Interrelated Cathepsin S-Lowering and LDL Subclass Profile Improvements Induced by Atorvastatin in the Plasma of Stable Angina Patients

2014
Authors
Mirjanić-Azarić, BosaVekić, Jelena

Zeljković, Aleksandra

Jelić-Ivanović, Zorana

Đerić, Mirjana
Milivojac, Tatjana
Fonović, Ursa Pecar
Marc, Janja
Kos, Janko
Cerne, Darko
Article (Published version)

Metadata
Show full item recordAbstract
Aim: We hypothesized that, in stable angina patients, atorvastatin therapy lowers the cathepsin S (CTSS) concentrations, as assessed non-invasively according to a plasma analysis. In addition, the low-density lipoprotein (LDL) and high-density lipoprotein (HDL) size and subclasses in the plasma were analysed to establish the association between CTSS and lipoprotein metabolism and determine whether this association is atorvastatin-sensitive. Methods: A total of 43 patients with stable angina received atorvastatin therapy (20 mg/day, 10 weeks). The plasma CTSS mRNA levels, CTSS protein concentrations and CTSS activity, as well as LDL and HDL size and subclasses, were analysed before and after treatment. Results: Atorvastatin treatment did not change the plasma CTSS mRNA levels, although it lowered the plasma CTSS concentrations and activity. An increased plasma CTSS concentration and activity were found to be associated with a more atherogenic LDL subclass profile (a decreased dominant L...DL size and increased percentage of small, dense LDL particles). The atorvastatin-induced CTSS-lowering effect was concomitant with an improvement in the LDL subclass profile, and the changes were found to be interrelated. Concomitant, interrelated changes in the CTSS levels and LDL subclass profiles were found in the LDL phenotype B patients only (a dominant LDL diameter of lt = 25.5 nm at the start of the study). In this subgroup, lowering of the plasma CTSS mRNA level also correlated with lowering of the proportion of small, dense LDL particles. Conclusions: Atorvastatin-induced CTSS-lowering and LDL subclass profile improvements in the plasma of LDL phenotype B patients with stable angina are concomitant and interrelated.
Keywords:
Atorvastatin / Cathepsin S / LDL subclasses / LDL phenotypeSource:
Journal of Atherosclerosis and Thrombosis, 2014, 21, 8, 868-877Publisher:
- Japan Atherosclerosis Soc, Tokyo
Projects:
- Ad Futura - Scientific and Educational Foundation of the Republic of Slovenia, the Slovenian Research Agency, Republic of Slovenia grant P4-0127
DOI: 10.5551/jat.21410
ISSN: 1340-3478
PubMed: 24727728