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Liu L, Han Q, Cai J, Xiao M, Huang D, Cao J. The clinical validity of miR-126 as a prognostic marker in epithelial ovarian cancer. Medicine (Baltimore) 2023; 102:e33085. [PMID: 36862865 PMCID: PMC9981431 DOI: 10.1097/md.0000000000033085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/04/2023] Open
Abstract
BACKGROUND Ovarian cancer is the leading cause of gynecological cancer related death in females worldwide. Our previous study demonstrated that decreased expression of microRNA (miR-126) promoted ovarian cancer angiogenesis and invasion by targeting VEGF-A. This study aimed to evaluate the clinical validity of miR-126 as a prognostic marker for epithelial ovarian cancer (EOC). PATIENT CONCERNS The patients with EOC ranged in age from 27 to 79 years, with a mean age of 57 years. DIAGNOSIS All patients had never had chemotherapy or biotherapy, and the diagnoses were confirmed pathologically in all cases. METHODS MiR-126 levels in EOC tissue and normal ovaries were determined by qRT-PCR. Its prognostic value was analyzed using the Cox proportional hazards regression model. Survival curves were drawn using the Kaplan-Meier method. RESULTS In this study, we found that compared to normal tissues, miR-126 expression was lower in EOC tissues, particularly in omental metastases. Though in our previous study we found that miR-126 may inhibit proliferation and invasion in EOC cell lines, but in this study patients with elevated miR-126 expression exhibited poor overall survival and relapse free survival. Multivariate Cox regression analysis showed that miRNA-126 was an independent prognostic factor for poor relapse-free survival (P = .044). Receiver operating characteristic analysis showed that the area under the curve of miR-126 was 0.806 (95% confidence interval, 0.669-0.942). CONCLUSION In this study, we established miR-126 as a potential independent biomarker for predicting recurrence in patients with EOC.
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Affiliation(s)
- Lin Liu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qing Han
- The First College of Clinical Medical Science, China Three Gorges University, Yichang, Hubei, China
| | - Jing Cai
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Man Xiao
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Da Huang
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jin Cao
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- * Correspondence: Jin Cao, Department of Gynecology and Obstetrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, Hubei Province, 430022, P. R. China(e-mail: )
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Nguyen LXT, Zhang B, Hoang DH, Zhao D, Wang H, Wu H, Su YL, Dong H, Rodriguez-Rodriguez S, Armstrong B, Ghoda LY, Perrotti D, Pichiorri F, Chen J, Li L, Kortylewski M, Rockne RC, Kuo YH, Khaled S, Carlesso N, Marcucci G. Cytoplasmic DROSHA and non-canonical mechanisms of MiR-155 biogenesis in FLT3-ITD acute myeloid leukemia. Leukemia 2021; 35:2285-2298. [PMID: 33589748 PMCID: PMC8973317 DOI: 10.1038/s41375-021-01166-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 01/07/2021] [Accepted: 01/26/2021] [Indexed: 01/29/2023]
Abstract
We report here on a novel pro-leukemogenic role of FMS-like tyrosine kinase 3-internal tandem duplication (FLT3-ITD) that interferes with microRNAs (miRNAs) biogenesis in acute myeloid leukemia (AML) blasts. We showed that FLT3-ITD interferes with the canonical biogenesis of intron-hosted miRNAs such as miR-126, by phosphorylating SPRED1 protein and inhibiting the "gatekeeper" Exportin 5 (XPO5)/RAN-GTP complex that regulates the nucleus-to-cytoplasm transport of pre-miRNAs for completion of maturation into mature miRNAs. Of note, despite the blockage of "canonical" miRNA biogenesis, miR-155 remains upregulated in FLT3-ITD+ AML blasts, suggesting activation of alternative mechanisms of miRNA biogenesis that circumvent the XPO5/RAN-GTP blockage. MiR-155, a BIC-155 long noncoding (lnc) RNA-hosted oncogenic miRNA, has previously been implicated in FLT3-ITD+ AML blast hyperproliferation. We showed that FLT3-ITD upregulates miR-155 by inhibiting DDX3X, a protein implicated in the splicing of lncRNAs, via p-AKT. Inhibition of DDX3X increases unspliced BIC-155 that is then shuttled by NXF1 from the nucleus to the cytoplasm, where it is processed into mature miR-155 by cytoplasmic DROSHA, thereby bypassing the XPO5/RAN-GTP blockage via "non-canonical" mechanisms of miRNA biogenesis.
