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1.
J Med Syst ; 46(11): 73, 2022 Oct 03.
Artigo em Inglês | MEDLINE | ID: mdl-36190581

RESUMO

Processing full-length cystoscopy videos is challenging for documentation and research purposes. We therefore designed a surgeon-guided framework to extract short video clips with bladder lesions for more efficient content navigation and extraction. Screenshots of bladder lesions were captured during transurethral resection of bladder tumor, then manually labeled according to case identification, date, lesion location, imaging modality, and pathology. The framework used the screenshot to search for and extract a corresponding 10-seconds video clip. Each video clip included a one-second space holder with a QR barcode informing the video content. The success of the framework was measured by the secondary use of these short clips and the reduction of storage volume required for video materials. From 86 cases, the framework successfully generated 249 video clips from 230 screenshots, with 14 erroneous video clips from 8 screenshots excluded. The HIPPA-compliant barcodes provided information of video contents with a 100% data completeness. A web-based educational gallery was curated with various diagnostic categories and annotated frame sequences. Compared with the unedited videos, the informative short video clips reduced the storage volume by 99.5%. In conclusion, our framework expedites the generation of visual contents with surgeon's instruction for cystoscopy and potential incorporation of video data towards applications including clinical documentation, education, and research.


Assuntos
Cistoscopia , Neoplasias da Bexiga Urinária , Cistoscopia/métodos , Diagnóstico por Imagem , Documentação , Humanos , Bexiga Urinária/diagnóstico por imagem , Bexiga Urinária/patologia , Neoplasias da Bexiga Urinária/diagnóstico por imagem , Neoplasias da Bexiga Urinária/cirurgia
2.
Public Health ; 186: 110-115, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32801093

RESUMO

OBJECTIVE: This study examined the association between changing family relationships (marital relationships and parent-child relationships) and adolescents' mental health in transitional China. It further explored the potential moderating role of living arrangements in the abovementioned associations. STUDY DESIGN: The study design used in the study is a longitudinal study. METHODS: Data were derived from wave 1 (academic year: 2013-2014, grade 7) and wave 2 (academic year: 2014-2015, grade 8) of the China Education Panel Survey (CEPS). We used fixed-effects models in the longitudinal data analysis (N = 7237). RESULTS: Descriptive analysis indicated significant changes in both adolescents' mental health and self-reported family relationships during the transition from grade 7 to grade 8. The fixed-effects models showed that high marital quality and close parent-child relationships improved the mental health of adolescents. Interaction analysis suggested that paternal living arrangements significantly moderated the association between the father-child relationships and adolescents' mental health: effects of the father-child relationships were weaker among those living away from their biological fathers than among those living with their biological fathers. CONCLUSIONS: Family relationships play an important role in shaping Chinese adolescents' psychological status. However, the effect of the father-child relationships varies based on the paternal living arrangements. This finding highlights the importance of considering the context in examining the effects of family relationships on adolescents' well-being.


Assuntos
Relações Familiares , Saúde Mental , Adolescente , Comportamento do Adolescente , Povo Asiático , Criança , China , Características da Família , Relações Pai-Filho , Feminino , Humanos , Estudos Longitudinais , Masculino , Casamento , Modelos Estatísticos , Relações Pais-Filho , Autorrelato , Inquéritos e Questionários
4.
Public Health ; 162: 63-70, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-29975862

RESUMO

OBJECTIVES: Using data from an international collaborative research project on youth resilience in the context of migration, this study aims to investigate how different acculturation patterns (i.e. integration, assimilation, separation and marginalization) influence the mental health of migrant youth, and whether resilience might function as a mediator in the association between acculturation and mental health. STUDY DESIGN: A cross-sectional pilot study conducted in six countries employing a common survey questionnaire. METHODS: The study sample was 194 youths aged 10-17 years (median = 13.6) from six countries (Australia, Canada, China, New Zealand, South Africa, and United Kingdom) and included cross-border and internal migrants. Mental health and well-being was measured by the Warwick-Edinburgh Mental Well-Being Scale (WEMWBS). Resilience was measured by the Child and Youth Resilience Measure-28 (CYRM-28). Acculturation was assessed using the Acculturation, Habits, and Interests Multicultural Scale for Adolescents (AHIMSA). Multivariate regression and path analysis were performed to examine the hypothesized mediation model. RESULTS: Resilience scores correlated strongly with mental health and well-being. Acculturation exerted no significant direct effects on the mental health of migrant youths. Nevertheless, compared to youths who were integration-oriented, assimilation-oriented youths tended to exhibit lower levels of resilience, resulting in poorer mental health. Compared to youths from other countries, migrant youths from China also reported lower levels of resilience, which led to poorer mental health outcome. CONCLUSION: Acculturation plays a significant role in the mental health of migrant youth, with different acculturative orientations exhibiting different influences through the mediation effect of resilience. Fostering resilience and facilitating integration-oriented acculturation are recommended public health strategies for migrant youth.


