13 upregulated DE-miRNAs. qRT-PCR proved that the expression levels of miRNA-18a-5p, miRNA-18b-5p, miRNA-449c-5p and miRNA-1224-5p and their target genes (NR3C1, CTGF, MYC, and TNS1) were consistent with our predictions. Univariate and multivariate Cox proportional hazards regression analyses of the hub genes revealed a significant prognostic value of NR3C1, EZH2, AND GATA4, and these genes were closely related to eight types of immune infiltration cells. Conclusion We identified three genes as candidate biomarkers for EC, which may provide a theoretical basis for targeted therapy.
Collapse
Affiliation(s)
- Rui Sun
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Jinhui Liu
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Sipei Nie
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Siyue Li
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Jing Yang
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Yi Jiang
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Wenjun Cheng
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| |
Collapse
|
8
|
The Unique Biology behind the Early Onset of Breast Cancer. Genes (Basel) 2021; 12:genes12030372. [PMID: 33807872 PMCID: PMC8000244 DOI: 10.3390/genes12030372] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/26/2021] [Accepted: 03/02/2021] [Indexed: 01/19/2023] Open
Abstract
Breast cancer commonly affects women of older age; however, in developing countries, up to 20% of breast cancer cases present in young women (younger than 40 years as defined by oncology literature). Breast cancer in young women is often defined to be aggressive in nature, usually of high histological grade at the time of diagnosis and negative for endocrine receptors with poor overall survival rate. Several researchers have attributed this aggressive nature to a hidden unique biology. However, findings in this aspect remain controversial. Thus, in this article, we aimed to review published work addressing somatic mutations, chromosome copy number variants, single nucleotide polymorphisms, differential gene expression, microRNAs and gene methylation profile of early-onset breast cancer, as well as its altered pathways resulting from those aberrations. Distinct biology behind early-onset of breast cancer was clear among estrogen receptor-positive and sporadic cases. However, further research is needed to determine and validate specific novel markers, which may help in customizing therapy for this group of patients.
Collapse
|
9
|
Li Z, Jiang J, Yi X, Wang G, Wang S, Sun X. miR-18b regulates the function of rabbit ovary granulosa cells. Reprod Fertil Dev 2021; 33:363-371. [PMID: 33641714 DOI: 10.1071/rd20237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 01/17/2021] [Indexed: 11/23/2022] Open
Abstract
MicroRNAs (miRNAs) have been determined to participate in the process of oestradiol production. Generally, there are two pathways by which oestradiol levels change, one being the state of cells (i.e. the status of enzymes involved in the synthesis of hormones such as oestradiol) and the other being the number of cells that secrete oestradiol. It is known that oestrogens are the main steroids produced by granulosa cells (GCs) of mature ovarian follicles. In this study we explored the function of miR-18b in rabbit GCs by overexpressing or inhibiting its activity. We found that miR-18b silencing promoted the secretion of oestradiol by significantly affecting the expression of steroidogenesis-related genes. Thus, miR-18b may act as a negative regulator of the production of enzymes related to oestradiol synthesis and affect oestradiol production. Furthermore, the effects of miR-18b on the proliferation, cell cycle and apoptosis of GCs were investigated using a cell counting kit (CCK-8) proliferation assay, detection of annexin V-fluorescein isothiocyanate apoptosis, flow cytometry and quantitative polymerase chain reaction. The results showed that miR-18b upregulated GC apoptosis (miR-18b overexpression decreases cell growth and stimulates apoptosis). These findings suggest that miR-18b and the oestrogen receptor 1 (ESR1) gene may be attractive targets to further explore the molecular regulation of GCs. The miR-18b may also explain, in part, the abnormal folliculogenesis in mammals caused by conditions such as polycystic ovary syndrome, primary ovarian insufficiency, and others.
Collapse
Affiliation(s)
- Ze Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Junyi Jiang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Xiaohua Yi
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Guoyan Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Shuhui Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Xiuzhu Sun
- College of Grassland Agriculture, Northwest A&F University, Yangling, Shaanxi, PR China; and Corresponding author.
| |
Collapse
|
10
|
mRNA and miRNA Expression Analyses of the MYC/ E2F/miR-17-92 Network in the Most Common Pediatric Brain Tumors. Int J Mol Sci 2021; 22:ijms22020543. [PMID: 33430425 PMCID: PMC7827072 DOI: 10.3390/ijms22020543] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 12/30/2020] [Accepted: 01/04/2021] [Indexed: 12/25/2022] Open
Abstract
Numerous molecular factors disrupt the correctness of the cell cycle process leading to the development of cancer due to increased cell proliferation. Among known causative factors of such process is abnormal gene expression. Nowadays in the light of current knowledge such alterations are frequently considered in the context of mRNA–miRNA correlation. One of the molecular factors with potential value in tumorigenesis is the feedback loop between MYC and E2F genes in which miR-17-5p and miR-20a from the miR-17-92 cluster are involved. The current literature shows that overexpression of the members of the OncomiR-1 are involved in the development of many solid tumors. In the present work, we investigated the expression of components of the MYC/E2F/miR-17-92 network and their closely related elements including members of MYC and E2F families and miRNAs from two paralogs of miR-17-92: miR-106b-25 and miR-106a-363, in the most common brain tumors of childhood, pilocytic astrocytoma (PA), WHO grade 1; ependymoma (EP), WHO grade 2; and medulloblastoma (MB), WHO grade 4. We showed that the highest gene expression was observed in the MYC family for MYCN and in the E2F family for E2F2. Positive correlation was observed between the gene expression and tumor grade and type, with the highest expression being noted for medulloblastomas, followed by ependymomas, and the lowest for pilocytic astrocytomas. Most members of miR-17-92, miR-106a-363 and miR-106b-25 clusters were upregulated and the highest expression was noted for miR-18a and miR-18b. The rest of the miRNAs, including miR-19a, miR-92a, miR-106a, miR-93, or miR-25 also showed high values. miR-17-5p, miR-20a obtained a high level of expression in medulloblastomas and ependymomas, while close to the control in the pilocytic astrocytoma samples. miRNA expression also depended on tumor grade and histology.
Collapse
|
11
|
Yu H, Xu H, Yan C, Zhu S, Lan X, Lu Y, He Q, Yin H, Zhu Q, Zhao X, Li D, Liu Y, Wang Y. gga-miR-148a-5p-Targeting PDPK1 Inhibits Proliferation and Cell Cycle Progression of Avain Leukosis Virus Subgroup J (ALV-J)-Infected Cells. Front Cell Dev Biol 2021; 8:587889. [PMID: 33384993 PMCID: PMC7769946 DOI: 10.3389/fcell.2020.587889] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 11/17/2020] [Indexed: 11/21/2022] Open
Abstract
Avian leukosis virus subgroup J disease (ALV-J) is a contagious and immunosuppressive avian disease caused by ALV-J virus. Although miRNA participate in various biological processes of tumors, little is known about the potential role of miRNA in ALV-J. Our previous miRNA and RNA sequencing data showed that the expression of gga-miR-148a-5p was significantly different in ALV-J-infected chicken spleens compared with non-infected chickens. The aim of this study was to investigate the functional roles of gga-miR-148a-5p and identify downstream targets regulated by gga-miR-148a-5p in ALV-J-infected chickens. We found that the expression of gga-miR-148a-5p was significantly downregulated during ALV-J infection of chicken embryo fibroblasts (CEF). Dual luciferase reporter assays demonstrated that PDPK1 is a direct target gene of gga-miR-148a-5p. In vitro, overexpression of gga-miR-148a-5p significantly promoted ALV-J-infected CEF cell proliferation, included cell cycle, whereas inhibition of gga-miR-148a-5p had an opposite effect. Inhibition of PDPK1 promoted the proliferation of ALV-J-infected cells but had no effect on the activity of NF-κB. Together, these results suggested that gga-miR-148a-5p targets PDPK1 to inhibit the proliferation and cell cycle of ALV-J-infected CEF cells. Our study provides a new understanding for the tumor mechanism of ALV-J infection.
Collapse
Affiliation(s)
- Heling Yu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Hengyong Xu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Chaoyang Yan
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Shiliang Zhu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Xi Lan
- College of Animal Science and Technology, Southwest University, Chongqing, China
| | - Yuxiang Lu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Qijian He
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Huadong Yin
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Qing Zhu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Xiaoling Zhao
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Diyan Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Yiping Liu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Yan Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| |
Collapse
|
12
|
MotieGhader H, Masoudi-Sobhanzadeh Y, Ashtiani SH, Masoudi-Nejad A. mRNA and microRNA selection for breast cancer molecular subtype stratification using meta-heuristic based algorithms. Genomics 2020; 112:3207-3217. [DOI: 10.1016/j.ygeno.2020.06.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/13/2020] [Accepted: 06/02/2020] [Indexed: 02/06/2023]
|
13
|
Poli G, Fabi C, Bellet MM, Costantini C, Nunziangeli L, Romani L, Brancorsini S. Epigenetic Mechanisms of Inflammasome Regulation. Int J Mol Sci 2020; 21:E5758. [PMID: 32796686 PMCID: PMC7460952 DOI: 10.3390/ijms21165758] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 08/05/2020] [Accepted: 08/08/2020] [Indexed: 02/07/2023] Open
Abstract
The innate immune system represents the host's first-line defense against pathogens, dead cells or environmental factors. One of the most important inflammatory pathways is represented by the activation of the NOD-like receptor (NLR) protein family. Some NLRs induce the assembly of large caspase-1-activating complexes called inflammasomes. Different types of inflammasomes have been identified that can respond to distinct bacterial, viral or fungal infections; sterile cell damage or other stressors, such as metabolic imbalances. Epigenetic regulation has been recently suggested to provide a complementary mechanism to control inflammasome activity. This regulation can be exerted through at least three main mechanisms, including CpG DNA methylation, histones post-translational modifications and noncoding RNA expression. The repression or promotion of expression of different inflammasomes (NLRP1, NLRP2, NLRP3, NLRP4, NLRP6, NLRP7, NLRP12 and AIM2) through epigenetic mechanisms determines the development of pathologies with variable severity. For example, our team recently explored the role of microRNAs (miRNAs) targeting and modulating the components of the inflammasome as potential biomarkers in bladder cancer and during therapy. This suggests that the epigenetic control of inflammasome-related genes could represent a potential target for further investigations of molecular mechanisms regulating inflammatory pathways.
