Background: Long non-coding RNAs (lncRNAs) have critical functions within esophageal squamous cell carcinoma (ESCC). However, the function and mechanism underlying ESCC-associated lncRNA-1 (ESCCAL-1) in ESCC tumorigenesis have not been well clarified.
Methods: ESCCAL-1, miR-590 and LRP6 were quantified using qRT-PCR. Cell viability, migration and invasion abilities were measured using CCK-8 assay and transwell assays. The protein pression was determined with western blot assay. The xenograft model assays were used to examine the impact of ESCCAL-1 on tumorigenic effect in vivo. Direct relationships among ESCCAL-1, miR-590 and LRP6 were confirmed using dual-luciferase reporter assays.
Results: The present work discovered the ESCCAL-1 up-regulation within ESCC. Furthermore, ESCCAL-1 was found to interact with miR-590 and consequently restrict its expression. Functionally, knocking down ESCCAL-1 or over-expressing miR-590 hindered ESCC cell growth, invasion, and migration in vitro. Moreover, inhibition of miR-590 could reverse the effect of knockdown of ESCCAL-1 on cells. Importantly, it was confirmed that LRP6 was miR-590's downstream target and LRP6 over-expression also partly abolished the role of miR-590 overexpression in ESCC cells.
Conclusion: We have uncovered a novel regulatory network comprising aberrant interaction of ESCCAL-1/miR-590/LRP6 participated in ESCC progression.
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http://dx.doi.org/10.1002/cam4.4915 | DOI Listing |
Alzheimers Dement
December 2024
Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.
Background: Compelling evidence has shown that long non-coding RNAs (lncRNAs) contribute to Alzheimer's disease (AD) pathogenesis including β-amyloid plaque deposition (Aβ) and intracellular neurofibrillary tangles. In this study, we aimed to investigate the critical role of lncRNA Gm20063 in AD.
Method: Six-month-old male APP/PS1 transgenic mice and wild type (WT) C57BL/6 (B6) littermates were obtained from the Nanjing University Animal Model Research Center.
Alzheimers Dement
December 2024
Sunnybrook Health Sciences Centre, Toronto, ON, Canada.
Background: White matter hyperintensities (WMH) are commonly observed on MRI in Alzheimer's disease (AD), but the molecular pathways underlying their relationships with the ATN biomarkers remain unclear. The aim of this study was to identify genetic variants that may modify the relationship between WMH and the ATN biomarkers.
Method: This genome-wide interaction study (GWIS) included individuals with AD, MCI, and normal cognition from ADNI (n = 1012).
Hum Cell
January 2025
Department of Gastrointestinal and Colorectal Surgery, China-Japan Union Hospital of Jilin University, No. 126 Sendai Street, Nanguan District, Changchun, 130031, China.
Imatinib resistance is a major obstacle to the successful treatment of gastrointestinal stromal tumors (GIST). Long non-coding RNAs (LncRNAs) have been identified as important regulatory factors in chemotherapy resistance. This study aimed to identify key lncRNAs involved in imatinib resistance of GISTs.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Stanford University, Stanford, CA, USA.
Background: APOE*4 is the strongest genetic risk for late-onset Alzheimer's disease (AD), but other genetic loci may counter its detrimental effect, providing therapeutic avenues. Expanding beyond non-Hispanic White subjects, we sought to additionally leverage genetic data from non-Hispanic and Hispanic subjects of admixed African ancestry to perform trans-ancestry APOE*4-stratified GWAS, anticipating that allele frequency differences across populations would boost power for gene discovery.
Method: Participants were ages 60+, of European (EU; ≥75%) or admixed African (AFR; ≥25%) ancestry, and diagnosed as cases or controls.
Alzheimers Dement
December 2024
Homi Bhabha National Institute, Mumbai, Maharashtra, India.
Background: Recent advances in understanding the regulatory networks implicated in Alzheimer's Disease (AD) evinces the involvement of long non-coding RNAs (lncRNAs) as crucial regulatory players. The present study explores the role played by maternally imprinted lncRNA XIST in regulating the sex-biased prevalence of AD.
Method: With whole transcriptomic sequencing data from the hippocampal RNA of post-mortem AD brains from humans and APP/PS1 mice, the altered expression of XIST in AD was studied.
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