Assuntos
Aculturação , Saúde Mental/estatística & dados numéricos , Resiliência Psicológica , Migrantes/psicologia , Adolescente , Austrália , Canadá , Criança , China , Estudos Transversais , Feminino , Humanos , Masculino , Nova Zelândia , Projetos Piloto , África do Sul , Inquéritos e Questionários , Migrantes/estatística & dados numéricos , Reino Unido
5.
Mol Psychiatry ; 21(12): 1680-1689, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27725656

RESUMO

Schizophrenia is a devastating neurodevelopmental disorder with a complex genetic etiology. Widespread cortical gray matter loss has been observed in patients and prodromal samples. However, it remains unresolved whether schizophrenia-associated cortical structure variations arise due to disease etiology or secondary to the illness. Here we address this question using a partitioning-based heritability analysis of genome-wide single-nucleotide polymorphism (SNP) and neuroimaging data from 1750 healthy individuals. We find that schizophrenia-associated genetic variants explain a significantly enriched proportion of trait heritability in eight brain phenotypes (false discovery rate=10%). In particular, intracranial volume and left superior frontal gyrus thickness exhibit significant and robust associations with schizophrenia genetic risk under varying SNP selection conditions. Cross-disorder comparison suggests that the neurogenetic architecture of schizophrenia-associated brain regions is, at least in part, shared with other psychiatric disorders. Our study highlights key neuroanatomical correlates of schizophrenia genetic risk in the general population. These may provide fundamental insights into the complex pathophysiology of the illness, and a potential link to neurocognitive deficits shaping the disorder.


Assuntos
Encéfalo/fisiopatologia , Esquizofrenia/genética , Esquizofrenia/fisiopatologia , Adolescente , Adulto , Encéfalo/anatomia & histologia , Feminino , Predisposição Genética para Doença/genética , Estudo de Associação Genômica Ampla , Substância Cinzenta/fisiopatologia , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Polimorfismo de Nucleotídeo Único/genética , Fatores de Risco
7.
Genet Mol Res ; 15(1): 15016781, 2016 Mar 11.
Artigo em Inglês | MEDLINE | ID: mdl-26985945

RESUMO

Target leaf spot is a sorghum leaf disease caused by Bipolaris sorghicola, a species of fungus with a global distribution. In this study, we investigated the process by which B. sorghicola invades cells of barley, onion, Arabidopsis thaliana species, and sorghum. The results showed that within 8 h of coming into contact with host cells, the hyphal ends of B. sorghicola expand and form a uniform infective penetration pegbolt-like structure; a primary infection mycelium can be formed inside host cells within 24 h after contact, which can infect closed cells after 48 h. A mycelium can grow within the gap between cells and form infective hyphae. The pathogen infection process was the same in different host cells. B. sorghicola can affect root cells through soil infection, indicating that it may also have characteristics of soil-borne pathogens.


Assuntos
Ascomicetos/fisiologia , Interações Hospedeiro-Patógeno , Raízes de Plantas/microbiologia , Arabidopsis/microbiologia , Hordeum/microbiologia , Cebolas/microbiologia , Microbiologia do Solo , Sorghum/microbiologia
8.
Mol Psychiatry ; 18(1): 101-11, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21968929

RESUMO

It is increasingly recognized that we need a better understanding of how mental disorders such as depression alter the brain's functional connections to improve both early diagnosis and therapy. A new holistic approach has been used to investigate functional connectivity changes in the brains of patients suffering from major depression using resting-state functional magnetic resonance imaging (fMRI) data. A canonical template of connectivity in 90 different brain regions was constructed from healthy control subjects and this identified a six-community structure with each network corresponding to a different functional system. This template was compared with functional networks derived from fMRI scans of both first-episode and longer-term, drug resistant, patients suffering from severe depression. The greatest change in both groups of depressed patients was uncoupling of the so-called 'hate circuit' involving the superior frontal gyrus, insula and putamen. Other major changes occurred in circuits related to risk and action responses, reward and emotion, attention and memory processing. A voxel-based morphometry analysis was also carried out but this revealed no evidence in the depressed patients for altered gray or white matter densities in the regions showing altered functional connectivity. This is the first evidence for the involvement of the 'hate circuit' in depression and suggests a potential reappraisal of the key neural circuitry involved. We have hypothesized that this may reflect reduced cognitive control over negative feelings toward both self and others.