Collapse
Affiliation(s)
- Giulia Poli
- Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy; (M.M.B.); (C.C.); (L.R.); (S.B.)
| | - Consuelo Fabi
- Department of Surgical and Biomedical Sciences, Urology and Andrology Clinic, University of Perugia, 05100 Terni, Italy;
| | - Marina Maria Bellet
- Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy; (M.M.B.); (C.C.); (L.R.); (S.B.)
| | - Claudio Costantini
- Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy; (M.M.B.); (C.C.); (L.R.); (S.B.)
| | - Luisa Nunziangeli
- Polo d’Innovazione di Genomica, Genetica e Biologia, 05100 Terni, Italy;
| | - Luigina Romani
- Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy; (M.M.B.); (C.C.); (L.R.); (S.B.)
| | - Stefano Brancorsini
- Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy; (M.M.B.); (C.C.); (L.R.); (S.B.)
| |
Collapse
|
14
|
MicroRNA Signatures in Blood or Bone Marrow Distinguish Subtypes of Pediatric Acute Lymphoblastic Leukemia. Transl Oncol 2020; 13:100800. [PMID: 32531485 PMCID: PMC7292917 DOI: 10.1016/j.tranon.2020.100800] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 05/01/2020] [Accepted: 05/04/2020] [Indexed: 12/18/2022] Open
Abstract
OncomiRs are microRNAs that are associated with early onset of specific cancers. To identify microRNAs involved in pediatric acute lymphoblastic leukemia (ALL) subtypes T-ALL and B-ALL, peripheral blood and bone marrow samples were independently subjected to microarray analysis using two different high-fidelity array platforms. The unique and common gene signatures from both arrays were validated by TaqMan individual assays in 100 pediatric ALL samples. Survival studies were carried out in the test set and validation set with 50 randomly selected samples in each set. MicroRNA expression profile revealed characteristic signatures for distinguishing T and B lineages and identified 51 novel microRNAs in pediatric ALL. Interestingly, the present study also revealed endogenous similarities and differences between blood and bone marrow within each ALL subtype. When Cox regression analysis was carried out with these identified microRNAs, 11 of them exhibited expression levels significantly correlated with survival. Validation of some of the common and relevant microRNAs from both arrays showed that their targets are involved in key oncogenic signaling pathways. Thus, this study suggests that microRNAs have the potential to become important diagnostic tools for identification and monitoring clinical outcomes in ALL patients.
Collapse
|
15
|
Egeland NG, Jonsdottir K, Aure MR, Sahlberg K, Kristensen VN, Cronin-Fenton D, Skaland I, Gudlaugsson E, Baak JPA, Janssen EAM. MiR-18a and miR-18b are expressed in the stroma of oestrogen receptor alpha negative breast cancers. BMC Cancer 2020; 20:377. [PMID: 32370743 PMCID: PMC7201801 DOI: 10.1186/s12885-020-06857-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 04/13/2020] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Previously, we have shown that miR-18a and miR-18b gene expression strongly correlates with high proliferation, oestrogen receptor -negativity (ER-), cytokeratin 5/6 positivity and basal-like features of breast cancer. METHODS We investigated the expression and localization of miR-18a and -18b in formalin fixed paraffin embedded (FFPE) tissue from lymph node negative breast cancers (n = 40), by chromogenic in situ hybridization (CISH). The expression level and in situ localization of miR-18a and -18b was assessed with respect to the presence of tumour infiltrating lymphocytes (TILs) and immunohistochemical markers for ER, CD4, CD8, CD20, CD68, CD138, PAX5 and actin. Furthermore, in two independent breast cancer cohorts (94 and 377 patients) the correlation between miR-18a and -18b expression and the relative quantification of 22 immune cell types obtained from the CIBERSORT tool was assessed. RESULTS CISH demonstrated distinct and specific cytoplasmic staining for both miR-18a and miR-18b, particularly in the intratumoural stroma and the stroma surrounding the tumour margin. Staining by immunohistochemistry revealed some degree of overlap of miR-18a and -18b with CD68 (monocytes/macrophages), CD138 (plasma cells) and the presence of high percentages of TILs. CIBERSORT analysis showed a strong correlation between M1-macrophages and CD4+ memory activated T-cells with mir-18a and -18b. CONCLUSIONS Our study demonstrates that miR-18a and miR-18b expression is associated with ER- breast tumours that display a high degree of inflammation. This expression is potentially associated specifically with macrophages. These results suggest that miR-18a and miR-18b may play a role in the systemic immunological response in ER- tumours.
Collapse
Affiliation(s)
- Nina Gran Egeland
- Department of Pathology, Stavanger University Hospital, Box 8100, 4068, Stavanger, Norway.,Department of Chemistry, Bioscience and Environmental Engineering, University of Stavanger, Stavanger, Norway
| | - Kristin Jonsdottir
- Department of Pathology, Stavanger University Hospital, Box 8100, 4068, Stavanger, Norway.
| | - Miriam Ragle Aure
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Kristine Sahlberg
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway.,Department of Research and Innovation, Vestre Viken Hospital Trust, Drammen, Norway
| | - Vessela N Kristensen
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway.,Department of Clinical Molecular Biology (EpiGen), Division of Medicine, Akershus University Hospital, Lørenskog, Norway
| | | | - Ivar Skaland
- Department of Pathology, Stavanger University Hospital, Box 8100, 4068, Stavanger, Norway
| | - Einar Gudlaugsson
- Department of Pathology, Stavanger University Hospital, Box 8100, 4068, Stavanger, Norway
| | - Jan P A Baak
- Department of Pathology, Stavanger University Hospital, Box 8100, 4068, Stavanger, Norway.,Dr. Med. Jan Baak AS, Tananger, Norway
| | - Emiel A M Janssen
- Department of Pathology, Stavanger University Hospital, Box 8100, 4068, Stavanger, Norway.,Department of Chemistry, Bioscience and Environmental Engineering, University of Stavanger, Stavanger, Norway
| |
Collapse
|
16
|
Kashyap D, Kaur H. Cell-free miRNAs as non-invasive biomarkers in breast cancer: Significance in early diagnosis and metastasis prediction. Life Sci 2020; 246:117417. [PMID: 32044304 DOI: 10.1016/j.lfs.2020.117417] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 01/28/2020] [Accepted: 02/05/2020] [Indexed: 02/07/2023]
Abstract
Breast cancer is one of the genetic diseases causing a high mortality among women around the world. Despite the availability of advanced diagnostic tools and treatment strategies, the incidence of breast cancer is increasing every year. This is due to the lack of accurate and reliable biomarkers whose deficiency creates difficulty in early breast cancer recognition, subtypes determination, and metastasis prophecy. Although biomarkers such as ER, PR, Her2, Ki-67, and other genetic platforms e.g. MammaPrint®, Oncotype DX®, Prosigna® or EndoPredict® are available for determination of breast cancer diagnosis and prognosis. However, pertaining to heterogeneous nature, lack of sensitivity, and specificity of these markers, it is still incessant to overcome breast cancer burden. Therefore, a novel biomarker is urgently needed for therapeutic diagnosis and improving prognosis. Lately, it has become more evident that cell-free miRNAs might be useful as good non-invasive biomarkers that are associated with different events in carcinogenesis. For example, some known biomarkers such as miR-21, miR-23a, miR-34a are associated with molecular subtyping and different biomolecular aspects i.e. apoptosis, angiogenesis, metastasis, and miR-1, miR-10b, miR-16 are associated with drug response. Cell-free miRNAs present in human body fluids have proven to be potential biomarkers with significant prognostic and predictive values. Numerous studies have found a distinct expression profile of circulating miRNAs in breast tumour versus non-tumour and in early and advanced-stage, thus implicating its clinical relevance. This review article will highlight the importance of different cell-free miRNAs as a biomarker for early breast cancer detection, subtype classification, and metastasis forecast.
Collapse
Affiliation(s)
- Dharambir Kashyap
- Department of Histopathology, Postgraduation Institute of Medical Education and Research (PGIMER), Chandigarh 160012, India
| | - Harmandeep Kaur
- Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, Ontario, Canada.
| |
Collapse
|
17
|
Botti G, Cantile M, Collina F, Cerrone M, Sarno S, Anniciello A, Di Bonito M. Morphological and pathological features of basal-like breast cancer. Transl Cancer Res 2019; 8:S503-S509. [PMID: 35117128 PMCID: PMC8797286 DOI: 10.21037/tcr.2019.06.50] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 06/25/2019] [Indexed: 12/19/2022]
Abstract
Basal-like breast cancer (BLBC) is characterized by high grade, high mitotic indices, presence of central necrotic or fibrotic zones, and lymphocytic infiltrate. Patients presenting with BLBC have a poor prognosis and a short-term disease-free and overall survival. BLBCs may include different histological types of breast cancers but the most common histological type is represented by invasive ductal carcinomas of no special type (IDC-NST). Typical immunohistochemical markers for these tumors are basal-type cytokeratin markers such as CK5/6, CK14, CK17, but several BLBCs also express luminal-type CKs, such as CK8/18, CK19. Different molecular alterations, including BRCA1 dysfunction, p53 mutations, up-regulation of EGFR, inactivation of PTEN and the aberrant expression of many non-coding RNAs molecules are detected in BLBC cells suggesting the possibility of defining new targeted therapeutic strategies for this tumor type.
