Project description:Lung metastasis is a major factor affecting long-term survival in adenoid cystic carcinoma patients. Here, we report the long noncoding RNA (lncRNA) MRPL23 antisense RNA 1 (MRPL23-AS1), which exhibited remarkably upregulated expression and was correlated with lung metastasis and overall survival in salivary adenoid cystic carcinoma (SACC) patients. To further study which biological process MRPL23-AS1 may be involved in, SACC-83 cells treated with the control vector or MRPL23-AS1-overexpressing vector were subjected to an mRNA microarray. GO analysis was used to identify the significant biological functions of differentially expressed mRNAs.
Project description:Lung metastasis is a major factor affecting long-term survival in adenoid cystic carcinoma patients. Here, we report the long noncoding RNA (lncRNA) MRPL23 antisense RNA 1 (MRPL23-AS1), which exhibited remarkably upregulated expression and was correlated with lung metastasis and overall survival in salivary adenoid cystic carcinoma (SACC) patients. To further study which biological process MRPL23-AS1 may be involved in, SACC-LM cells treated with si-control or si-MRPL23-AS1 were subjected to an mRNA microarray. GO analysis was used to identify the significant biological functions of differentially expressed mRNAs.
Project description:Expression of long noncoding RNA EGFR-AS1 is found to be dysregulated in cancer especially non small cell lung cancer. However, the role of long noncoding RNA EGFR-AS1 in non small cell lung cancer remains relatively unknown. Our study aim to discovered the role of long noncoding RNA EGFR-AS1 in lung cancer progression and response to chemotherapy.
Project description:Neurotropic infiltrative growth and distant metastasis are the main causes of death in salivary adenoid cystic carcinoma (SACC) patients. Long noncoding RNAs (lncRNAs) are involved in many human neoplasms, however their potential roles in SACC are unclear. In our study, we found that ADAMTS9-AS2 was significantly upregulated in SACC patients with metastasis and SACC -LM cells. Moreover, ADAMTS9-AS2 expression was closely associated with the prognosis and distant metastasis in SACC patients. Next, we found that c-myc could specifically bind to the promoter of ADAMTS9-AS2 and activated its transcription. Knockdown of ADAMTS9-AS2 significantly inhibited migration and invasion of SACC cells in vitro and distant lung metastasis in vivo. Furthermore, ADAMTS9-AS2 which mainly expressed in the cytoplasm shared miRNA response elements with ITGA6. Overexpression of ADAMTS9-AS2 competitively bound to miR-143-3p that inhibited ITGA6 from miRNA-mediated degradation, thus activated the activity of PI3K/Akt and MEK/Erk signaling and facilitated SACC metastasis. In summary, ADAMTS9-AS2 promotes migration and invasion in SACC by competing with miR-143-3p. This sheds a new insight into the regulation mechanism of ADAMTS9-AS2 and provides a possible application for the SACC treatment.
Project description:The long noncoding RNA NKX2-1-AS1 is highly expressed in primary lung adenocarcinomas compared to squamous carcinomas, similar to its adjacent protein-coding gene NKX2-1, but its contribution to lung tumorigenesis is not well understood. In this study we knockdown NKX2-1-AS1 by siRNA transfection and analyze the effect on gene expression in the lung carcinoma H441 cell line.
Project description:As the most commonly diagnosed lung cancer, non–small cell lung carcinoma (NSCLC) is regulated by many long noncoding RNAs (lncRNAs). In the present study, we found that SH3PXD2A-AS1 expression in NSCLC tissues was upregulated compared with that in normal lung tissues in The Cancer Genome Atlas (TCGA) database by using the GEPIA website. K-M analysis was performed to explore the effects of this molecule on the survival rate in NSCLC. The results demonstrated that SH3PXD2A-AS1 expression was increased in human NSCLC, and high SH3PXD2A-AS1 expression was correlated with poor overall survival. SH3PXD2A-AS1 promotes lung cancer cell proliferation and accelerates cell cycle progression in vitro. Animal studies validated that knockdown of SH3PXD2A-AS1 inhibits NSCLC cell proliferation in vivo. Mechanically, SH3PXD2A-AS1 interacted with DHX9 to enhance FOXM1 expression, promote tumour cell proliferation and accelerate cell cycle progression. Altogether, SH3PXD2A-AS1 promoted NSCLC growth by interacting with DHX9 to enhance FOXM1 expression. SH3PXD2A-AS1 may serve as a promising predictive biomarker for the diagnosis and prognosis of patients with NSCLC.
Project description:1. Evaluate the diagnostic value of long noncoding RNA (CCAT1) expression by RT-PCR in peripheral blood in colorectal cancer patients versus normal healthy control personal.
2. Evaluate the clinical utility of detecting long noncoding RNA (CCAT1) expression in diagnosis of colorectal cancer patients & its relation to tumor staging.
3. Evaluate the clinical utility of detecting long noncoding RNA (CCAT1) expression in precancerous colorectal diseases.
4. Compare long noncoding RNA (CCAT1) expression with traditional marker; carcinoembryonic antigen (CEA) and Carbohydrate antigen 19-9 (CA19-9) in diagnosis of colorectal cancer.
Project description:Characterisation IER3-AS1 interacting proteins using chromatin oligo-affinity precipitation (ChOP) followed by mass spectrometry. The HeLa cell lysates was incubated with biotinylated antisense oligonucleotides (ASO), targeting an experimental target antisense long noncoding RNA IER3-AS1 or a control RNA LacZ. LacZ and IER3-AS1 interacting proteomes were pulldown using Streptavidin beads. The eluted protein samples from both LacZ control ASOs and IER3-AS1 ASOs subjected to mass-spectrometry analyses to identify IER3-AS1 interacting proteins.
Project description:To identify the transcriptomic signature of adenoid cystic carcinoma of the lacrimal gland (LGACC), we performed RNA sequencing on LGACC tumor samples and normal lacrimal gland samples.