Long non-coding RNA expression identified by microarray analysis: Candidate biomarkers in human acral lentiginous...

Area of Science:

• Oncology
• Molecular Biology
• Genetics

Background:

• Acral lentiginous melanoma (ALM) is a rare but aggressive skin cancer.
• Long non-coding RNAs (lncRNAs) are increasingly recognized for their roles in cancer pathogenesis.
• Previous research suggests lncRNAs involvement in melanoma development, progression, and metastasis.

Purpose of the Study:

• To investigate the association between lncRNAs and acral lentiginous melanoma (ALM).
• To identify differentially expressed lncRNAs and messenger RNAs (mRNAs) in ALM tumors compared to adjacent non-tumor tissues.
• To explore potential lncRNA-based mechanisms and therapeutic targets for ALM.

Main Methods:

• Microarray analysis was performed on ALM tumor and adjacent non-tumor tissues.
• Differential expression of lncRNAs and mRNAs was identified.
• Reverse transcription-quantitative PCR (RT-qPCR) was used to validate selected lncRNAs.
• lncRNA and mRNA co-expression networks, along with competing endogenous networks, were constructed.

Main Results:

• A total of 4,488 lncRNAs and 3,913 mRNAs were found to be differentially expressed.
• 2,211 lncRNAs were upregulated and 2,277 were downregulated in ALM tissues.
• 1,191 mRNAs were upregulated and 2,722 were downregulated in ALM tissues.
• Validation confirmed differential expression for selected lncRNAs.

Conclusions:

• The study identified a significant number of differentially expressed lncRNAs and mRNAs in ALM.
• These findings suggest novel mechanisms underlying ALM pathogenesis and malignant progression.
• lncRNAs represent potential diagnostic biomarkers and therapeutic targets for ALM treatment.