Collapse
Affiliation(s)
- Gerardo Botti
- Scientific Direction, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, Naples, Italy
| | - Monica Cantile
- Pathology Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, Naples, Italy
| | - Francesca Collina
- Pathology Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, Naples, Italy
| | - Margherita Cerrone
- Pathology Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, Naples, Italy
| | - Sabrina Sarno
- Pathology Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, Naples, Italy
| | - Annamaria Anniciello
- Pathology Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, Naples, Italy
| | - Maurizio Di Bonito
- Pathology Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, Naples, Italy
| |
Collapse
|
18
|
Zhong G, Lou W, Yao M, Du C, Wei H, Fu P. Identification of novel mRNA-miRNA-lncRNA competing endogenous RNA network associated with prognosis of breast cancer. Epigenomics 2019; 11:1501-1518. [PMID: 31502865 DOI: 10.2217/epi-2019-0209] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Aim: To identify novel competing endogenous RNA (ceRNA) network related to patients prognosis in breast cancer. Materials & methods: Dysregulated mRNA based on intersection of three Gene Expression Omnibus and The Cancer Genome Atlas datasets were analyzed by bioinformatics. Results: In total 72 upregulated and 208 downregulated genes were identified. Functional analysis showed that some pathways related to cancer were significantly enriched. By means of stepwise reverse prediction and validation from mRNA to lncRNA, 19 hub genes, nine key miRNA and four key lncRNAs were identified by expression and survival analysis. Ultimately, the coexpression analysis identified RRM2-let-7a-5p-SNHG16/MAL2 as key ceRNA subnetwork associated with prognosis of breast cancer. Conclusion: We successfully constructed a novel ceRNA network, among which each component was significantly associated with breast cancer prognosis.
Collapse
Affiliation(s)
- Guansheng Zhong
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, Zhejiang 310003, PR China
| | - Weiyang Lou
- Program of Innovative Cancer Therapeutics, Division of Hepatobiliary & Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, College of Medicine, Key Laboratory of Organ Transplantation, Zhejiang University, 79 Qingchun Road, Zhejiang Province, Hangzhou 310003, PR China
| | - Minya Yao
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, Zhejiang 310003, PR China
| | - Chengyong Du
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, Zhejiang 310003, PR China
| | - Haiyan Wei
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, Zhejiang 310003, PR China
| | - Peifen Fu
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, Zhejiang 310003, PR China
| |
Collapse
|
19
|
Ke MJ, Ji LD, Li YX. Explore prognostic marker of colorectal cancer based on ceRNA network. J Cell Biochem 2019; 120:19358-19370. [PMID: 31490563 DOI: 10.1002/jcb.28860] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 02/11/2019] [Accepted: 02/14/2019] [Indexed: 01/06/2023]
Abstract
Colorectal cancer (CRC) is one of the most common malignant tumors in the world. With the deepening of people's understanding of CRC at the molecular level, the survival and prognosis of CRC have been significantly improved with the help of surgery, radiotherapy, and chemotherapy, molecular targeted biological therapy and early detection of diseases. The research of different disciplines and the development of multihistological analysis in recent years have proved that the occurrence and development of CRC is a complex biological process with the common action of multiple factors, which involves the huge changes of various histological levels such as the genome, transcriptome, and epigenome. At present, the abnormal expression of protein products in the transcription process has attracted more and more attention. Based on the sensitivity and timeliness of its changes, it has become a hot topic to study the occurrence and development mechanism of CRC through transcriptome changes, so as to provide markers for early diagnosis and prognosis. In recent years, competitive endogenous RNA (ceRNA) has become one of the hot topics in cancer research. The ceRNA hypothesis holds that transcripts such as long noncoding RNA can competitively bind microRNA (miRNA), thus preventing miRNA from binding to messenger RNA (mRNA) and thereby regulating the expression of mRNA. At present, the interaction mechanism of ceRNA in CRC is still unclear, and exploring its interaction relationship is of great significance to elucidate the occurrence and development mechanism of CRC. In this study, we used The Cancer Genome Atlas (TCGA) RNA - seq data of colorectal Cancer and microRnas - seq data to construct colorectal Cancer ceRNA topology network to mine key RNAs that influence the prognosis of colorectal cancer, providing potential RNA biomarkers.
Collapse
Affiliation(s)
- Mu-Jing Ke
- Department of Ultrasound, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Lian-Dong Ji
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Yi-Xiong Li
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| |
Collapse
|
20
|
Sun G, Li F, Ma X, Sun J, Jiang R, Tian Y, Han R, Li G, Wang Y, Li Z, Kang X, Li W. gga-miRNA-18b-3p Inhibits Intramuscular Adipocytes Differentiation in Chicken by Targeting the ACOT13 Gene. Cells 2019; 8:E556. [PMID: 31181634 PMCID: PMC6627633 DOI: 10.3390/cells8060556] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 06/04/2019] [Accepted: 06/05/2019] [Indexed: 12/13/2022] Open
Abstract
Intramuscular fat (IMF) is the most important evaluating indicator of chicken meat quality, the content of which is positively correlated with tenderness, flavor, and succulence of the meat. Chicken IMF deposition process is regulated by many factors, including genetic, nutrition, and environment. Although large number of omics' studies focused on the IMF deposition process, the molecular mechanism of chicken IMF deposition is still poorly understood. In order to study the role of miRNAs in chicken intramuscular adipogenesis, the intramuscular adipocyte differentiation model (IMF-preadipocytes and IMF-adipocytes) was established and subject to miRNA-Seq. A total of 117 differentially expressed miRNAs between two groups were obtained. Target genes prediction and functional enrichment analysis revealed that eight pathways involved in lipid metabolism related processes, such as fatty acid metabolism and fatty acid elongation. Meanwhile a putative miRNA, gga-miR-18b-3p, was identified be served a function in the intramuscular adipocyte differentiation. Luciferase assay suggested that the gga-miR-18b-3p targeted to the 3'UTR of ACOT13. Subsequent functional experiments demonstrated that gga-miR-18b-3p acted as an inhibitor of intramuscular adipocyte differentiation by targeting ACOT13. Our findings laid a new theoretical foundation for the study of lipid metabolism, and also provided a potential target to improve the meat quality in the poultry industry.
Collapse
Affiliation(s)
- Guirong Sun
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China.
| | - Fang Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China.
| | - Xiangfei Ma
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China.
| | - Junwei Sun
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China.
| | - Ruirui Jiang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China.
| | - Yadong Tian
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China.
| | - Ruili Han
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China.
| | - Guoxi Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China.
| | - Yanbin Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China.
| | - Zhuanjian Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China.
| | - Xiangtao Kang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China.
| | - Wenting Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China.
| |
Collapse
|
21
|
Zhang Z, Luo G, Yu C, Yu G, Jiang R, Shi X. MicroRNA-493-5p inhibits proliferation and metastasis of osteosarcoma cells by targeting Kruppel-like factor 5. J Cell Physiol 2019; 234:13525-13533. [PMID: 30773645 DOI: 10.1002/jcp.28030] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 11/27/2018] [Indexed: 01/04/2023]
Abstract
Osteosarcoma, including spinal osteosarcoma, has properties of high degree of malignancy, high rate of recurrence, and high incidence of metastasis. microRNAs can exert oncogenic or tumor suppressive roles in cancer cells. This study explored the effects of microRNA-493-5p (miR-493-5p) on osteosarcoma cell viability, migration, invasion, and apoptosis, as well as the underlying possible mechanism. First, the expression of miR-493-5p in osteosarcoma tissues and cells was detected using quantitative reverse transcription polymerase chain reaction (qRT-PCR). Then, the effects of miR-493-5p overexpression (or suppression) on osteosarcoma cell viability, migration, invasion, and apoptosis, as well as Kruppel-like factor 5 (KLF5) expression, were assessed using the Cell Counting Kit-8 assay, two-chamber transwell assay, Annexin V-FITC/PI apoptosis detection kit, qRT-PCR, and western blotting, respectively. Finally, the roles of KLF5 in miR-493-5p suppression-induced U20S cell viability, migration, and invasion enhancement, as well as the PI3K/AKT pathway activation, were evaluated. We found that miR-493-5p had lower expression in tumor tissues of spinal osteosarcoma and osteosarcoma cells. Overexpression of miR-493-5p inhibited osteosarcoma U20S cell viability, migration, and invasion, but induced cell apoptosis. On the contrary, suppression of miR-493-5p-promoted U20S cell viability, migration, and invasion. KLF5 was a direct target gene of miR-493-5p, which participated in the effects of miR-493-5p on U20S cell viability, migration, invasion, and apoptosis. Furthermore, suppression of the miR-493-5p activated PI3K/AKT pathway in U20S cells by upregulating KLF5. In conclusion, we revealed that miR-493-5p exerted tumor suppressive roles in spinal osteosarcoma and osteosarcoma cells. Overexpression of miR-493-5p inhibited proliferation and metastasis of osteosarcoma cells by downregulating KLF5 and inactivating the PI3K/AKT signaling pathway.