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Affiliation(s)
- Le Xuan Truong Nguyen
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA.
| | - Bin Zhang
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Dinh Hoa Hoang
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Dandan Zhao
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Huafeng Wang
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Herman Wu
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Yu-Lin Su
- Department of Immuno-Oncology, City of Hope Medical Center, Duarte, CA, USA
| | - Haojie Dong
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Sonia Rodriguez-Rodriguez
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Brian Armstrong
- Light Microscopy Core, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Lucy Y Ghoda
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Danilo Perrotti
- Department of Medicine, Biochemistry and Molecular Biology and the Marlene and Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD, USA
| | - Flavia Pichiorri
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Jianjun Chen
- Department of System Biology, City of Hope Medical Center, Duarte, CA, USA
| | - Ling Li
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Marcin Kortylewski
- Department of Immuno-Oncology, City of Hope Medical Center, Duarte, CA, USA
| | - Russell C Rockne
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Ya-Huei Kuo
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Samer Khaled
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Nadia Carlesso
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA
| | - Guido Marcucci
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, CA, USA.
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Issın G, Kucukodacı Z, Yılmaz I, Erkul E, Tural E, Demirel D, Gungor A, Yıldırım S. Evaluation of the mir-126, mir-182, and mir-486-5p Expression Signature of Head and Neck Squamous Cell Carcinomas and Lung Squamous Cell Carcinomas. Turk Patoloji Derg 2021; 37:106-114. [PMID: 33973644 PMCID: PMC10512682 DOI: 10.5146/tjpath.2021.01528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 03/14/2021] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE Although squamous cell carcinomas (SCCs) originating from different anatomic localizations display a similar histological appearance under light microscopy, they may differ in terms of epigenetic and genetic features. The aim of this study was to analyze mir-126, mir-182, and mir-486-5p expression levels in head and neck SCCs and lung SCCs, and to identify localization-specific miRNA expression profiles. MATERIAL AND METHOD The expression levels of mir-126, mir-182, and mir-486-5p were analyzed in lung, oral cavity, laryngeal, and hypopharyngeal SCCs in 40 patients, using quantitative real-time polymerase chain reaction. RESULTS The findings showed that lung, oral cavity, laryngeal, and hypopharyngeal SCCs have distinct mir-126 and mir-486-5p expression profiles. It was also observed that mir-126 and mir-486-5p expression levels were highly specific to the tumor localization. CONCLUSION These findings highlighted that SCCs originating from different anatomic localizations have different miRNA expression profiles. miRNA expression analysis can be used to predict the primary localizations of those SCCs.
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Affiliation(s)
- Gizem Issın
- Department of Pathology, Erzincan Binali Yildirim University, Mengucek Gazi Training and Research Hospital, Erzincan, Turkey
| | - Zafer Kucukodacı
- University of Health Sciences, İstanbul Sultan 2. Abdülhamid Han Training Hospital, Istanbul, Turkey
| | - Ismail Yılmaz
- University of Health Sciences, İstanbul Sultan 2. Abdülhamid Han Training Hospital, Istanbul, Turkey
| | - Evren Erkul
- Department of Otorhinolaryngology, Gulhane Medical School, University of Health Sciences, İstanbul Sultan 2. Abdülhamid Han Training Hospital, Istanbul, Turkey
| | - Ersin Tural
- Department of Pediatrics, University of Health Sciences, İstanbul Sultan 2. Abdülhamid Han Training Hospital, Istanbul, Turkey
| | - Dilaver Demirel
- Department of Pathology, University of Health Sciences, Gaziosmanpasa-Taksim Health Application and Research Center, Istanbul, Turkey
| | - Atila Gungor
- Department of Otorhinolaryngology, Medical Park Goztepe Hospital, Istanbul, Turkey
| | - Sukru Yıldırım
- Department of Pathology, Maltepe University, Faculty of Medicine, Istanbul, Turkey
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Lu G, Wu X, Zhao Z, Ding Y, Wang P, Wu C, Kang X, Pu X. MicroRNA-126 regulates the phosphatidylinositol-3 kinase (PI3K)/protein kinase B (AKT) pathway in SLK cells in vitro and the expression of its pathway members in Kaposi's sarcoma tissue. Medicine (Baltimore) 2018; 97:e11855. [PMID: 30170375 PMCID: PMC6392886 DOI: 10.1097/md.0000000000011855] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