Assuntos
Mapeamento Encefálico , Encéfalo/patologia , Depressão/patologia , Rede Nervosa/patologia , Adolescente , Adulto , Algoritmos , Encéfalo/irrigação sanguínea , Estudos de Casos e Controles , Redes Comunitárias , Feminino , Humanos , Processamento de Imagem Assistida por Computador , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Rede Nervosa/irrigação sanguínea , Vias Neurais/irrigação sanguínea , Vias Neurais/patologia , Oxigênio/sangue , Escalas de Graduação Psiquiátrica , Adulto Jovem
9.
Genet Mol Res ; 13(3): 5025-35, 2014 Jul 04.
Artigo em Inglês | MEDLINE | ID: mdl-25062491

RESUMO

In Brassicaceae, a self-incompatibility (SI) system mediates pollen-pistil interactions. Self-pollen could be recognized and rejected by incompatible pistils. Several components involved in the SI response have been determined, including S-locus receptor kinase (SRK), S-locus cysteine-rich protein/S-locus protein 11, and arm repeat-containing protein 1 (ARC1). However, the components involved in the SI system of Brassicaceae are not fully understood. Here, we detected expression patterns of 24 SI-related genes in non-heading Chinese cabbage (Brassica campestris ssp chinensis Makino) after compatible and incompatible pollination, and potential interaction relationships of these genes were predicted. SRK and ARC1 transcripts increased initially 0.25 h after incompatible pollination, while kinase-associated protein phosphatase had an expression pattern that was opposite that of SRK transcripts during self-pollination. Plant U-box 8 was not required in the SI response of non-heading Chinese cabbage. Our results showed that the SI signal of non-heading Chinese cabbage could occur within 0.25 h after self-pollination. The hypothetical interaction relationships indicated that plastid-lipid-associated protein and malate dehydrogenase could be negatively regulated by chaperonin 10, glutathione transferase, cytidylate kinase/uridylate kinase, and methionine synthase by indirect interactions. Our findings could be helpful to better understand potential roles of these components in the SI system of non-heading Chinese cabbage.


Assuntos
Brassica/genética , Regulação da Expressão Gênica de Plantas , Glicoproteínas/genética , Proteínas de Plantas/genética , Polinização/genética , Proteínas Quinases/genética , 5-Metiltetra-Hidrofolato-Homocisteína S-Metiltransferase/genética , 5-Metiltetra-Hidrofolato-Homocisteína S-Metiltransferase/metabolismo , Brassica/classificação , Brassica/metabolismo , Chaperonina 10/genética , Chaperonina 10/metabolismo , Flores/genética , Redes Reguladoras de Genes , Glutationa Transferase/genética , Glutationa Transferase/metabolismo , Glicoproteínas/metabolismo , Malato Desidrogenase/genética , Malato Desidrogenase/metabolismo , Metaloendopeptidases/genética , Metaloendopeptidases/metabolismo , Núcleosídeo-Fosfato Quinase/genética , Núcleosídeo-Fosfato Quinase/metabolismo , Fosfoproteínas Fosfatases/genética , Fosfoproteínas Fosfatases/metabolismo , Filogenia , Proteínas de Plantas/metabolismo , Pólen/genética , Proteínas Quinases/metabolismo , RNA Mensageiro/genética , RNA Mensageiro/metabolismo
10.
Genet Mol Res ; 13(3): 6813-9, 2014 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-25177960

RESUMO

We aimed at observing the effects of high thoracic epidural anesthesia (HTEA) on cardiac structure and function, heart rate variability (HRV), and QT interval variation (QTV) in ischemic cardiomyopathy (ICM) patients with chronic heart failure. We divided 30 ICM patients into HTEA (N = 16) and control (N = 14) groups.The control group was treated with medication, and the HTEA group was treated with HTEA and medication for 4 weeks. We measured the changes in the left-ventricular end-diastolic diameter (LVEDd) and left-ventricular ejection fraction (LVEF) before and after treatment by using echocardiography and examined changes in HRV and QTV using ambulatory electrocardiogram. HTEA significantly narrowed the LVEDd, improved LVEF, significantly increased the HRV, and significantly reduced the QTV in the ICM group compared to the control group. HTEA significantly narrowed the ventricular chamber diameter size of ICM patients, enhanced myocardial contractility, increased myocardial electrical stability, and improved the cardiac structure and function.


