Related Experiment Video
Updated: Feb 14, 2026

Isolation of Intrapulmonary Artery and Smooth Muscle Cells to Investigate Vascular Responses
Published on: June 8, 2022
Transcriptomic sequencing reveals diverse adaptive gene expression responses of human vascular smooth muscle cells to
Shengdi Li1,2,3, Ziyi Chang1, Tianqing Zhu1
1Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center , Ann Arbor, Michigan.
Abstract:
Nitro-conjugated linoleic acid (NO2-CLA) is formed by metabolic and inflammatory reactions of nitric oxide and nitrite, and represents the most abundant nitro-fatty acid species in humans. These electrophilic fatty acid nitroalkene derivatives mediate pleiotropic cell signaling responses. Here, we report a systematic approach to investigate the effect of NO2-CLA on human coronary artery smooth muscle cells (hCASMC), based on the RNA-Seq and bioinformatics analysis. There were extensive differentially expressed genes in NO2-CLA vs. control (510) and NO2-CLA vs. CLA (272) treatment groups, respectively. Notably, only minimal alterations were observed in CLA vs. control conditions, indicating that the electrophilic character of NO2-CLA is requited to induce differential gene expression responses independently from native CLA. Functional enrichment analysis of differentially expressed genes reveals multiple cellular processes to be affected under NO2-CLA treatment, including cell proliferation, lipid metabolism, antioxidant and inflammatory-related gene expression responses. These findings reveal that nitro-fatty acid derivatives such as NO2-CLA regulate a broad array of adaptive gene expression responses by hCASMC.
Related Concept Videos
What is Gene Expression?
Gene expression is the process in which DNA directs the synthesis of functional products, that is, proteins. Cells can regulate gene expression at various stages. It allows organisms to generate different cell types and enables cells to adapt to internal and external factors.
Genetic Information Flows from DNA to RNA to Protein
A gene is a stretch of DNA that serves as the blueprint for functional RNAs and proteins. Since DNA is made up of nucleotides and proteins consist of amino...
Cell Specific Gene Expression
Cell Specific Gene Expression
Diversity in Cell Signaling Responses
Graded and Abrupt Responses
Some signaling systems generate...
Relative Strengths of Conjugate Acid-Base Pairs
Functions of Smooth Muscles
Function of visceral smooth muscles
Visceral smooth muscle is found in the walls of all hollow organs, except the heart, and is a key player in the involuntary movements that drive the functioning of these internal organs. This tissue is arranged in...

