Title:Long Non-coding RNAs Influence Aging Process of Sciatic Nerves in SD Rats
Volume: 27
Issue: 14
Author(s): Rui Kuang, Yi Zhang, Guanggeng Wu, Zhaowei Zhu, Shuqia Xu, Xiangxia Liu*, Yangbin Xu*Yunxiang Luo*
Affiliation:
- Department of Plastic Surgery, University of Tennessee Health Science Center, Memphis, TN, United States
- Department of Plastic Surgery, the First Affiliated Hospital of Sun Yat-Sen University, No. 58 Zhongshan Road 2, Guangzhou 510080, China
- Department of Plastic Surgery, the First Affiliated Hospital of Sun Yat-Sen University, No. 58 Zhongshan Road 2, Guangzhou 510080, China
Keywords:
Long non-coding RNAs, peripheral nerves, aging, transcriptome, bioinformatics, DNA.
Abstract:
Objectives: To investigate the long non-coding RNAs (lncRNAs) changes in the sciatic
nerve (SN) in Sprague Dawley (SD) rats during aging.
Methods: Eighteen healthy SD rats were selected at the age of 1 month (1M) and 24 months (24M)
and SNs were collected. High-throughput transcriptome sequencing and bioinformatics analysis
were performed. Protein-protein interaction (PPI) networks and competing endogenous RNA
(ceRNA) networks were established according to differentially expressed genes (DEGs).
Result: As the length of lncRNAs increased, its proportion to the total number of lncRNAs decreased.
A total of 4079 DElncRNAs were identified in Con vs. 24M. GO analysis was primarily
clustered in nerve and lipid metabolism, extracellular matrix, and vascularization-related fields.
There were 17 nodes in the PPI network of the target genes of up-regulating genes including Itgb2,
Lox, Col11a1, Wnt5a, Kras, etc. Using quantitative RT-PCR, microarray sequencing accuracy was
validated. There were 169 nodes constructing the PPI network of down-regulated target genes,
mainly including Col1a1, Hmgcs1, Hmgcr. CeRNA interaction networks were constructed.
Conclusion: Lipid metabolism, angiogenesis, and ECM fields might play an important role in the
senescence process in SNs. Col3a1, Serpinh1, Hmgcr, and Fdps could be candidates for nerve
aging research.