Assuntos
Anestesia Epidural/métodos , Sistema Nervoso Autônomo/fisiopatologia , Cardiomiopatias/fisiopatologia , Isquemia Miocárdica/fisiopatologia , Adulto , Idoso , Doença Crônica , Ecocardiografia/métodos , Feminino , Coração/fisiopatologia , Insuficiência Cardíaca/fisiopatologia , Frequência Cardíaca , Humanos , Masculino , Pessoa de Meia-Idade , Miocárdio/patologia , Função Ventricular Esquerda
11.
Genet Mol Res ; 12(3): 2779-82, 2013 Aug 02.
Artigo em Inglês | MEDLINE | ID: mdl-23979903

RESUMO

In this study, we characterized 12 novel polymorphic microsatellite loci for Chinese beard eel (Cirrhimuraena chinensis Kaup) from a tetranucleotide microsatellite-enriched library. Loci screened on a sample of 37 individuals from Xiamen wild stocks revealed 8 to 24 alleles per locus, with a mean of 13.83 over all loci. Observed and expected heterozygosities ranged from 0.270 to 0.944 and 0.439 to 0.942, respectively. These efficient genetic markers thus provide useful tools in the study of the population genetics and phylogeography of Chinese beard eel.


Assuntos
Enguias/genética , Repetições de Microssatélites , Animais , Loci Gênicos , Marcadores Genéticos , Heterozigoto , Filogeografia , Polimorfismo Genético , População/genética
12.
Sci Transl Med ; 15(681): eabk3489, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36724240

RESUMO

Smart toilets are a key tool for enabling precision health monitoring in the home, but such passive monitoring has ethical considerations.


Assuntos
Aparelho Sanitário , Medicina de Precisão
13.
Zhonghua Xue Ye Xue Za Zhi ; 44(10): 825-831, 2023 Oct 14.
Artigo em Zh | MEDLINE | ID: mdl-38049334

RESUMO

Objective: To explore the clinical characteristics and treatment of COVID-19 infection in patients with relapsed/refractory B-cell non-Hodgkin lymphoma before and after receiving chimeric antigen receptor T-cell therapy, and study the influencing factors of severe COVID-19 infection in these patients. Methods: The data of 59 patients with relapsed/refractory B-cell non-Hodgkin lymphoma who received chimeric antigen receptor T-cell therapy at the Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology and Department of Hematology, the Second Affiliated Hospital, College of Medicine, Zhejiang University between December 2017 and February 2023, and who were infected with novel coronavirus between December 2022 and February 2023 were retrospectively studied. Patients were divided into light, medium, severe, and critical groups, and the differences between the groups were analyzed using the chi-square test. A univariate logistic regression model was used to evaluate the contribution of each variable and its relationship with severe infection. The chi-square and Fisher's exact tests were used to analyze the differences between the B-cell aplasia and B-cell recovery (BCR) groups. Results: Of the 59 pre- and post-infusion infections, 39 (66.1%) led to mild COVID-19, 9 (15.3%) resulted in moderate COVID-19, 10 (16.9%) resulted in severe COVID-19, and 1 (1.7%) led to critical COVID-19. Moroever, age greater than 55 years, having received autologous hematopoietic stem cell transplantation, progressive disease status, and B-cell aplasia at the time of diagnosis of COVID-19 infection are factors affecting severe infection. Patients with B-cell aplasia had a more severe infection with COVID-19 (P<0.001), a longer duration (P=0.015), a longer antiviral therapy course (P<0.001), and a higher hospitalization rate (P<0.001) than the BCR group. Conclusion: Active prevention and treatment of COVID-19 infection remains a crucial issue requiring urgent attention in managing patients with relapsed/refractory B-cell non-Hodgkin lymphoma treated with chimeric antigen receptor T-cell therapy.