In vitro, microRNA-126 (miR-126) inhibits SLK cell proliferation, inhibits the cell cycle, induces cell apoptosis, and reduces cell invasiveness. Double luciferase assays have shown that phosphatidylinositol-3 kinase (PI3K) is the miR-126 target in SLK cells. We aimed to investigate the influence of miR-126 on the phosphate and tension homology deleted on chromosome ten (PTEN)/PI3K/protein kinase B (AKT) pathway members in SLK cells and to determine the expression of these pathway members in Kaposi's sarcoma (KS). The mimic and inhibitor of miR-126 were transfected into SLK cells and PTEN and AKT1 expression was assayed in SLK cells by real-time quantitative PCR and western blotting. PTEN, AKT1, phosphorylated (P)-PTEN, and phosphorylated (P)-AKT expression in KS and paraneoplastic skin were assayed by immunohistochemistry. AKT1 expression was downregulated in SLK cells that overexpressed miR-126, while there was no significant difference in PTEN expression between SLK cells overexpressing miR-126 and those in which its expression was knocked down. PTEN and AKT1 were expressed in KS and paraneoplastic skin but P-AKT was not. Interestingly, P-PTEN was not expressed in paraneoplastic skin but it was expressed in 90% of KS biopsies (P < .05). P-PTEN expression was also significantly higher in visceral than in cutaneous KS (P = .01) and was higher in indoor than in outdoor workers (P = .018). In vitro, miR-126 negatively regulated AKT1 expression but no regulation of PTEN expression was evident. Results indicated that in KS, PTEN is activated and may therefore be a potential therapeutic target for KS. In addition, these results also indicate that sunlight may not be the cause of KS.
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Affiliation(s)
- Gaihui Lu
- Xinjiang Medical University, Urumqi, Xinjiang, China
- Dermatological Department, Clinical Medical Research Center, People's Hospital of Xinjiang Uyghur Autonomous Region, Urumqi, Xinjiang, China
| | - Xiujuan Wu
- Dermatological Department, Clinical Medical Research Center, People's Hospital of Xinjiang Uyghur Autonomous Region, Urumqi, Xinjiang, China
| | - Zongfeng Zhao
- Dermatological Department, Clinical Medical Research Center, People's Hospital of Xinjiang Uyghur Autonomous Region, Urumqi, Xinjiang, China
| | - Yuan Ding
- Dermatological Department, Clinical Medical Research Center, People's Hospital of Xinjiang Uyghur Autonomous Region, Urumqi, Xinjiang, China
| | - Peng Wang
- Dermatological Department, Clinical Medical Research Center, People's Hospital of Xinjiang Uyghur Autonomous Region, Urumqi, Xinjiang, China
| | - Caoying Wu
- Dermatological Department, Clinical Medical Research Center, People's Hospital of Xinjiang Uyghur Autonomous Region, Urumqi, Xinjiang, China
| | - Xiaojing Kang
- Dermatological Department, Clinical Medical Research Center, People's Hospital of Xinjiang Uyghur Autonomous Region, Urumqi, Xinjiang, China
| | - Xiongming Pu
- Xinjiang Medical University, Urumqi, Xinjiang, China
- Dermatological Department, Clinical Medical Research Center, People's Hospital of Xinjiang Uyghur Autonomous Region, Urumqi, Xinjiang, China
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Pérez-Vázquez MS, Ochoa-Martínez ÁC, RuÍz-Vera T, Araiza-Gamboa Y, Pérez-Maldonado IN. Evaluation of epigenetic alterations ( mir-126 and mir-155 expression levels) in Mexican children exposed to inorganic arsenic via drinking water. Environ Sci Pollut Res Int 2017; 24:28036-28045. [PMID: 28994022 DOI: 10.1007/s11356-017-0367-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 09/27/2017] [Indexed: 06/07/2023]
Abstract
Recently, a great number of epidemiological studies have shown evidence that exposure to inorganic arsenic could have harmful effects on the cardiovascular system of humans. However, the underlying mechanisms through which arsenic induces cardiovascular toxic effects remain unclear. In this regard, epigenetic mechanisms have emerged as a probable connection between environment and disease phenotypes, including cardiovascular diseases. Therefore, this study aimed to evaluate epigenetic changes related to cardiotoxicity (miR-126 and miR-155 expression levels) in children from San Luis Potosi, Mexico exposed to inorganic arsenic. From 2014 to 2015, in a cross-sectional study, children (aged 6-12 years; n = 73) attending public schools at the studied sites were enrolled to take part in this study. Urinary arsenic was used as an exposure biomarker and analyzed by an atomic absorption spectrophotometry technique. On the other hand, miR-126 and miR-155 expression levels were evaluated by qRT-PCR. A mean urinary arsenic level of 30.5 ± 25.5 μg/g of creatinine was found. Moreover, the data showed a significant negative association (p < 0.05) between urinary arsenic concentrations and plasma miR-126 levels. However, an association between urinary arsenic concentrations and plasma miR-155 levels was not found (p > 0.05). In this regard, some investigations have shown an association between diminished plasma miR-126 levels and cardiovascular illnesses. The results found in this study are of concern. However, more similar studies including a larger sample size are necessary in order to clarify the real significance of the data.
