PMID- 36643795 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230117 IS - 2667-0895 (Electronic) IS - 2667-0909 (Print) IS - 2667-0895 (Linking) VI - 50 DP - 2022 Dec TI - The circulating furin-cleaved/mature PCSK9 ratio has a potential prognostic significance in statin-naive patients with acute ST elevation myocardial infarction. PG - 50-56 LID - 10.1016/j.athplu.2022.09.002 [doi] AB - BACKGROUND AND AIMS: Proprotein convertase subtilisin/kexin type 9 (PCSK9) circulates as mature and furin-cleaved forms, but their biological functions are uncertain. We investigated whether their levels associate with prognosis in patients with acute ST elevation myocardial infarction (STEMI). METHODS: We enrolled 160 statin-naive patients with acute STEMI and followed for 3 years. PCSK9 subtype levels were determined by an enzyme-linked immunosorbent assay before and at five timepoints up to 48 h after emergent coronary intervention. The occurrence of coronary and cardiac events was compared between subjects stratified by the PCSK9 level. RESULTS: One hundred and twenty-six patients completed 3 years of follow-up. In the acute phase, both PCSK9 subtype levels decreased, and thereafter increased from 6 to 48 h (mature: from 198 +/- 67 to 334 +/- 116 ng/mL, furin-cleaved: from 20 +/- 7 to 39 +/- 16 ng/mL, both p < 0.01). Major cardiac events occurred in 46 patients. The furin-cleaved/mature PCSK9 ratio at 48 h after coronary intervention predicted the likelihood of experiencing of events; patients in the third tertile had lower event-free survival than those in the first and second tetiles in Kaplan-Meier analysis (p = 0.004). Multivariate Cox regression analysis revealed that this ratio had a greater impact (HR: 1.92; 95% CI: 1.06-3.45, p = 0.03) on events than other known atherosclerosis risk factors. CONCLUSIONS: The furin-cleaved/mature PCSK9 ratio was associated with 3-year cardiovascular events in statin-naive patients with acute STEMI, suggesting a potential link between furin cleavage process of PCSK9 and its effect on prognosis. (249 words). CI - (c) 2022 The Authors. FAU - Sawaguchi, Jun AU - Sawaguchi J AD - Department of Cardiology, 1-1 Daigaku, Uchinada, 920-0293, Japan. FAU - Saeki, Yasuhiko AU - Saeki Y AD - Department of Cardiology, 1-1 Daigaku, Uchinada, 920-0293, Japan. FAU - Oda, Minako AU - Oda M AD - Department of Cardiology, 1-1 Daigaku, Uchinada, 920-0293, Japan. FAU - Takamura, Taka-Aki AU - Takamura TA AD - Department of Cardiology, 1-1 Daigaku, Uchinada, 920-0293, Japan. FAU - Fujibayashi, Kosuke AU - Fujibayashi K AD - Department of Cardiology, 1-1 Daigaku, Uchinada, 920-0293, Japan. FAU - Wakasa, Minoru AU - Wakasa M AD - Department of Cardiology, 1-1 Daigaku, Uchinada, 920-0293, Japan. FAU - Akao, Hironobu AU - Akao H AD - Department of Cardiology, 1-1 Daigaku, Uchinada, 920-0293, Japan. FAU - Kitayama, Michihiko AU - Kitayama M AD - Trans-catheter Cardiovascular Therapeutics, Kanazawa Medical University, 1-1 Daigaku, Uchinada, 920-0293, Japan. FAU - Kawai, Yasuyuki AU - Kawai Y AD - Department of Cardiology, 1-1 Daigaku, Uchinada, 920-0293, Japan. FAU - Kajinami, Kouji AU - Kajinami K AD - Department of Cardiology, 1-1 Daigaku, Uchinada, 920-0293, Japan. LA - eng PT - Journal Article DEP - 20220930 PL - Netherlands TA - Atheroscler Plus JT - Atherosclerosis plus JID - 9918249514806676 PMC - PMC9833232 OTO - NOTNLM OT - Acute myocardial infarction OT - Prognosis OT - Proprotein convertase subtilisin/kexin type 9 (PCSK9) COIS- The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/01/17 06:00 MHDA- 2023/01/17 06:01 PMCR- 2022/09/30 CRDT- 2023/01/16 02:47 PHST- 2022/05/26 00:00 [received] PHST- 2022/09/09 00:00 [revised] PHST- 2022/09/26 00:00 [accepted] PHST- 2023/01/16 02:47 [entrez] PHST- 2023/01/17 06:00 [pubmed] PHST- 2023/01/17 06:01 [medline] PHST- 2022/09/30 00:00 [pmc-release] AID - S2667-0895(22)00051-7 [pii] AID - 10.1016/j.athplu.2022.09.002 [doi] PST - epublish SO - Atheroscler Plus. 2022 Sep 30;50:50-56. doi: 10.1016/j.athplu.2022.09.002. eCollection 2022 Dec.