Assuntos
COVID-19 , Linfoma de Células B , Receptores de Antígenos Quiméricos , Humanos , Adulto , Pessoa de Meia-Idade , Estudos Retrospectivos , COVID-19/terapia , SARS-CoV-2 , Linfoma de Células B/terapia , Terapia Baseada em Transplante de Células e Tecidos
14.
Nat Commun ; 14(1): 3711, 2023 06 22.
Artigo em Inglês | MEDLINE | ID: mdl-37349287

RESUMO

Only 60-75% of conventional kidney stone surgeries achieve complete stone-free status. Up to 30% of patients with residual fragments <2 mm in size experience subsequent stone-related complications. Here we demonstrate a stone retrieval technology in which fragments are rendered magnetizable with a magnetic hydrogel so that they can be easily retrieved with a simple magnetic tool. The magnetic hydrogel facilitates robust in vitro capture of stone fragments of clinically relevant sizes and compositions. The hydrogel components exhibit no cytotoxicity in cell culture and only superficial effects on ex vivo human urothelium and in vivo mouse bladders. Furthermore, the hydrogel demonstrates antimicrobial activity against common uropathogens on par with that of common antibiotics. By enabling the efficient retrieval of kidney stone fragments, our method can lead to improved stone-free rates and patient outcomes.


Assuntos
Cálculos Renais , Ureteroscopia , Animais , Camundongos , Humanos , Hidrogéis , Cálculos Renais/cirurgia , Magnetismo , Fenômenos Magnéticos
15.
JCO Clin Cancer Inform ; 7: e2300031, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37774313

RESUMO

PURPOSE: Development of intelligence systems for bladder lesion detection is cost intensive. An efficient strategy to develop such intelligence solutions is needed. MATERIALS AND METHODS: We used four deep learning models (ConvNeXt, PlexusNet, MobileNet, and SwinTransformer) covering a variety of model complexity and efficacy. We trained these models on a previously published educational cystoscopy atlas (n = 312 images) to estimate the ratio between normal and cancer scores and externally validated on cystoscopy videos from 68 cases, with region of interest (ROI) pathologically confirmed to be benign and cancerous bladder lesions (ie, ROI). The performance measurement included specificity and sensitivity at frame level, frame sequence (block) level, and ROI level for each case. RESULTS: Specificity was comparable between four models at frame (range, 30.0%-44.8%) and block levels (56%-67%). Although sensitivity at the frame level (range, 81.4%-88.1%) differed between the models, sensitivity at the block level (100%) and ROI level (100%) was comparable between these models. MobileNet and PlexusNet were computationally more efficient for real-time ROI detection than ConvNeXt and SwinTransformer. CONCLUSION: Educational cystoscopy atlas and efficient models facilitate the development of real-time intelligence system for bladder lesion detection.


Assuntos
Neoplasias da Bexiga Urinária , Humanos , Neoplasias da Bexiga Urinária/diagnóstico , Neoplasias da Bexiga Urinária/patologia , Bexiga Urinária/patologia , Sensibilidade e Especificidade , Cistoscopia
16.
Phys Rev Lett ; 109(10): 105502, 2012 Sep 07.
Artigo em Inglês | MEDLINE | ID: mdl-23005298

RESUMO

The issue, composition dependence of glass-forming ability (GFA) in metallic glasses (MG), has been investigated by systematic experimental measurements coupled with theoretical calculations in Cu-Zr and Ni-Nb alloy systems. It is found that the atomic-level packing efficiency strongly relates to their GFA. The best GFA is located at the largest difference in the packing efficiency of the solute-centered clusters between the glassy and crystal alloys in both MG systems. This work provides an understanding of GFA from atomic level and will shed light on the development of new MGs with larger critical sizes.

17.
Sci Transl Med ; 13(597)2021 06 09.
Artigo em Inglês | MEDLINE | ID: mdl-34108250

RESUMO

Continuous health monitoring and integrated diagnostic devices, worn on the body and used in the home, will help to identify and prevent early manifestations of disease. However, challenges lie ahead in validating new health monitoring technologies and in optimizing data analytics to extract actionable conclusions from continuously obtained health data.