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Affiliation(s)
- Mónica S Pérez-Vázquez
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, Avenida Sierra Leona No. 550, Colonia Lomas Segunda Sección, 78210, San Luis Potosi, SLP, Mexico
- Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosi, Mexico
| | - Ángeles C Ochoa-Martínez
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, Avenida Sierra Leona No. 550, Colonia Lomas Segunda Sección, 78210, San Luis Potosi, SLP, Mexico
- Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosi, Mexico
| | - Tania RuÍz-Vera
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, Avenida Sierra Leona No. 550, Colonia Lomas Segunda Sección, 78210, San Luis Potosi, SLP, Mexico
- Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosi, Mexico
| | - Yesenia Araiza-Gamboa
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, Avenida Sierra Leona No. 550, Colonia Lomas Segunda Sección, 78210, San Luis Potosi, SLP, Mexico
- Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosi, Mexico
| | - Iván N Pérez-Maldonado
- Laboratorio de Toxicología Molecular, Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, Avenida Sierra Leona No. 550, Colonia Lomas Segunda Sección, 78210, San Luis Potosi, SLP, Mexico.
- Facultad de Medicina, Universidad Autónoma de San Luis Potosí, San Luis Potosi, Mexico.
- Unidad Académica Multidisciplinaria Zona Media, Universidad Autónoma de San Luis Potosí, Rio-verde, San Luis Potosi, Mexico.
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Sepahi N, Kohan L, Jahromi AR, Daneshbod Y, Hoveidi EN. mir-126 rs4636297 and TGFβRI rs334348 functional gene variants are associated with susceptibility to endometriosis and its severity. Gynecol Endocrinol 2017; 33:429-432. [PMID: 28277133 DOI: 10.1080/09513590.2017.1290064] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
microRNAs (miRNAs) are negative regulators in a variety of cellular processes that occur in endometriosis. Therefore, functional polymorphisms in miRNA and miRNA binding sites may affect gene expression and contribute to susceptibility of endometriosis. In this study, we evaluated the association of two miRNA related polymorphisms, mir-126 rs4636297 and TGFβRI rs334348, with endometriosis risk and its severity. This case-control study was done on 157 endometriosis patients and 252 healthy women as a control group. Tetra amplification refractory mutation system-polymerase chain reaction (tetra-ARMS PCR) was designed to determine the polymorphisms. Our finding showed significant differences in genotype frequency of mir-126 rs4636297 between the groups (χ2 = 6.26, p = 0.044). A significant protection against endometriosis was found for mir-126 rs4636297 in allele (G versus A allele: OR = 0.695, 95% CI = 0.519-0.931, p = 0.015) and genotype (GG versus AA genotype: OR = 0.451, 95%CI = 0.233-0.873, p = 0.018). Significant association was also observed between the A allele and severity of endometriosis (OR = 0.478, 95%CI = 0.297-0.768, p = 0.002). Moreover, we found a significant association between AA genotype with the risk of endometriosis (OR = 0.493, 95%CI = 0.250-0.970, p = 0.041) and its severity (OR = 0.240, 95%CI = 0.065-0.883, p = 0.032) regarding TGFβRI rs334348 polymorphism. These finding suggest that, for the first time, mir-126 rs4636297 and TGFβRI rs334348 polymorphisms may influence individual's susceptibility to endometriosis and its severity.