Collapse
Affiliation(s)
- Zaiqing Zhang
- Department of Orthopaedics, Linyi Central Hospital, Yishui, China
| | - Gongzeng Luo
- Department of Orthopaedics, Linyi Central Hospital, Yishui, China
| | - Chuandong Yu
- Department of Orthopaedics, Heze Municipal Hospital, Heze, China
| | - Guisheng Yu
- Department of Orthopaedics, Heze Municipal Hospital, Heze, China
| | - Rui Jiang
- Department of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Xuefeng Shi
- Department of Orthopedics, Trauma & Hand and Foot Surgery, Jinan Central Hospital Affiliated to Shandong University, Jinan, China
| |
Collapse
|
22
|
Luo D, Chen J, Huang S, Xu J, Song X, Yu P. MicroRNA‑18b acts as an oncogene in gastric cancer by directly targeting Kruppel‑like factor 6. Mol Med Rep 2019; 19:1926-1934. [PMID: 30628682 DOI: 10.3892/mmr.2019.9830] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 03/06/2018] [Indexed: 11/05/2022] Open
Abstract
Gastric cancer (GC) is the fourth most frequently occurring cancer and the second most common cause of cancer‑associated mortality worldwide. An increasing number of studies have reported that microRNAs (miRNAs/miRs) contribute to the regulation of GC development and progression. Therefore, investigation of the miRNAs involved in the development of GC may result in identification of an effective therapeutic target for patients with this malignancy. miR‑18b has been reported to be aberrantly expressed in several types of human cancer. However, the expression pattern, biological role and specific functional mechanism of miR‑18b in GC remains to be elucidated. In the present study, reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) analysis revealed that miR‑18b was significantly upregulated in GC tissues and cell lines compared with normal gastric tissues and the human gastric epithelial immortalized cell line GES‑1, respectively. High miR‑18b expression was significantly associated with lymph node metastasis, invasive depth and the Tumor Node Metastasis stage of patients with GC. Additionally, functional assays indicated that the inhibition of miR‑18b attenuated cell proliferation and invasion in GC. Furthermore, Kruppel‑like factor (KLF)‑6 was identified as a direct target gene of miR‑18b in GC, from the results of bioinformatics analysis, a luciferase reporter assay, RT‑qPCR and western blot analysis. An inverse association was observed between miR‑18b and KLF6 mRNA levels in GC tissues. KLF6 knockdown partially abrogated the effects of miR‑18b inhibition on GC cell proliferation and invasion. Therefore, miR‑18b/KLF6 targeted therapy may provide a promising treatment for patients with GC.
Collapse
Affiliation(s)
- Dongming Luo
- Department of Gastrointestinal Surgery, The Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou, Guangxi 545005, P.R. China
| | - Junqiang Chen
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Shifeng Huang
- Department of Gastrointestinal Surgery, The Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou, Guangxi 545005, P.R. China
| | - Junyi Xu
- Department of Gastrointestinal Surgery, The Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou, Guangxi 545005, P.R. China
| | - Xuemin Song
- Department of Gastrointestinal Surgery, The Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou, Guangxi 545005, P.R. China
| | - Pengcheng Yu
- Department of Gastrointestinal Surgery, The Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou, Guangxi 545005, P.R. China
| |
Collapse
|
23
|
The oncoprotein HBXIP promotes human breast cancer growth through down-regulating p53 via miR-18b/MDM2 and pAKT/MDM2 pathways. Acta Pharmacol Sin 2018; 39:1787-1796. [PMID: 30181579 DOI: 10.1038/s41401-018-0034-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 03/27/2018] [Indexed: 12/12/2022] Open
Abstract
Mammalian hepatitis B X-interacting protein (HBXIP) is an 18-kDa protein that regulates a large number of transcription factors such as TF-IID, E2F1, SP1, STAT3, c-Myc, and LXR by serving as an oncogenic transcription coactivator and plays an important role in the development of breast cancer. We previously showed that HBXIP as an oncoprotein could enhance the promoter activity of MDM2 through coactivating p53, promoting the MDM2 transcription in breast cancer. In this study we investigated the molecular mechanisms underlying the modulation of MDM2/p53 interaction by HBXIP in human breast cancer MCF-7 cells in vitro and in vivo. We showed that HBXIP could up-regulate MDM2 through inducing DNA methylation of miR-18b, thus suppressing the miR-18b expression, leading to the attenuation of p53 in breast cancer cells. In addition, HBXIP could promote the phosphorylation of MDM2 by increasing the level of pAKT and bind to pMDM2, subsequently enhancing the interaction between MDM2 and p53 for the down-regulation of p53 in breast cancer cells. In MCF-7 breast cancer xenograft nude mice, we also observed that overexpression of HBXIP promoted breast cancer growth through the miR-18b/MDM2 and pAKT/MDM2 pathways. In conclusion, oncoprotein HBXIP suppresses miR-18b to elevate MDM2 and activates pAKT to phosphorylate MDM2 for enhancing the interaction between MDM2 and p53, leading to p53 degradation in promotion of breast cancer growth. Our findings shed light on a novel mechanism of p53 down-regulation during the development of breast cancer.
Collapse
|
24
|
Vashisht A, Tanwar J, Motiani RK. Regulation of proto-oncogene Orai3 by miR18a/b and miR34a. Cell Calcium 2018; 75:101-111. [PMID: 30216788 DOI: 10.1016/j.ceca.2018.08.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 08/28/2018] [Accepted: 08/28/2018] [Indexed: 12/16/2022]
Abstract
Store Operated Ca2+ Entry (SOCE) mediated by Orai channels is a ubiquitous Ca2+ influx pathway that regulates several cellular functions. We have earlier reported that Orai3, the mammalian specific Orai1 homolog, plays a critical role in breast cancer progression. More recently, Orai3 was demonstrated to regulate prostate and lung tumorigenesis. Although the tumorigenic potential of Orai3 is associated with increase in its expression, the molecular machinery regulating its expression remains largely unexplored. Here, by performing extensive bioinformatics analysis and functional studies, we identify and characterize micro-RNAs (miRNAs) that regulate Orai3 expression and function. We demonstrate that miR18a and miR18b positively regulate Orai3 whereas miR34a represses Orai3 expression and function. All these miRs exert their effect on Orai3 by virtue of their direct action on Orai3 3'UTR. These miRs provide novel opportunities for targeting Orai3 for better management of cancer. This study further opens up the possibility of targeting specific Orai homologs by different miRs in tissue and disease specific context.
Collapse
Affiliation(s)
- Ayushi Vashisht
- CSIR- Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India
| | - Jyoti Tanwar
- CSIR- Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India
| | - Rajender K Motiani
- CSIR- Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India.
| |
Collapse
|
25
|
ADAMTS6 suppresses tumor progression via the ERK signaling pathway and serves as a prognostic marker in human breast cancer. Oncotarget 2018; 7:61273-61283. [PMID: 27542224 PMCID: PMC5308650 DOI: 10.18632/oncotarget.11341] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Accepted: 07/27/2016] [Indexed: 02/05/2023] Open
Abstract
A disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS) family is involved in tumor development. However, how ADAMTS6 influences cancer remains unknown. We investigated the biological function and clinical implications of ADAMTs6 in breast cancer (BC). Its functional significance in BC cell lines was confirmed by ADAMTs6 overexpression or downregulation both in vitro and in vivo studies. Enhanced ADAMTS6 expression suppressed cell migration, invasion, and tumorigenesis, whereas knockdown promoted these characteristics. The extracellular signal-regulated kinase (ERK) pathway was partially involved in ADAMTS6-mediated inhibition of BC development, and miR-221-3p was identified as a predicted target for ADAMTS6. Results from the luciferase assay confirmed that miR-221-3p directly inhibited ADAMTS6 expression by binding its 3′-untranslated region. In addition, immunohistochemistry data from specimens from 182 BC patients showed that high ADAMTS6 expression was significantly correlated with favorable disease-free survival (DFS, p = 0.045). Subgroup analysis of patients with ER positive, PR positive or HER-2 negative tumors revealed that high ADAMTS6 expression more strongly extended DFS compared to low expression (p = 0.004, p = 0.009, p = 0.017). Multivariate analyses confirmed that ADAMTS6 expression was an independent risk factor for DFS (p = 0.011). Together, these data demonstrate that ADAMTS6 inhibits tumor development by regulating the ERK pathway via binding of miR-221-3p. Thus, its expression may be a potential prognostic biomarker for BC.
Collapse
|
26
|
Serum miRNA-27a and miRNA-18b as potential predictive biomarkers of hepatitis C virus-associated hepatocellular carcinoma. Mol Cell Biochem 2018; 447:125-136. [PMID: 29455432 DOI: 10.1007/s11010-018-3298-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Accepted: 01/24/2018] [Indexed: 01/28/2023]
Abstract
Hepatitis C virus (HCV) infection remains the main risk factor for chronic hepatitis (CHC), liver cirrhosis, and hepatocellular carcinoma (HCC). Changes in microRNA (miRNA) profiles can be associated with HCV infection and may either favor or inhibit the virus and/or its complication. Moreover, miRNAs have emerged as key regulators of various cancers including HCC. The aim of this work was to investigate the potentail role of miRNA-27a and miRNA-18b expression levels as non-invasive predictive biomarkers of hepatitis C virus-associated HCC. Furthermore, we aimed to explore potential association of these miRNAs expressions with HCC clinicopathological features' in Egyptian cases. This case control study included 200 participants [60 CHC patients, 39 post-HCV cirrhosis patients, 51 HCC cases], and 50 healthy volunteers. The serum miRNA-27a and miRNA-18b expression profiles were measured using quantitative real time-polymerase chain reaction (qRT-PCR). miRNA-27a and miRNA-18b expression levels were significantly increased in post-hepatitis C cirrhosis cases compared to control and CHC groups. In HCC group, only miRNA-27a expression levels were significantly increased. Moreover, miRNA-27a and miRNA-18b expression levels were positively correlated with distant metastasis, Child-Pugh grade, and lymph node metastasis. Logistic regression analysis revealed that miRNA-27a expression was an independent predictor of cirrhosis among CHC. Receiver operating characteristic (ROC) analyses showed that miRNA-27a and miRNA-18b expression levels were useful biomarkers discriminating cirrhosis from CHC (AUC were 0.672 and 0.487, respectively), and in differentiating HCC from post-hepatitis C cirrhosis (AUC were 0.897 and 0.723, respectively). By combined ROC analysis, power of miRNA-27a and miRNA-18b expression levels as discriminator between HCC from post-hepatitis C cirrhosis was high (AUC = 0.0.821). Serum microRNA-27a and miRNA-18b expression levels are promising diagnostic and non-invasive biomarkers of CHC, post-CHC cirrhosis, and HCC.
