scholarly journals Clues for Improving the Pathophysiology Knowledge for Endometriosis Using Serum Micro-RNA Expression

Diagnostics ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 175
Author(s):  
Yohann Dabi ◽  
Stéphane Suisse ◽  
Ludmila Jornea ◽  
Delphine Bouteiller ◽  
Cyril Touboul ◽  
...  

The pathophysiology of endometriosis remains poorly understood. The aim of the present study was to investigate functions and pathways associated with the various miRNAs differentially expressed in patients with endometriosis. Plasma samples of the 200 patients from the prospective “ENDO-miRNA” study were analyzed and all known human miRNAs were sequenced. For each miRNA, sensitivity, specificity, and ROC AUC values were calculated for the diagnosis of endometriosis. miRNAs with an AUC ≥ 0.6 were selected for further analysis. A comprehensive review of recent articles from the PubMed, Clinical Trials.gov, Cochrane Library, and Web of Science databases was performed to identify functions and pathways associated with the selected miRNAs. In total, 2633 miRNAs were found in the patients with endometriosis. Among the 57 miRNAs with an AUC ≥ 0.6: 20 had never been reported before; one (miR-124-3p) had previously been observed in endometriosis; and the remaining 36 had been reported in benign and malignant disorders. miR-124-3p is involved in ectopic endometrial cell proliferation and invasion and plays a role in the following pathways: mTOR, STAT3, PI3K/Akt, NF-κB, ERK, PLGF-ROS, FGF2-FGFR, MAPK, GSK3B/β–catenin. Most of the remaining 36 miRNAs are involved in carcinogenesis through cell proliferation, apoptosis, and invasion. The three main pathways involved are Wnt/β–catenin, PI3K/Akt, and NF–KB. Our results provide evidence of the relation between the miRNA profiles of patients with endometriosis and various signaling pathways implicated in its pathophysiology.

2018 ◽  
Vol 314 (5) ◽  
pp. G559-G565 ◽  
Author(s):  
Xinli Huang ◽  
Yun Gao ◽  
Jianjie Qin ◽  
Sen Lu

The aberrant expression of long noncoding RNAs (lncRNAs) has been involved in various human tumors including hepatocellular carcinoma (HCC). Our study aimed to investigate the potential molecular mechanism of lncRNA myocardial infarction-associated transcript (MIAT) in HCC. The expression of MIAT and micro-RNA (miR)-214 in HCC tissues and cells was examined by quantitative real-time PCR, and the levels of enhancer of zeste homolog 2 (EZH2) and β-catenin were detected by Western blot assay. Immunoprecipitation analysis was used to detect the level of H3/H4 histone acetylation. RNA pull-down assay was performed to confirm the targeting regulatory relationship between miR-214 and MIAT. Cell viability, proliferation, and invasion were analyzed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), [3H]thymidine incorporation, and Transwell assays, respectively. BALB/c nude mice were used to establish a hepatocellular carcinoma animal model with subcutaneous injection of SK-HEP-1 cells. Upregulation of MIAT is related to the proliferation and invasion of HCC, and downregulating MIAT expression inhibited HCC cell proliferation and invasion. The H3/H4 histone acetylation level of MIAT promoter in HCC tissues was higher than that in normal tissues. MIAT negatively regulated miR-214 in HCC cells. Inhibition of miR-214 reversed the influence of MIAT downregulation on HCC cell proliferation and invasion. In nude mouse xenograft models, downregulation of MIAT markedly suppressed the tumor growth of HCC via releasing miR-214. In conclusion, lncRNA MIAT promotes the proliferation and invasion of HCC cells through sponging miR-214, which brings a novel target for the therapy and prognosis of hepatocellular carcinoma. NEW & NOTEWORTHY This is the first research showing long noncoding RNA (lncRNA) myocardial infarction-associated transcript (MIAT) to have a regulatory effect on hepatocellular carcinoma. Micro-RNA (miR)-214 could be sponged by MIAT to promote the proliferation and invasion of hepatocellular carcinoma cells. The lncRNA MIAT/miR-214 axis brings a novel insight for the therapy and prognosis of hepatocellular carcinoma.


