Title:Proteomic Profile Analysis of Pulmonary Artery in a Rat Model Under
Hypoxic Pulmonary Hypertension
Volume: 19
Issue: 3
Author(s): Ma Shuang, Liu Jie, Zhang Ruixia, Liu Chuanchuan and Ma Yan*
Affiliation:
- Research Center for High Altitude Medicine, Qinghai University Medical College, Xining, 810001, P.R. China
- Key
Laboratory for Application of High-Altitude Medicine in Qinghai Province, Xining, 810001, P.R. China
Keywords:
Chronic pulmonary disorders, hypobaric hypoxia model, hypoxic pulmonary hypertension, proteomics, SD rat, physiological processes.
Abstract:
Aim: Proteomic profile analysis of pulmonary artery in a rat model under hypoxic pulmonary
hypertension.
Background: Hypoxic pulmonary hypertension (HPH) is a pathological condition exemplified by a
constant rise in pulmonary artery pressure in high-altitudes.
Objective: To investigated the proteome profile and response mechanisms of SD rats under hypoxia
over a period of four-weeks.
Methods: Proteomic profile analysis of pulmonary artery in a rat model under hypoxic pulmonary
hypertension.
Results: With 3, 204 proteins identified, 49 were up-regulated while 46 were down-regulated. Upregulated
genes included Prolargin, Protein S100-A6 and Transgelin-2, whereas Nascent polypeptide-
associated complex and Elongator complex protein 1 were down-regulated. KEGG enriched
pathways had purine metabolism, cancer and lipolysis regulation as significantly enriched in the hypoxic
group.
Conclusion: In conclusion, our findings submit a basis for downstream studies on tissue hypoxia
mechanisms alongside the associated physiological conditions. Hypoxic pulmonary hypertension
(HPH) is a pathological condition exemplified by a constant rise in pulmonary artery pressure in high
altitudes. Herein, we investigated the proteome profile and response mechanisms of Sprague-Dawley
(SD) rats under hypoxia over a period of four weeks. Unbiased iTRAQ-based quantitative proteomics
was utilized in proteome profile analysis of a rat model exposed to HPH. With 3, 204 proteins identified,
49 were upregulated while 46 were downregulated. Upregulated genes included Prolargin, Protein,
S100-A6 and Transgelin-2, whereas Nascent polypeptide-associated complex and Elongator complex
protein 1 were downregulated. The Kyoto Encyclopedia of Genes and Genomes (KEGG) enriched
pathways had purine metabolism, cancer, and lipolysis regulation as significantly enriched in the
hypoxic group. In conclusion, the findings from this study submit a basis for downstream studies on
tissue hypoxia mechanisms alongside the associated physiological conditions.