Microarray to deep sequencing: transcriptome and miRNA profiling to elucidate molecular pathways in systemic lupus...

Area of Science:

• Immunology
• Genetics
• Molecular Biology

Background:

• Systemic lupus erythematosus (SLE) is a complex autoimmune disease with varied clinical presentations.
• Its multifactorial etiology involves genetic, epigenetic, and environmental factors, complicating treatment and prognosis.

Purpose of the Study:

• To explore how advancements in molecular technologies have enhanced the understanding of SLE pathogenesis.
• To highlight the role of genetic and epigenetic alterations in SLE development.

Main Methods:

• DNA microarray technology for high-throughput gene analysis.
• Analysis of DNA methylation patterns and microRNAs.
• Next-generation sequencing (NGS), including RNA sequencing, for high-resolution gene expression profiling.

Main Results:

• Microarray analysis identified SLE-associated genes, aberrant DNA methylation, and differential microRNAs.
• Interferon signature, cytokine, chemokine, and apoptosis-related gene dysregulation were implicated.
• RNA sequencing provided deeper insights into gene expression, splicing events, noncoding RNAs, and novel loci in SLE.

Conclusions:

• Technological advancements from microarrays to deep sequencing have significantly improved the deciphering of molecular pathways in SLE.
• This progress opens new avenues for developing targeted and effective treatment strategies for SLE.