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Study on the Changes of Fecal Lipid Metabolites in Thyroid Cancer Patients Before and After Treatment

ABSTRACT:

Study on the Changes of Fecal Lipid Metabolites in Thyroid Cancer Patients Before and After Treatment

INSTRUMENT(S): Liquid Chromatography MS - negative - reverse phase, Liquid Chromatography MS - positive - reverse phase

PROVIDER: MTBLS12769 | MetaboLights | 2025-07-25

REPOSITORIES: MetaboLights

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			Action	DRS
	a_MTBLS12769_LC-MS_negative_reverse-phase_metabolite_profiling.txt	Txt
	a_MTBLS12769_LC-MS_positive_reverse-phase_metabolite_profiling.txt	Txt
	i_Investigation.txt	Txt
	m_REQ20250717211868_LC-MS_negative_reverse-phase_metabolite_profiling_v2_maf.tsv	Tabular
	m_REQ20250717211868_LC-MS_positive_reverse-phase_metabolite_profiling_v2_maf.tsv	Tabular

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Project description:Background: Many studies have shown that long noncoding RNAs (lncRNAs) derived from the host and human immunodeficiency virus (HIV) itself play important roles in virus-host interactions and viral pathogenesis. It is unclear whether lncRNAs were involved in ART therapy of HIV/AIDS patients. Methods: Six HIV/acquired immunodeficiency syndrome (AIDS) subjects pre-HAART and post-HAART with effective control of plasma viremia (<20 HIV RNA copies/ml) and 6 healthy subjects were recruited in this study to perform RNA sequencing. The expression profiles of lncRNAs and mRNAs were obtained, to exploration of the potential roles of lncRNAs, trans- and cis-acting analysis was used. Then, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses were performed to sort out functional categories of genes. Results: We identified a total of 974 lncRNAs whose expression levels were restored to normal after ART therapy. The results of the cis-acting analysis showed that only six lncRNAs have cis-regulated target genes, among which the target gene RP11-290F5.1, interferon regulatory factors 2 (IRF2), could promote HIV replication. We also identified lncRNA CTB-119C2.1, which regulates most mRNAs with differential expression between pre- and post-HAART, and the differences were significant. We selected lncRNA CTB-119C2.1 for qRT–PCR verification, and the results were consistent with those of RNA-seq. RAB3A and GADD45A, two of the lncRNA CTB-119C2.1-associated genes, have been shown to be associated with HIV infection. KEGG analysis of lncRNA CTB-119C2.1-associated genes revealed that most of the genes are involved in the p53 signaling pathway or pathways related to cell circulation and DNA replication. Conclusion: In this study, we used RNA-seq to systematically compare the expression profiles of lncRNAs in HIV subjects between untreated and treated time points. We successfully identified some lncRNAs with differential expression during certain periods (no HIV infection, HIV infection before treatment, and after treatment). Their expression is associated with HIV viral loads, and some of their regulating genes were found to be involved in HIV pathogenesis through bioinformatic analysis. These findings could help to reveal the underlying molecular mechanism of the progression of HIV infection.

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Study on the Changes of Fecal Lipid Metabolites in Thyroid Cancer Patients Before and After Treatment

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