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Affiliation(s)
- Neda Sepahi
- a Department of Biology , Islamic Azad University, Arsanjan Branch , Arsanjan , Iran
| | - Leila Kohan
- a Department of Biology , Islamic Azad University, Arsanjan Branch , Arsanjan , Iran
- b Young Researchers and Elite Club, Islamic Azad University, Arsanjan Branch , Arsanjan , Iran
| | - Athar Rasekh Jahromi
- c Department of Obstetrics and Gynecology , Jahrom University of Medical Sciences , Jahrom , Iran , and
| | - Yahya Daneshbod
- d Department of Molecular Pathology , Shiraz Molecular Pathology Research Center, Daneshbod Lab , Shiraz , Iran
| | - Elahe Nimi Hoveidi
- a Department of Biology , Islamic Azad University, Arsanjan Branch , Arsanjan , Iran
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Abstract
BACKGROUND Cancer has become a major public concern all over the world and early diagnosis of cancer is of great benefit for treatment and prognosis. Several studies have investigated the association between abnormal circulating microRNA-126 (miR-126) expression and the risk of various cancers, but the results are inconsistent. Therefore, this meta-analysis was carried out to assess the potential diagnostic value of miR-126 for cancer. METHODS Relevant studies were searched from PubMed, Embase, and Web of Science and we calculated the pooled sensitivity, specificity, positive likelihood ratio (PLR), negative likelihood ratio (NLR), diagnostic odds ratio (DOR), and area under the summary receiver operator characteristic curve (AUC) to assess the diagnostic value of miR-126 for cancer detection. RESULTS A total of 745 cancer patients and 749 controls from 11 studies of 7 papers were included in this meta-analysis. The summary estimates revealed that the pooled sensitivity was 68% (95% confidence interval [CI]: 60-75%), the specificity was 76% (95% CI: 65-85%), the PLR was 2.87 (95% CI: 1.96-4.21), the NLR was 0.42 (95% CI: 0.35-0.52), the DOR was 7 (95% CI: 4-11), and the AUC was 0.77 (95%CI: 0.73-0.80). Moreover, the sample type, cancer type, sample size, and quality score might be sources of heterogeneity. CONCLUSION This systematic review and meta-analysis suggests that miR-126 has great potential to be a noninvasive biomarker in the diagnosis of cancer. However, more well-designed studies with larger sample size on the diagnostic value of miR-126 for cancer are needed in the future.
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Affiliation(s)
| | | | | | | | | | - Guoxin Zhang
- Department of Gastroenterology, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu 210029, P. R. China (JY, YZ, XZ, GZ); The First Clinical Medical College, Nanjing Medical University, Nanjing, Jiangsu 210029, P. R. China (JY, YZ, XZ, GZ); Department of Gastroenterology, Huai’an First People's Hospital, Nanjing Medical University, Huai’an, Jiangsu 223300, P. R. China (SM); Department of Gastroenterology, Sir Run Run Hospital, Nanjing, Jiangsu 210000, P. R. China (CY)
- Correspondence: Guoxin Zhang, Department of Gastroenterology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China (e-mail: )
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Sonntag KC, Woo TUW, Krichevsky AM. Converging miRNA functions in diverse brain disorders: a case for miR-124 and miR-126. Exp Neurol 2012; 235:427-35. [PMID: 22178324 PMCID: PMC3335933 DOI: 10.1016/j.expneurol.2011.11.035] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Revised: 10/27/2011] [Accepted: 11/27/2011] [Indexed: 01/16/2023]
Abstract
A growing body of information on the biology of miRNAs has revealed new insight into their roles in normal homeostasis and pathology of disease. miRNAs control all steps of the cellular expression machinery acting through a "single miRNA/multiple targets" or "multiple miRNAs/single target" mechanism. They have profound impact on the regulation of signaling pathways, which govern common and specific functions across different cellular phenotypes. There is increasing evidence that various diseases share similar disturbances in gene expression networks. Since miRNAs have both common and varying effects in different cellular contexts, they might also influence overlapping signaling pathways in different organs and disease entities. Here, we review this concept for two miRNAs highly abundant in the brain, miR-124 and miR-126, and their potential role in diseases of the brain.
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Affiliation(s)
- Kai C. Sonntag
- Department of Psychiatry, Mailman Research Center, McLean Hospital, Belmont, MA 02478
| | - Tsung-Ung W. Woo
- Department of Psychiatry, Mailman Research Center, McLean Hospital, Belmont, MA 02478
- Laboratory of Cellular Neuropathology, Mailman Research Center, McLean Hospital, Belmont, MA 02478
| | - Anna M. Krichevsky
- Center for Neurologic Diseases, Brigham and Women’s Hospital, Boston, MA 02115
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