Collapse
|
27
|
Upregulation of MicroRNA 18b Contributes to the Development of Colorectal Cancer by Inhibiting CDKN2B. Mol Cell Biol 2017; 37:MCB.00391-17. [PMID: 28784723 DOI: 10.1128/mcb.00391-17] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 08/03/2017] [Indexed: 12/12/2022] Open
Abstract
MicroRNAs (miRNAs) exhibit aberrant expression in the initiation and progression of a variety of human cancers, including colorectal cancer (CRC). However, the exact mechanisms are not well defined. miRNA expression profiles were characterized by microarrays in CRC samples, and miRNA 18b (miR-18b) was increased significantly in tumor tissues. The expression of miR-18b was confirmed in the CRC cell lines SW480 and HCT116 and 44 clinical specimens by quantitative real-time PCR (qRT-PCR). Multiple linear regression analysis showed a strong correlation of miR-18b expression with lymph node and distant metastasis. Overexpression of miR-18b promoted cell proliferation by facilitating cell cycle progression, and knockdown of miR-18b significantly suppressed migration in CRC cells. CDKN2B was identified as a target of miR-18b by high-throughput RNA sequencing and bioinformatics. After transfection with a miR-18b mimic, expression of CDKN2B was reduced significantly in CRC cells, and the effect was restored when a miR-18b inhibitor was transfected. A luciferase assay indicated miR-18b directly binds to the 3' untranslated region (UTR) of CDKN2B. Expression of CDKN2B was downregulated in patient cancer tissues and negatively correlated with miR-18b. In a model of ectopic expression of miR-18b and CDKN2B, CDKN2B overexpression antagonized the effects of miR-18b in vitro and in vivo The data show that miR-18b is involved in CRC carcinogenesis through targeting CDKN2B.
Collapse
|
28
|
Han X, Zhang Y, Wang D, Fu X, Li M, Wang A. Upregulation of microRNA-18b induces phosphatase and tensin homolog to accelerate the migration and invasion abilities of ovarian cancer. Oncol Lett 2017; 14:5631-5637. [PMID: 29142608 DOI: 10.3892/ol.2017.6854] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 04/13/2017] [Indexed: 01/08/2023] Open
Abstract
Ovarian cancer (OC) is the most common cause of mortality from malignant gynecological cancers. Its lethality is mainly a result of tumors that are difficult to detect at the early stage and a lack of effective systemic therapy for advanced status cancer. MicroRNAs (miRNAs/miRs) are a category of single-stranded non-coding small RNAs that bind to their target mRNAs, and aberrant expression levels of miRNAs may serve key roles in regulating cell migration and invasion of various types of human cancer. Previous studies have demonstrated that miR-18b may function as an oncogene in numerous types of tumors, but its role and molecular mechanism in OC remained unclear. The present study demonstrated for the first time that miR-18b expression was significantly upregulated in OC tissues and cells. An increased miR-18b expression level was positively associated with tumor grade and lymph node metastasis. An in vitro assay revealed that exogenous inhibition of miR-18b expression may markedly inhibit OC cell migratory and invasive activities, whereas overexpression of miR-18b enhanced cell migratory and invasive abilities. Of note, using in silico methodologies and luciferase reporter assays, it was demonstrated that phosphatase and tensin homolog (PTEN) was a direct target of miR-18b in OC cells. Furthermore, knockdown of miR-18b expression may significantly decrease mRNA and protein expression levels of endogenous PTEN. The results of the present study highlighted that upregulation of miR-18b was involved in OC cell metastasis by directly targeting PTEN. Inhibition of miR-18b may be a novel effective diagnostic and therapeutic measure for OC.
Collapse
Affiliation(s)
- Xiaofang Han
- Department of Obstetrics and Gynecology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China.,Department of Reproduction, Shanxi Provincial People's Hospital, Taiyuan, Shanxi 030012, P.R. China
| | - Yan Zhang
- Department of Obstetrics and Gynecology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Dong Wang
- Department of Obstetrics and Gynecology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Xinyun Fu
- Department of Obstetrics and Gynecology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Meiqing Li
- Department of Obstetrics and Gynecology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Aiming Wang
- Department of Obstetrics and Gynecology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China.,Department of Reproduction, Navy General Hospital, Beijing 100048, P.R. China
| |
Collapse
|
29
|
Lu M, Ju S, Shen X, Wang X, Jing R, Yang C, Chu H, Cong H. Combined detection of plasma miR-127-3p and HE4 improves the diagnostic efficacy of breast cancer. Cancer Biomark 2017; 18:143-148. [PMID: 27983524 DOI: 10.3233/cbm-160024] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To explore the diagnostic value of combined detection of plasma miR-127-3p and HE4 for breast cancer (BC). METHODS Included in this study were 102 patients with pathologically confirmed BC who received treatment in the affiliated hospital of Nantong University between March 2015 and April 2016, 87 patients with benign breast tumors, and 90 healthy volunteers as control. Plasma miR-127-3p was detected by SYBR Green RT-qPCR, and plasma HE4 was detected by chemiluminescent immunoassay. The diagnostic efficacy of miR-127-3p alone, HE4 alone and combined detection of miR-127-3p and HE4 in BC women patients was evaluated by ROC curve analysis. RESULTS The relative expression quantity (RQ) of plasma miR-127-3p and HE4 in BC patients was 13.561 (3.345∼18.281) pmol/L and 105.42 (40.28∼156.31) pmol/L. The RQ of plasma miR-127-3p in BC patients was significantly higher than that in benign breast tumor patients and healthy individuals (both P< 0.001), and there was no significant difference between benign breast tumor patients and healthy individuals (P> 0.05). There was no significant correlation between plasma miR-127-3p and HE4 levels (r2= 0.086, P= 0.471). ROC curve analysis on the diagnostic efficacy of plasma miR-127-3p and HE4 in BC diagnosis showed that the cut-off value of miR-127-3p and HE4 in BC diagnosis was 3.471 and 63.21 pmol/L; AUC was 0.767 and 0.670; sensitivity was 78.2% and 64.6%; specificity was 79.1% and 69.3%; accuracy was 73.2% and 65.1%, respectively. Prediction probability (P) obtained from the miR-127-3p and HE4 model established by logistic regression was P= 1/ [1 + exp (-0.142miR-127-3p-0.024HE4 + 2.875)]. AUC calculated from ROC was 0.825 and the sensitivity was increased to 87.4%. CONCLUSION Combined detection of plasma miR-127-3p and HE4 greatly improved the sensitivity of BC diagnosis and may prove to be a candidate biomarker for early detection and diagnosis of BC.
Collapse
|
30
|
Bastos EP, Brentani H, Pereira CAB, Polpo A, Lima L, Puga RD, Pasini FS, Osorio CABT, Roela RA, Achatz MI, Trapé AP, Gonzalez-Angulo AM, Brentani MM. A Set of miRNAs, Their Gene and Protein Targets and Stromal Genes Distinguish Early from Late Onset ER Positive Breast Cancer. PLoS One 2016; 11:e0154325. [PMID: 27152840 PMCID: PMC4859528 DOI: 10.1371/journal.pone.0154325] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 04/12/2016] [Indexed: 01/16/2023] Open
Abstract
UNLABELLED Breast cancer (BC) in young adult patients (YA) has a more aggressive biological behavior and is associated with a worse prognosis than BC arising in middle aged patients (MA). We proposed that differentially expressed miRNAs could regulate genes and proteins underlying aggressive phenotypes of breast tumors in YA patients when compared to those arising in MA patients. OBJECTIVE Using integrated expression analyses of miRs, their mRNA and protein targets and stromal gene expression, we aimed to identify differentially expressed profiles between tumors from YA-BC and MA-BC. METHODOLOGY AND RESULTS Samples of ER+ invasive ductal breast carcinomas, divided into two groups: YA-BC (35 years or less) or MA-BC (50-65 years) were evaluated. Screening for BRCA1/2 status according to the BOADICEA program indicated low risk of patients being carriers of these mutations. Aggressive characteristics were more evident in YA-BC versus MA-BC. Performing qPCR, we identified eight miRs differentially expressed (miR-9, 18b, 33b, 106a, 106b, 210, 518a-3p and miR-372) between YA-BC and MA-BC tumors with high confidence statement, which were associated with aggressive clinicopathological characteristics. The expression profiles by microarray identified 602 predicted target genes associated to proliferation, cell cycle and development biological functions. Performing RPPA, 24 target proteins differed between both groups and 21 were interconnected within a network protein-protein interactions associated with proliferation, development and metabolism pathways over represented in YA-BC. Combination of eight mRNA targets or the combination of eight target proteins defined indicators able to classify individual samples into YA-BC or MA-BC groups. Fibroblast-enriched stroma expression profile analysis resulted in 308 stromal genes differentially expressed between YA-BC and MA-BC. CONCLUSION We defined a set of differentially expressed miRNAs, their mRNAs and protein targets and stromal genes that distinguish early onset from late onset ER positive breast cancers which may be involved with tumor aggressiveness of YA-BC.