2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Yi-Yi Wang ◽  
Hua Duan ◽  
Sha Wang ◽  
Yong-Jun Quan ◽  
Jun-Hua Huang ◽  
...  

Several theories on the origin of adenomyosis (ADS) have been proposed, of which the most widely accepted is the fundamental pathogenic role of uterine eutopic endometrium. Emerging evidence suggests that circular RNAs participate in the multiple tumorgenesis. The vital importance of circular RNA PVT1 (circPVT1) in the pathological progress like malignancies has been well documented. Nevertheless, its underlying correlation with ADS remains elusive yet. The purpose of this study was to investigate the expression pattern, regulatory effect, and internal mechanism of circPVT1 in ADS. qRT-PCR was performed to detect the relative mRNA expression of circPVT1, miR-145, and Talin1 in ADS endometrial tissue and cells. The protein level of Talin1 was measured by Western blot and immunochemistry. Immunofluorescence was used to identify the primary endometrial epithelial and stromal cells. circPVT1 knockdown in vitro was achieved by transfecting with specific lentivirus vector CCK-8, and colony formation assays were utilized to assess cell proliferation; meanwhile, the transwell assay was employed for evaluating cell invasion ability. By conducting bioinformatics, dual-luciferase reporter assay, or RNA immunoprecipitation (RIP) experiment, the interaction between miR-145 and circPVT1 or Talin1 was verified. Rescue experiments further determined the regulatory effect of circPVT1/miR-145/Talin1 axis. We found both circPVT1 and Talin1 were markedly upregulated in ADS endometrial tissue and cells, whereas miR-145 was decreased. Elevated expression of circPVT1 was closely related to the severity of dysmenorrhea, menorrhagia, and uterine enlargement of patients with ADS. Knockdown of circPVT1 inhibited adenomyotic epithelial and stromal cell proliferation and invasion. Further mechanistic experiments revealed that circPVT1 negatively regulated miR-145 through serving as a molecular sponge. And the facilitating effect of circPVT1 was partially reversed by miR-145. Talin1 was demonstrated to be a down target of miR-145 and indirectly affected by circPVT1. Our findings unveiled that enhanced circPVT1 may be involved in the pathogenesis of ADS via stimulating endometrial cell proliferation and invasion. The establishment of circPVT1/miR-145/Talin1 pathway might present a novel therapeutic insight for ADS.


2019 ◽  
Vol 90 (3-4) ◽  
pp. 343-370
Author(s):  
Philippe Amat ◽  
Éric Tran Lu Y

