MiRNA expression profiling of locally advancer cervical cancer
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ABSTRACT:
PROVIDER: PRJNA739746 | ENA |
REPOSITORIES: ENA
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Project description:MiRNA expression in totally 200 locally advanced cervical tumor biopsies were analysed by sequencing of small RNAs with Illumina HiSeq 2500. Based on the RNA isolation protocols, 90 samples were assigned to an experimental cohort, and 110 samples were assigned to a validation cohort (validation cohort1). The miRNA expression data was used to investigate miRNAs associated with prognosis and clinocopathological features in cervical cancer patients. Further we used the miRNA expression data to discover target genes by mathed sample miRNA-mRNA expression analysis with mRNA expression data.
2022-02-21 | GSE178629 | GEO
Project description:Gene expression profile in Locally Advanced Cervical Cancer patients The RNA total samples were obtain from 89 biopsies of patients with locally advanced cervical cancer (staged).
2014-05-01 | E-GEOD-56303 | biostudies-arrayexpress
Project description:Gene expression profile in Locally Advanced Cervical Cancer patients
2014-05-01 | GSE56303 | GEO
Project description:Cervical cancer is one of the most common cancers in women worldwide. The role of HPV in cervical cancer is well studied, however, the underlying mechanism promoting cervical tumorigenesis is still not fully understood. Recently, emodin was shown to induce cell cycle arrest, induction of differentiation, downregulation of TGF β signaling pathway and apoptosis in cervical cancer cell lines. Further, recent studies have shown the role of miRNAs in mediating abnormal regulatory mechanisms leading to the pathogenesis of cervical cancer and large scale miRNA profiling studies have examined the use of miRNAs as cervical cancer diagnostic markers. However, to date, there is no study being performed to analyze the changes in miRNAs following emodin treatment to determine whether emodin mediates its effects by regulating the expression of miRNAs. Therefore, the aim of the current study is to perform miRNA profiling in cervical cancer cells following emodin treatment and to analyze the roles of differentially expressed miRNAs in regulating the pathogenesis and treatment of cervical cancer.
2022-06-30 | GSE135699 | GEO
Project description:Cervical cancer is the second most common cancer in women worldwide. In addition to the important role played by HPV, the underlying mechanism promoting cervical tumorigenesis is complex and involves deregulation of key signaling pathways. Recently, role of miRNA mediated abnormal regulatory mechanisms is implicated in the pathogenesis of cervical cancer. Micro RNAs are regulatory, non‐coding RNAs about 21–23 nucleotides in length and effects the expression of a number of genes at the post‐transcriptional level. For the past few decades, role of curcumin in inhibiting the growth of cervical cancer and increasing the chemo and radio- sensistivity has been studied extensively. Interestingly, curcumin was shown to downregulate NF-κB, Wnt/β-catenin, TGF‐β and various other signaling pathways in cervical cancer cells. Although, a number of microarray studies have examined the use of miRNAs as cancer diagnostic markers, the regulation of miRNAs upon treatment with curcumin in cervical cancer cells has not been studied. The current study is aimed to perform miRNA profiling in cervical cancer cells following curcumin treatment and to study the role of miRNAs in regulating the different signaling pathways.
2022-06-30 | GSE134723 | GEO
Project description:miRNA expression profiling in cervical cancer cells following curcumin treatment
| PRJNA556228 | ENA
Project description:miRNA expression profiling in cervical cancer cells following emodin treatment
| PRJNA559740 | ENA
Project description:Background. MicroRNAs (miRNAs) are short (~22 nt) non-coding regulatory RNAs that control gene expression at the translational level. Deregulation of miRNA expression has been discovered in a wide variety of tumours and it is now clear that they contribute to cancer development and progression. This prompted the development of miRNA-chips for cancer diagnosis or prognosis, opening a new door to understand carcinogenesis. Cervical cancer is one of the most common cancers in women worldwide. Therefore, there is a strong need for a non-invasive, fast and efficient method to diagnose the disease. We investigated miRNA expression profiles in cervical cancer using a microarray platform developed in house containing probes for mature miRNAs. Results. We have evaluated miRNA expression profiles of a heterogeneous set of cervical tissues from 25 different patients. This set included 19 normal cervical tissues, 4 squamous cell carcinoma, 5 high-grade squamous intraepithelial lesion (HSIL) and 9 low-grade squamous intraepithelial lesion (LSIL) samples. We observed high variability in miRNA expression especially among normal cervical samples, which prevented us from obtaining a unique miRNA expression signature for this tumour type. However, miRNAs deregulation in malignant and pre-malignant cervical tissues was detected after tackling the high variability observed. We were also able to identify putative targets of relevant candidate miRNAs. Conclusions. Our results show that miRNA deregulation may play an important role in the malignant transformation of cervical squamous cells. In addition, deregulated miRNAs highlight new candidate targets allowing a better understanding of the molecular mechanism of this tumour type.
2010-08-01 | GSE19611 | GEO
Project description:Background. MicroRNAs (miRNAs) are short (~22 nt) non-coding regulatory RNAs that control gene expression at the translational level. Deregulation of miRNA expression has been discovered in a wide variety of tumours and it is now clear that they contribute to cancer development and progression. This prompted the development of miRNA-chips for cancer diagnosis or prognosis, opening a new door to understand carcinogenesis. Cervical cancer is one of the most common cancers in women worldwide. Therefore, there is a strong need for a non-invasive, fast and efficient method to diagnose the disease. We investigated miRNA expression profiles in cervical cancer using a microarray platform developed in house containing probes for mature miRNAs. Results. We have evaluated miRNA expression profiles of a heterogeneous set of cervical tissues from 25 different patients. This set included 19 normal cervical tissues, 4 squamous cell carcinoma, 5 high-grade squamous intraepithelial lesion (HSIL) and 9 low-grade squamous intraepithelial lesion (LSIL) samples. We observed high variability in miRNA expression especially among normal cervical samples, which prevented us from obtaining a unique miRNA expression signature for this tumour type. However, miRNAs deregulation in malignant and pre-malignant cervical tissues was detected after tackling the high variability observed. We were also able to identify putative targets of relevant candidate miRNAs. Conclusions. Our results show that miRNA deregulation may play an important role in the malignant transformation of cervical squamous cells. In addition, deregulated miRNAs highlight new candidate targets allowing a better understanding of the molecular mechanism of this tumour type. In this study we used a common reference design experiment where the common reference used was a commercial RNA from normal cervix (Ambion) and the test samples were 4 pre-treatment squamous cell cervical carcinoma, 7 high-grade Squamous Intraepithelial Lesion (CINII, n=2 and CIN III, n=5) sample, 9 low-grade Squamous Intraepithelial Lesion (CIN I) samples, 19 normal cervix samples and 4 pools of normal cervix samples.
2010-08-01 | E-GEOD-19611 | biostudies-arrayexpress