Collapse
Affiliation(s)
- E. P. Bastos
- Oncology and Radiology Department, Laboratory of Medical Investigation 24 (LIM 24), University of Sao Paulo, Medical School, São Paulo, Brazil
| | - H. Brentani
- Laboratory of Medical Investigation 23 (LIM 23), Institute and Department of Psychiatry, University of Sao Paulo, Medical School, São Paulo, Brazil
| | - C. A. B. Pereira
- Mathematics and Statistic Institute, University of Sao Paulo, São Paulo, Brazil
| | - A. Polpo
- Department of Statistics, Federal University of Sao Carlos, São Paulo, Brazil
| | - L. Lima
- Laboratory of Medical Investigation 23 (LIM 23), Institute and Department of Psychiatry, University of Sao Paulo, Medical School, São Paulo, Brazil
| | | | - F. S. Pasini
- Oncology and Radiology Department, Laboratory of Medical Investigation 24 (LIM 24), University of Sao Paulo, Medical School, São Paulo, Brazil
| | - C. A. B. T. Osorio
- Department of Pathology of A.C. Camargo Cancer Center, São Paulo, Brazil
| | - R. A. Roela
- Oncology and Radiology Department, Laboratory of Medical Investigation 24 (LIM 24), University of Sao Paulo, Medical School, São Paulo, Brazil
| | - M. I. Achatz
- Department of Oncogenetics of A.C. Camargo Cancer Center, São Paulo, Brazil
| | - A. P. Trapé
- Department of Breast Medical Oncology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, United States of America
| | - A. M. Gonzalez-Angulo
- Department of Breast Medical Oncology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, United States of America
| | - M. M. Brentani
- Oncology and Radiology Department, Laboratory of Medical Investigation 24 (LIM 24), University of Sao Paulo, Medical School, São Paulo, Brazil
| |
Collapse
|
31
|
Identification of 42 Genes Linked to Stage II Colorectal Cancer Metastatic Relapse. Int J Mol Sci 2016; 17:ijms17050598. [PMID: 27136531 PMCID: PMC4881437 DOI: 10.3390/ijms17050598] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 04/11/2016] [Accepted: 04/12/2016] [Indexed: 12/19/2022] Open
Abstract
Colorectal cancer (CRC) is one of the leading causes of cancer mortality. Metastasis remains the primary cause of CRC death. Predicting the possibility of metastatic relapse in early-stage CRC is of paramount importance to target therapy for patients who really need it and spare those with low-potential of metastasis. Ninety-six stage II CRC cases were stratified using high-resolution array comparative genomic hybridization (aCGH) data based on a predictive survival algorithm and supervised clustering. All genes included within the resultant copy number aberrations were each interrogated independently at mRNA level using CRC expression datasets available from public repositories, which included 1820 colon cancers, and 167 normal colon tissues. Reduced mRNA expression driven by copy number losses and increased expression driven by copy number gains revealed 42 altered transcripts (29 reduced and 13 increased transcripts) associated with metastatic relapse, short disease-free or overall survival, and/or epithelial to mesenchymal transition (EMT). Resultant genes were classified based on gene ontology (GO), which identified four functional enrichment groups involved in growth regulation, genomic integrity, metabolism, and signal transduction pathways. The identified 42 genes may be useful for predicting metastatic relapse in stage II CRC. Further studies are necessary to validate these findings.
Collapse
|
32
|
Reconstruction of temporal activity of microRNAs from gene expression data in breast cancer cell line. BMC Genomics 2015; 16:1077. [PMID: 26763900 PMCID: PMC4712512 DOI: 10.1186/s12864-015-2260-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 11/30/2015] [Indexed: 12/20/2022] Open
Abstract
Background MicroRNAs (miRNAs) are small non-coding RNAs that regulate genes at the post-transcriptional level in spatiotemporal manner. Several miRNAs are identified as prognostic and diagnostic markers in many human cancers. Estimation of the temporal activities of the miRNAs is an important step in the way to understand the complex interactions of these important regulatory elements with transcription factors (TFs) and target genes (TGs). However, current research on miRNA activities excludes network dynamics from the studies, disregarding the important element of time in the regulatory network analysis. Results In the current study, we combined experimentally verified miRNA-TG interactions with breast cancer microarray TG expression data to identify key miRNAs and compute their temporal activity using network component analysis (NCA). The computed activities showed that miRNAs were regulated in a time dependent manner. Our results allowed constructing a synergistic network of miRNAs using the computed miRNA activities and their shared regulation of TGs. We further extended this network by incorporating miRNA-TG, miRNA-TF, TF-miRNA and TF-TG regulations in the context of breast cancer. Our integrated network identified several miRNAs known to be involved in breast cancer regulation and revealed several novel miRNAs. Our further analysis detected substantial involvement of the miRNAs miR-324, miR-93, miR-615 and miR-1 in breast cancer, which was not known previously. Next, combining our integrated networks with functional annotation of differentially expressed genes resulted in new sub-networks. These sub-networks allowed us to identify the key miRNAs and their interactions with TFs and TGs of several biological processes involved in breast cancer. The identified markers are validated for their potential as prognostic markers for breast cancer through survival analysis. Conclusions Our dynamical analysis of the miRNA interactions greatly helps to discover new network based markers, and is highly applicable (but not limited) to cancer research. Electronic supplementary material The online version of this article (doi:10.1186/s12864-015-2260-3) contains supplementary material, which is available to authorized users.
Collapse
|
33
|
Yan M, Shield-Artin K, Byrne D, Deb S, Waddell N, Haviv I, Fox SB. Comparative microRNA profiling of sporadic and BRCA1 associated basal-like breast cancers. BMC Cancer 2015; 15:506. [PMID: 26152113 PMCID: PMC4494690 DOI: 10.1186/s12885-015-1522-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 06/26/2015] [Indexed: 01/29/2023] Open
Abstract
Background While a number of studies have examined miRNA profiles across the molecular subtypes of breast cancer, it is unclear whether BRCA1 basal-like cancers have a specific miRNA profile. This study aims to compare grade independent miRNA expression in luminal cancers, sporadic and BRCA1 basal-type breast cancers. It also aims to ascertain an immunohistochemical profile regulated by BRCA1 specific miRNAs for potential diagnostic use. Methods miRNA expression was assessed in 11 BRCA1 basal, 16 sporadic basal, 17 luminal grade 3 cancers via microarrays. The expression of Cyclin D1, FOXP1, FIH-1, pan-ERβ, NRP1 and CD99, predicted to be regulated by BRCA1 specific miRNAs by computer prediction algorithms, was assessed via immunohistochemistry in a cohort of 35 BRCA1 and 52 sporadic basal-like cancers. Assessment of cyclin D1, FOXP1, NRP1 and CD99 expression was repeated on a validation cohort of 82 BRCA1 and 65 sporadic basal-like breast cancers. Results Unsupervised clustering of basal cancers resulted in a “sporadic” cluster of 11 cancers, and a “BRCA1” cluster of 16 cancers, including a subgroup composed entirely of 10 BRCA1 cancers. Compared with sporadic basal cancers, BRCA1 cancers showed reduced positivity for proteins predicted to be regulated by miRNAs: FOXP1 (6/20[30 %] vs. 37/49[76 %], p < 0.001), cyclin D1 (8/22[36 %] vs. 30/46[65 %], p = 0.025), NRP1 (2/20[10 %] vs. 23/46[50 %], p = 0.002). This was confirmed in the validation cohort (all p < 0.001). Negative staining for 2 or more out of FOXP1, cyclin D1 and NRP1 predicts germline BRCA1 mutation with a sensitivity of 92 %, specificity of 44 %, positive predictive value of 38 % and a negative predictive value of 94 %. Conclusion Sporadic and BRCA1 basal-like cancers have grade independent miRNA expression profiles. Furthermore miRNA driven differences in the expression of proteins in BRCA1 basal cancers may be detected via immunohistochemistry. These findings may have important diagnostic implications, as immunohistochemical assessment of basal cancers, in addition to the patient’s family and clinical history, may potentially identify patients who may benefit from BRCA1 gene testing. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1522-4) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Max Yan
- Department of Anatomical Pathology, Prince of Wales Hospital, School of Medical Sciences, University of New South Wales, Randwick, 2031, Australia.
| | | | - David Byrne
- Department of Pathology, Peter MacCallum Cancer Centre, East Melbourne, 3002, Australia.
| | - Siddhartha Deb
- Department of Pathology, Peter MacCallum Cancer Centre, East Melbourne, 3002, Australia.
| | - Nic Waddell
- Queensland Centre for Medical Genomics, Institute for Molecular Bioscience, University of Queensland, St Lucia, Australia.
| | | | - Izhak Haviv
- Baker IDI Heart and Diabetes Institute, Prahran, 3004, Australia.
| | - Stephen B Fox
- Department of Pathology, Peter MacCallum Cancer Centre, East Melbourne, 3002, Australia.
| |
Collapse
|
34
|
Stegeman S, Amankwah E, Klein K, O'Mara TA, Kim D, Lin HY, Permuth-Wey J, Sellers TA, Srinivasan S, Eeles R, Easton D, Kote-Jarai Z, Amin Al Olama A, Benlloch S, Muir K, Giles GG, Wiklund F, Gronberg H, Haiman CA, Schleutker J, Nordestgaard BG, Travis RC, Neal D, Pharoah P, Khaw KT, Stanford JL, Blot WJ, Thibodeau S, Maier C, Kibel AS, Cybulski C, Cannon-Albright L, Brenner H, Kaneva R, Teixeira MR, Spurdle AB, Clements JA, Park JY, Batra J. A Large-Scale Analysis of Genetic Variants within Putative miRNA Binding Sites in Prostate Cancer. Cancer Discov 2015; 5:368-79. [PMID: 25691096 PMCID: PMC4390388 DOI: 10.1158/2159-8290.cd-14-1057] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Accepted: 02/02/2015] [Indexed: 02/02/2023]
Abstract
UNLABELLED Prostate cancer is the second most common malignancy among men worldwide. Genome-wide association studies have identified 100 risk variants for prostate cancer, which can explain approximately 33% of the familial risk of the disease. We hypothesized that a comprehensive analysis of genetic variations found within the 3' untranslated region of genes predicted to affect miRNA binding (miRSNP) can identify additional prostate cancer risk variants. We investigated the association between 2,169 miRSNPs and prostate cancer risk in a large-scale analysis of 22,301 cases and 22,320 controls of European ancestry from 23 participating studies. Twenty-two miRSNPs were associated (P<2.3×10(-5)) with risk of prostate cancer, 10 of which were within 7 genes previously not mapped by GWAS studies. Further, using miRNA mimics and reporter gene assays, we showed that miR-3162-5p has specific affinity for the KLK3 rs1058205 miRSNP T-allele, whereas miR-370 has greater affinity for the VAMP8 rs1010 miRSNP A-allele, validating their functional role. SIGNIFICANCE Findings from this large association study suggest that a focus on miRSNPs, including functional evaluation, can identify candidate risk loci below currently accepted statistical levels of genome-wide significance. Studies of miRNAs and their interactions with SNPs could provide further insights into the mechanisms of prostate cancer risk.