Assuntos
Medicina de Precisão
18.
Eur Rev Med Pharmacol Sci ; 24(21): 11058-11064, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-33215421

RESUMO

OBJECTIVE: We aimed to explore the effect of circGFRA1 on the progression of hepatocellular carcinoma (HCC) and its underlying mechanism. PATIENTS AND METHODS: First, quantitative Real Time-Polymerase Chain Reaction (qRT-PCR) was conducted to detect the level of circGFRA1 in HCC tissues and cells. Survival analysis was applied to detect the effect of highly expressed circGFRA1 on the prognosis of HCC patients. Subsequently, circGFRA1 level was silenced in HCC cells, and proliferative, migration and angiogenesis activity of HCC cells was examined using Cell Counting Kit-8 (CCK-8), transwell test, and angiogenesis experiment. Then, we predicted the binding target of circGFRA1 through the bioinformatics website, and verified it through qRT-PCR and Dual-Luciferase reporter assay. Lastly, the interaction between them was verified through a series of in vitro experiments. RESULTS: qRT-PCR analysis showed that circGFRA1 was abnormally highly expressed in HCC tissues and HCC cells, and the high expression of circGFRA1 may lead to poor prognosis in patients with HCC. After transfecting si-circGFRA1 in HCC cells, CCK-8 and transwell experiments showed that the proliferative ability and migration of HCC cells were inhibited. Moreover, angiogenesis experiments showed that the knockdown of circGFRA1 can inhibit the blood vessels replenishment of HCC cells. The bioinformatics website suggested that miR-149 may be able to bind circGFRA1. MiR-149 was upregulated by the knockdown of circGFRA1 in HCC cells. Pearson analysis suggested that the expression levels of the two genes were negatively correlated. Dual-Luciferase reporter assay further indicated that circGFRA1 can bind to miR-149. Reverse experiment showed that the knockdown of miR-149 can partially restore the inhibited proliferative, migration, and angiogenesis activity of HCC cells caused by circGFRA1 knockdown. CONCLUSIONS: CircGFRA1 is highly expressed in HCC and its level is negatively correlated with miR-149 expression. CircGFRA1 can promote the proliferative, migration and angiogenic activity of HCC by binding miR-149.


Assuntos
Carcinoma Hepatocelular/metabolismo , Neoplasias Hepáticas/metabolismo , MicroRNAs/metabolismo , Neovascularização Patológica/metabolismo , RNA Circular/metabolismo , Carcinoma Hepatocelular/patologia , Movimento Celular , Proliferação de Células , Células Cultivadas , Humanos , Neoplasias Hepáticas/patologia , MicroRNAs/genética , Neovascularização Patológica/patologia , RNA Circular/genética
19.
Eur Rev Med Pharmacol Sci ; 24(20): 10305, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-33155261

RESUMO

Since this article has been suspected of research misconduct and the corresponding authors did not respond to our request to prove originality of data and figures, "Long non-coding RNA NEAT1 promotes tumor development and metastasis through targeting miR-224-5p in malignant melanoma, by J.-X. Zou, T.-W. Ge, published in Eur Rev Med Pharmacol Sci 2020; 24 (3): 1302-1308-DOI: 10.26355/eurrev_202002_20187-PMID: 32096166" has been withdrawn. The Publisher apologizes for any inconvenience this may cause. https://www.europeanreview.org/article/20187.

20.
Eur Rev Med Pharmacol Sci ; 24(3): 1302-1308, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-32096166

RESUMO

OBJECTIVE: Melanoma is one of the most ordinary malignant tumors. Recent studies have revealed that long noncoding RNAs (lncRNAs) play an important role in the progression of tumorigenesis. This work aims to identify how lncRNA NEAT1 functions in the progression of melanoma. PATIENTS AND METHODS: NEAT1 expression of both melanoma patients' tissue samples and cell lines was detected by Real Time-quantitative Polymerase Chain Reaction (RT-qPCR). Moreover, the function of NEAT1 was identified by performing the proliferation and transwell assay in vitro. Besides, the underlying mechanism was explored through the Luciferase assay and RNA immunoprecipitation (RIP) assay. In addition, tumor formation and metastasis assays were also conducted in vivo. RESULTS: In this research, NEAT1 expression was significantly higher in melanoma tissues compared with that in skin tissues with the melanocytic nevus. Cell proliferation and invasion of melanoma were inhibited after the knockdown of NEAT1 in vitro. Moreover, the results of further experiments revealed that microRNA-224-5p (miR-224-5p) was upregulated via the knockdown of NEAT1 and was also a direct target of NEAT1 in melanoma. Furthermore, tumor formation and metastasis of melanoma were inhibited via the knockdown of NEAT1 in nude mice. CONCLUSIONS: Our study suggests that NEAT1 enhances melanoma cell proliferation and metastasis via sponging miR-224-5p in vitro and in vivo.

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