Introduction : Le syndrome d’apnées obstructives du sommeil (SAOS) est une affection très répandue et insuffisamment diagnostiquée, ce qui en fait un problème majeur de santé publique et de sécurité. La rééducation myofonctionnelle orofaciale (RMO) a été montrée efficace dans le traitement multidisciplinaire des SAOS de l’enfant, de l’adolescent et de l’adulte et elle est prescrite à plusieurs étapes de ces prises en charge. Objectifs : L’objectif principal de cette revue systématique de la littérature était d’évaluer l’efficacité de la rééducation myofonctionnelle orofaciale (RMO), active ou passive, dans le traitement du syndrome d’apnées obstructives du sommeil chez les enfants, les adolescents et les adultes. Matériel et méthodes : La revue systématique de la littérature fut entreprise à partir des trois bases de données électroniques : Medline (via PubMed),Cochrane Library, Web of Science Core Collection, et complétée par une recherche limitée de la littérature grise (Google Scholar) afin d’identifier les études évaluant l’efficacité de la RMO sur le SAOS. Le critère de jugement principal était une diminution de l’indice d’apnées/hypopnées (IHA) d’au moins cinq épisodes par heure par rapport à l’état initial. Les critères de jugement secondaires étaient une amélioration de la qualité subjective du sommeil, de la qualité du sommeil mesurée par polysomnographie nocturne et de la qualité de vie mesurée subjectivement. Résultats : Seulement dix études répondaient à tous les critères d’inclusion. Huit étaient des essais cliniques contrôlés randomisés, une était une étude de cohorte prospective et une autre était une étude de cohorte rétrospective. Six études étaient consacrées au SAOS de l’adulte et quatre au SAOS pédiatrique. Toutes les études incluses ont été évaluées à « faible risque de biais » d’après les douze critères de risque de biais du Cochrane Back Review Group. D’après les données probantes disponibles, la RMO permet une réduction significative de l’IAH, jusqu’à 90,6 % chez l’enfant et jusqu’à 92,06 % chez l’adulte. Elle permet une diminution significative de l’intensité et de la fréquence du ronflement, participe à une réduction de la somnolence diurne, limite la réapparition des symptômes d’apnée obstructive du sommeil (AOS) après adénoamygdalectomie chez l’enfant et améliore l’adhésion au traitement par ventilation en pression positive continue (PPC). La RMO passive, avec l’assistance apportée au patient par le port d’une orthèse sur mesure à bille, augmente l’observance à la rééducation, permet une réduction significative de l’intensité du ronflement, de l’IAH et un accroissement significatif des voies aérifères supérieures. Conclusions : Les données publiées montrent que la rééducation myofonctionnelle orofaciale est efficace dans les traitements multidisciplinaires des SAOS de l’enfant, de l’adolescent et de l’adulte et devrait être largement prescrite à plusieurs étapes de ces prises en charge. La RMO passive, avec l’orthèse d’avancée mandibulaire à bille conçue par Michèle Hervy-Auboiron, aide à pallier les fréquents défauts d’observance observés lors des traitements par RMO active.


Diabetes ◽  
2018 ◽  
Vol 67 (Supplement 1) ◽  
pp. 1718-P
Author(s):  
DEBORA OLIOSO ◽  
MARCO DAURIZ ◽  
ELISABETTA BACCHI ◽  
CARLO NEGRI ◽  
ENZO BONORA ◽  
...  

2020 ◽  
Vol 17 (5) ◽  
pp. 472-486
Author(s):  
Lucy Beishon ◽  
Kannakorn Intharakham ◽  
David Swienton ◽  
Ronney B. Panerai ◽  
Thompson G. Robinson ◽  
...  

Background: Cognitive Training (CT) has demonstrated some benefits to cognitive and psychosocial function in Mild Cognitive Impairment (MCI) and early dementia, but the certainty related to those findings remains unclear. Therefore, understanding the mechanisms by which CT improves cognitive functioning may help to understand the relationships between CT and cognitive function. The purpose of this review was to identify the evidence for neuroimaging outcomes in studies of CT in MCI and early Alzheimer’s Disease (AD). Methods: Medline, Embase, Web of Science, PsycINFO, CINAHL, and The Cochrane Library were searched with a predefined search strategy, which yielded 1778 articles. Studies were suitable for inclusion where a CT program was used in patients with MCI or AD, with a structural or functional Magnetic Resonance Imaging (MRI) outcome. Studies were assessed for quality using the Downs and Black criteria. Results: Medline, Embase, Web of Science, PsycINFO, CINAHL, and The Cochrane Library were searched with a predefined search strategy, which yielded 1778 articles. Studies were suitable for inclusion where a CT program was used in patients with MCI or AD, with a structural or functional Magnetic Resonance Imaging (MRI) outcome. Studies were assessed for quality using the Downs and Black criteria. Conclusions: CT resulted in variable functional and structural changes in dementia, and conclusions are limited by heterogeneity and study quality. Larger, more robust studies are required to correlate these findings with clinical benefits from CT.


Sign in / Sign up

Export Citation Format

Share Document