Collapse
Affiliation(s)
- Shane Stegeman
- Australian Prostate Cancer Research Centre-Qld, Institute of Health and Biomedical Innovation and School of Biomedical Sciences, Translational Research Institute, Queensland University of Technology, Brisbane, Australia
| | - Ernest Amankwah
- Department of Cancer Epidemiology, Moffitt Cancer Center, Tampa, Florida
| | - Kerenaftali Klein
- Statistics Unit, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Tracy A O'Mara
- Molecular Cancer Epidemiology Laboratory, Genetics and Computational Biology Division, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Donghwa Kim
- Department of Molecular Oncology, Moffitt Cancer Center, Tampa, Florida
| | - Hui-Yi Lin
- Department of Biostatistics and Bioinformatics, Moffitt Cancer Center, Tampa, Florida
| | | | - Thomas A Sellers
- Department of Cancer Epidemiology, Moffitt Cancer Center, Tampa, Florida
| | - Srilakshmi Srinivasan
- Australian Prostate Cancer Research Centre-Qld, Institute of Health and Biomedical Innovation and School of Biomedical Sciences, Translational Research Institute, Queensland University of Technology, Brisbane, Australia
| | - Rosalind Eeles
- The Institute of Cancer Research, London, United Kingdom. Royal Marsden NHS Foundation Trust, Fulham and Sutton, London and Surrey, United Kingdom
| | - Doug Easton
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Strangeways Laboratory, Cambridge, United Kingdom
| | | | - Ali Amin Al Olama
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Strangeways Laboratory, Cambridge, United Kingdom
| | - Sara Benlloch
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Strangeways Laboratory, Cambridge, United Kingdom
| | | | - Graham G Giles
- Cancer Epidemiology Centre, Cancer Council Victoria, Melbourne, Victoria, Australia. Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Victoria, Australia
| | - Fredrik Wiklund
- Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden
| | - Henrik Gronberg
- Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden
| | - Christopher A Haiman
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California/Norris Comprehensive Cancer Center, Los Angeles, California
| | - Johanna Schleutker
- Department of Medical Biochemistry and Genetics, University of Turku, Turku, Finland. Institute of Biomedical Technology/BioMediTech, University of Tampere and FimLab Laboratories, Tampere, Finland
| | - Børge G Nordestgaard
- Department of Clinical Biochemistry, Herlev Hospital, Copenhagen University Hospital, Herlev, Denmark
| | - Ruth C Travis
- Cancer Epidemiology Unit, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom
| | - David Neal
- Surgical Oncology (Uro-Oncology: S4), University of Cambridge, Addenbrooke's Hospital, Cambridge; Cancer Research UK, Cambridge Research Institute, Cambridge, United Kingdom
| | - Paul Pharoah
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Strangeways Laboratory, Cambridge, United Kingdom
| | - Kay-Tee Khaw
- Cambridge Institute of Public Health, University of Cambridge, Cambridge, United Kingdom
| | - Janet L Stanford
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington. Department of Epidemiology, School of Public Health, University of Washington, Seattle, Washington
| | - William J Blot
- International Epidemiology Institute, Rockville, Maryland
| | | | - Christiane Maier
- Department of Urology, University Hospital Ulm, Ulm, Germany. Institute of Human Genetics, University Hospital Ulm, Ulm, Germany
| | - Adam S Kibel
- Brigham and Women's Hospital/Dana-Farber Cancer Institute, Boston, Massachusetts. Washington University, St. Louis, Missouri
| | - Cezary Cybulski
- International Hereditary Cancer Center, Department of Genetics and Pathology, Pomeranian Medical University, Szczecin, Poland
| | - Lisa Cannon-Albright
- Division of Genetic Epidemiology, Department of Medicine, University of Utah School of Medicine, Salt Lake City, Utah
| | - Hermann Brenner
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany. German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Radka Kaneva
- Molecular Medicine Center and Department of Medical Chemistry and Biochemistry, Medical University-Sofia, Sofia, Bulgaria
| | - Manuel R Teixeira
- Department of Genetics, Portuguese Oncology Institute, Porto; Biomedical Sciences Institute (ICBAS), Porto University, Porto, Portugal
| | - Amanda B Spurdle
- Molecular Cancer Epidemiology Laboratory, Genetics and Computational Biology Division, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Judith A Clements
- Australian Prostate Cancer Research Centre-Qld, Institute of Health and Biomedical Innovation and School of Biomedical Sciences, Translational Research Institute, Queensland University of Technology, Brisbane, Australia
| | - Jong Y Park
- Department of Cancer Epidemiology, Moffitt Cancer Center, Tampa, Florida
| | - Jyotsna Batra
- Australian Prostate Cancer Research Centre-Qld, Institute of Health and Biomedical Innovation and School of Biomedical Sciences, Translational Research Institute, Queensland University of Technology, Brisbane, Australia.
| |
Collapse
|
35
|
Stegeman S, Moya L, Selth LA, Spurdle AB, Clements JA, Batra J. A genetic variant of MDM4 influences regulation by multiple microRNAs in prostate cancer. Endocr Relat Cancer 2015; 22:265-76. [PMID: 25670033 DOI: 10.1530/erc-15-0013] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The oncogene MDM4, also known as MDMX or HDMX, contributes to cancer susceptibility and progression through its capacity to negatively regulate a range of genes with tumour-suppressive functions. As part of a recent genome-wide association study it was determined that the A-allele of the rs4245739 SNP (A>C), located in the 3'-UTR of MDM4, is associated with an increased risk of prostate cancer. Computational predictions revealed that the rs4245739 SNP is located within a predicted binding site for three microRNAs (miRNAs): miR-191-5p, miR-887 and miR-3669. Herein, we show using reporter gene assays and endogenous MDM4 expression analyses that miR-191-5p and miR-887 have a specific affinity for the rs4245739 SNP C-allele in prostate cancer. These miRNAs do not affect MDM4 mRNA levels, rather they inhibit its translation in C-allele-containing PC3 cells but not in LNCaP cells homozygous for the A-allele. By analysing gene expression datasets from patient cohorts, we found that MDM4 is associated with metastasis and prostate cancer progression and that targeting this gene with miR-191-5p or miR-887 decreases in PC3 cell viability. This study is the first, to our knowledge, to demonstrate regulation of the MDM4 rs4245739 SNP C-allele by two miRNAs in prostate cancer, and thereby to identify a mechanism by which the MDM4 rs4245739 SNP A-allele may be associated with an increased risk for prostate cancer.
Collapse
Affiliation(s)
- Shane Stegeman
- School of Biomedical SciencesInstitute of Health and Biomedical Innovation, Translational Research Institute Pty Ltd, Australian Prostate Cancer Research Centre - Queensland, Queensland University of Technology, 37 Kent Street, Woolloongabba, Brisbane, Queensland 4102, AustraliaDame Roma Mitchell Cancer Research LaboratoriesSchool of Medicine, Adelaide Prostate Cancer Research CentreSchool of MedicineFreemasons Foundation Centre for Men's Health, The University of Adelaide, Adelaide, South Australia 5005, AustraliaMolecular Cancer Epidemiology LaboratoryGenetics and Computational Biology Division, QIMR Berghofer Medical Research Institute, Brisbane, Queensland 4006, Australia
| | - Leire Moya
- School of Biomedical SciencesInstitute of Health and Biomedical Innovation, Translational Research Institute Pty Ltd, Australian Prostate Cancer Research Centre - Queensland, Queensland University of Technology, 37 Kent Street, Woolloongabba, Brisbane, Queensland 4102, AustraliaDame Roma Mitchell Cancer Research LaboratoriesSchool of Medicine, Adelaide Prostate Cancer Research CentreSchool of MedicineFreemasons Foundation Centre for Men's Health, The University of Adelaide, Adelaide, South Australia 5005, AustraliaMolecular Cancer Epidemiology LaboratoryGenetics and Computational Biology Division, QIMR Berghofer Medical Research Institute, Brisbane, Queensland 4006, Australia
| | - Luke A Selth
- School of Biomedical SciencesInstitute of Health and Biomedical Innovation, Translational Research Institute Pty Ltd, Australian Prostate Cancer Research Centre - Queensland, Queensland University of Technology, 37 Kent Street, Woolloongabba, Brisbane, Queensland 4102, AustraliaDame Roma Mitchell Cancer Research LaboratoriesSchool of Medicine, Adelaide Prostate Cancer Research CentreSchool of MedicineFreemasons Foundation Centre for Men's Health, The University of Adelaide, Adelaide, South Australia 5005, AustraliaMolecular Cancer Epidemiology LaboratoryGenetics and Computational Biology Division, QIMR Berghofer Medical Research Institute, Brisbane, Queensland 4006, Australia School of Biomedical SciencesInstitute of Health and Biomedical Innovation, Translational Research Institute Pty Ltd, Australian Prostate Cancer Research Centre - Queensland, Queensland University of Technology, 37 Kent Street, Woolloongabba, Brisbane, Queensland 4102, AustraliaDame Roma Mitchell Cancer Research LaboratoriesSchool of Medicine, Adelaide Prostate Cancer Research CentreSchool of MedicineFreemasons Foundation Centre for Men's Health, The University of Adelaide, Adelaide, South Australia 5005, AustraliaMolecular Cancer Epidemiology LaboratoryGenetics and Computational Biology Division, QIMR Berghofer Medical Research Institute, Brisbane, Queensland 4006, Australia
| | - Amanda B Spurdle
- School of Biomedical SciencesInstitute of Health and Biomedical Innovation, Translational Research Institute Pty Ltd, Australian Prostate Cancer Research Centre - Queensland, Queensland University of Technology, 37 Kent Street, Woolloongabba, Brisbane, Queensland 4102, AustraliaDame Roma Mitchell Cancer Research LaboratoriesSchool of Medicine, Adelaide Prostate Cancer Research CentreSchool of MedicineFreemasons Foundation Centre for Men's Health, The University of Adelaide, Adelaide, South Australia 5005, AustraliaMolecular Cancer Epidemiology LaboratoryGenetics and Computational Biology Division, QIMR Berghofer Medical Research Institute, Brisbane, Queensland 4006, Australia
| | - Judith A Clements
- School of Biomedical SciencesInstitute of Health and Biomedical Innovation, Translational Research Institute Pty Ltd, Australian Prostate Cancer Research Centre - Queensland, Queensland University of Technology, 37 Kent Street, Woolloongabba, Brisbane, Queensland 4102, AustraliaDame Roma Mitchell Cancer Research LaboratoriesSchool of Medicine, Adelaide Prostate Cancer Research CentreSchool of MedicineFreemasons Foundation Centre for Men's Health, The University of Adelaide, Adelaide, South Australia 5005, AustraliaMolecular Cancer Epidemiology LaboratoryGenetics and Computational Biology Division, QIMR Berghofer Medical Research Institute, Brisbane, Queensland 4006, Australia
| | - Jyotsna Batra
- School of Biomedical SciencesInstitute of Health and Biomedical Innovation, Translational Research Institute Pty Ltd, Australian Prostate Cancer Research Centre - Queensland, Queensland University of Technology, 37 Kent Street, Woolloongabba, Brisbane, Queensland 4102, AustraliaDame Roma Mitchell Cancer Research LaboratoriesSchool of Medicine, Adelaide Prostate Cancer Research CentreSchool of MedicineFreemasons Foundation Centre for Men's Health, The University of Adelaide, Adelaide, South Australia 5005, AustraliaMolecular Cancer Epidemiology LaboratoryGenetics and Computational Biology Division, QIMR Berghofer Medical Research Institute, Brisbane, Queensland 4006, Australia
| |
Collapse
|
36
|
Cigarette smoking hinders human periodontal ligament-derived stem cell proliferation, migration and differentiation potentials. Sci Rep 2015; 5:7828. [PMID: 25591783 PMCID: PMC5379007 DOI: 10.1038/srep07828] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Accepted: 12/15/2014] [Indexed: 12/16/2022] Open
Abstract
Cigarette smoking contributes to the development of destructive periodontal diseases and delays its healing process. Our previous study demonstrated that nicotine, a major constituent in the cigarette smoke, inhibits the regenerative potentials of human periodontal ligament-derived stem cells (PDLSC) through microRNA (miRNA) regulation. In this study, we hypothesized that the delayed healing in cigarette smokers is caused by the afflicted regenerative potential of smoker PDLSC. We cultured PDLSC from teeth extracted from smokers and non-smokers. In smoker PDLSC, we found significantly reduced proliferation rate and retarded migration capabilities. Moreover, alkaline phosphatase activity, calcium deposition and acidic polysaccharide staining were reduced after BMP2-induced differentiation. In contrast, more lipid deposition was observed in adipogenic-induced smoker PDLSC. Furthermore, two nicotine-related miRNAs, hsa-miR-1305 (22.08 folds, p = 0.040) and hsa-miR-18b (15.56 folds, p = 0.018), were significantly upregulated in smoker PDLSC, suggesting these miRNAs might play an important role in the deteriorative effects on stem cells by cigarette smoke. Results of this study provide further evidences that cigarette smoking affects the regenerative potentials of human adult stem cells.
Collapse
|
37
|
Lenkala D, LaCroix B, Gamazon ER, Geeleher P, Im HK, Huang RS. The impact of microRNA expression on cellular proliferation. Hum Genet 2014; 133:931-8. [PMID: 24609542 PMCID: PMC4677487 DOI: 10.1007/s00439-014-1434-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 02/24/2014] [Indexed: 12/12/2022]
Abstract
As an important class of non-coding regulatory RNAs, microRNAs (miRNAs) play a key role in a range of biological processes. These molecules serve as post-transcriptional regulators of gene expression and their regulatory activity has been implicated in disease pathophysiology and pharmacological traits. We sought to investigate the impact of miRNAs on cellular proliferation to gain insight into the molecular basis of complex traits that depend on cellular growth, including, most prominently, cancer. We examined the relationship between miRNA expression and intrinsic cellular growth (iGrowth) in the HapMap lymphoblastoid cell lines derived from individuals of different ethnic backgrounds. We found a substantial enrichment for miRNAs (53 miRNAs, FDR < 0.05) correlated with cellular proliferation in pooled CEU (Caucasian of northern and western European descent) and YRI (individuals from Ibadan, Nigeria) samples. Specifically, 119 miRNAs (59 %) were significantly correlated with iGrowth in YRI; of these miRNAs, 18 were correlated with iGrowth in CEU. To gain further insight into the effect of miRNAs on cellular proliferation in cancer, we showed that over-expression of miR-22, one of the top iGrowth-associated miRNAs, leads to growth inhibition in an ovarian cancer cell line (SKOV3). Furthermore, over-expression of miR-22 down-regulates the expression of its target genes (MXI1 and SLC25A37) in this ovarian cancer cell line, highlighting an miRNA-mediated regulatory network potentially important for cellular proliferation. Importantly, our study identified miRNAs that can be used as molecular targets in cancer therapy.
Collapse
Affiliation(s)
- Divya Lenkala
- Section of Hematology/Oncology, Department of Medicine, The University of Chicago, 900 E 57th Street, KCBD, Chicago, IL 60637, USA
| | - Bonnie LaCroix
- Section of Hematology/Oncology, Department of Medicine, The University of Chicago, 900 E 57th Street, KCBD, Chicago, IL 60637, USA
| | - Eric R. Gamazon
- Section of Genetic Medicine, Department of Medicine, The University of Chicago, Chicago, IL 60637, USA
| | - Paul Geeleher
- Section of Hematology/Oncology, Department of Medicine, The University of Chicago, 900 E 57th Street, KCBD, Chicago, IL 60637, USA
| | - Hae Kyung Im
- Department of Health Studies, The University of Chicago, Chicago, IL 60637, USA
| | - R. Stephanie Huang
- Section of Hematology/Oncology, Department of Medicine, The University of Chicago, 900 E 57th Street, KCBD, Chicago, IL 60637, USA
| |
Collapse
|
38
|
Li L, Diao W, Zen K. Micro-ribonucleic acids: potential noninvasive biomarkers for hepatocellular carcinoma. J Hepatocell Carcinoma 2014; 1:21-33. [PMID: 27508173 PMCID: PMC4918264 DOI: 10.2147/jhc.s44463] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most common malignancies globally. Each year, more than 500,000 people worldwide are diagnosed with HCC. The onset of HCC is typically unnoticeable, and the prognosis is usually poor. The early diagnosis of HCC and dynamic monitoring of this disease can contribute to more effective therapeutic interventions and improve patient outcomes. To achieve early diagnosis, more sensitive, specific, and easily detectable biomarkers are necessary. Recently, scientists have focused on identifying novel, sensitive, and minimally invasive or noninvasive biomarkers. Micro-ribonucleic acids (miRNAs) are a class of endogenous noncoding single-stranded RNAs that regulate gene expression at the posttranscriptional level. By negatively regulating target-gene expression, miRNAs play a critical role in diverse biological processes, including apoptosis, proliferation, differentiation, and developmental timing. Unique changes in miRNA expression in serum or plasma samples from HCC patients have been reported, suggesting that miRNAs may serve as novel noninvasive biomarkers for diagnosing HCC and evaluating therapeutic responses or as potential therapeutic targets in HCC. This review focuses on recent progress in understanding the role of miRNAs in HCC pathogenesis and progression, and highlights their diagnostic and prognostic value for HCC patients.
Collapse
Affiliation(s)
- Limin Li
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, People's Republic of China
| | - Wenli Diao
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, People's Republic of China
| | - Ke Zen
- Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, People's Republic of China
| |
Collapse
|
39
|
Ma F, Zhang J, Zhong L, Wang L, Liu Y, Wang Y, Peng L, Guo B. Upregulated microRNA-301a in breast cancer promotes tumor metastasis by targeting PTEN and activating Wnt/β-catenin signaling. Gene 2014; 535:191-7. [PMID: 24315818 DOI: 10.1016/j.gene.2013.11.035] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Accepted: 11/14/2013] [Indexed: 12/18/2022]
Abstract
MicroRNAs (miRNAs) are strongly implicated in many cancers, including breast cancer. Recently, microRNA-301a (miR-301a) has been proved to play a substantial role in gastric cancer, but its functions in the context of breast cancer remain unknown. Here we report that miR-301a was markedly upregulated in primary tumor samples from patients with distant metastases and pro-metastatic breast cancer cell lines. Gain-of-function and loss-of-function studies showed that ectopic overexpression of miR-301a promoted breast cancer cell migration, invasion and metastasis both in vitro and in vivo. Notably, Wnt/β-catenin signaling was hyperactivated in metastatic breast cancer cells that express miR-301a, and mediated miR-301a-induced invasion and metastasis. Furthermore, miR-301a directly targeted and suppressed PTEN, one negative regulator of the Wnt/β-catenin signaling cascade. These results demonstrate that miR-301a maintains constitutively activated Wnt/β-catenin signaling by directly targeting PTEN, which promotes breast cancer invasion and metastasis. Taken together, our findings reveal a new regulatory mechanism of miR-301a and suggest that miR-301a might be a potential target in breast cancer therapy.
Collapse
Affiliation(s)
- Fei Ma
- Department of General Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jianguo Zhang
- Department of General Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Lei Zhong
- Department of General Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Lei Wang
- Department of General Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yansong Liu
- Department of General Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yimin Wang
- Department of General Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Lin Peng
- Department of General Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Baoliang Guo
- Department of General Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, China.
| |
Collapse
|