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Grafeneder J, Derhaschnig U, Eskandary F, Buchtele N, Sus N, Frank J, Jilma B, Schoergenhofer C. Micellar Curcumin: Pharmacokinetics and Effects on Inflammation Markers and PCSK-9 Concentrations in Healthy Subjects in a Double-Blind, Randomized, Active-Controlled, Crossover Trial. Mol Nutr Food Res 2022; 66:e2200139. [PMID: 36101515 PMCID: PMC9787856 DOI: 10.1002/mnfr.202200139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 07/23/2022] [Indexed: 12/30/2022]
Abstract
SCOPE Preclinical models have demonstrated the anti-inflammatory and lipid-lowering effects of curcumin. Innovative formulations have been developed to overcome the poor bioavailability of native curcumin. The study hypothesizes that the bioavailability of micellar curcumin is superior to native curcumin and investigates the potential anti-inflammatory and proprotein convertase subtilisin/kexin type 9 (PCSK9) concentration lowering effects. METHODS AND RESULTS In this double-blind, randomized, crossover trial, 15 healthy volunteers receive micellar or native curcumin (105 mg day-1 ) for 7 days with a ≥7 days washout period. Curcumin and metabolite concentrations are quantified by high-performance liquid chromatography with fluorescence detection (HPLC-FD), and pharmacokinetics are calculated. To analyze anti-inflammatory effects, blood samples (baseline, 2 h, 7 days) are stimulated with 50 ng mL-1 lipopolysaccharides (LPS). Interleukin (IL)-6, tumor-necrosis factor (TNF-α), and PCSK9 concentrations are quantified. Micellar curcumin demonstrates improved bioavailability (≈39-fold higher maximum concentrations, ≈14-fold higher area-under-the-time-concentration curve, p < 0.001) but does not reduce pro-inflammatory cytokines in the chosen model. Subjects receiving micellar curcumin have significantly lower PCSK9 concentrations (≈10% reduction) after 7 days compared to baseline (p = 0.038). CONCLUSION Micellar curcumin demonstrates an improved oral bioavailability but does not show anti-inflammatory effects in this model. Potential effects on PCSK9 concentrations warrant further investigation.
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Affiliation(s)
- Juergen Grafeneder
- Department of Emergency MedicineMedical University of ViennaVienna1090Austria
| | - Ulla Derhaschnig
- Department of Clinical PharmacologyMedical University of ViennaVienna1090Austria
| | - Farsad Eskandary
- Division of Nephrology, Department of Medicine IIIMedical University of ViennaVienna1090Austria
| | - Nina Buchtele
- Department of Medicine IMedical University of ViennaVienna1090Austria
| | - Nadine Sus
- Department of Food Biofunctionality (140b)Institute of Nutritional SciencesUniversity of HohenheimStuttgartGermany
| | - Jan Frank
- Department of Food Biofunctionality (140b)Institute of Nutritional SciencesUniversity of HohenheimStuttgartGermany
| | - Bernd Jilma
- Department of Clinical PharmacologyMedical University of ViennaVienna1090Austria
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Bonaventura A, Vecchié A, Ruscica M, Grossi F, Dentali F. PCSK9 as a new player in cancer: New opportunity or red herring? Curr Med Chem 2021; 29:960-969. [PMID: 34781861 DOI: 10.2174/0929867328666211115122324] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 09/16/2021] [Accepted: 09/30/2021] [Indexed: 11/22/2022]
Abstract
Initially described as a factor involved in liver regeneration and neuronal differentiation, proprotein convertase subtilisin/kexin type 9 (PCSK9) has become one of the key regulators of low-density lipoprotein cholesterol. Besides that, a number of studies have suggested PCSK9 may play a role in cancer biology. This is particularly true for gastroenteric (gastric and liver cancers) and lung cancers, where higher PCSK9 levels were associated with the increased ability of the tumor to develop and give metastasis as well as with reduced overall survival. Accordingly, monoclonal antibodies blocking PCSK9 were recently shown to synergize with immunotherapy in different types of cancers to achieve tumor growth suppression through an increased intratumoral infiltration of cytotoxic T cells. Anti-PCSK9 vaccines have been tested in animal models with encouraging results only in colon carcinoma. As most of this evidence is based on pre-clinical studies, this has led to some controversies and inconsistencies, thus suggesting that additional research is needed to clarify the topic. Finally, modulation of intracellular PCSK9 levels by silencing RNA (siRNA) may help understand the physiological and pathological mechanisms of PCSK9.
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Affiliation(s)
- Aldo Bonaventura
- Department of Internal Medicine, ASST Sette Laghi, Varese. Italy
| | | | - Massimiliano Ruscica
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan. Italy
| | - Francesco Grossi
- Medical Oncology Unit, Department of Medicine and Surgery, University of Insubria, ASST Sette Laghi, Varese. Italy
| | - Francesco Dentali
- Department of Medicine and Surgery, Insubria University, Varese. Italy
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Vecchié A, Bonaventura A, Meessen J, Novelli D, Minetti S, Elia E, Ferrara D, Ansaldo AM, Scaravilli V, Villa S, Ferla L, Caironi P, Latini R, Carbone F, Montecucco F. PCSK9 is associated with mortality in patients with septic shock: data from the ALBIOS study. J Intern Med 2021; 289:179-192. [PMID: 32686253 DOI: 10.1111/joim.13150] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 05/31/2020] [Accepted: 06/05/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Pro-protein convertase subtilisin/kexin 9 (PCSK9) is a proenzyme primarily known to regulate low-density lipoprotein receptor re-uptake on hepatocytes. Whether PCSK9 can concurrently trigger inflammation or not remains unclear. Here, we investigated the potential association between circulating levels of PCSK9 and mortality in patients with severe sepsis or septic shock. METHODS Plasma PCSK9 levels at days 1, 2 and 7 were measured in 958 patients with severe sepsis or septic shock previously enrolled in the Albumin Italian Outcome Sepsis (ALBIOS) trial. Correlations between levels of PCSK9 and pentraxin 3 (PTX3), a biomarker of disease severity, were evaluated with ranked Spearman's coefficients. Cox proportional hazards models were used to assess the association of PCSK9 levels at day 1 with 28- and 90-day mortality. RESULTS Median plasma PCSK9 levels were 278 [182-452] ng mL-1 on day 1. PCSK9 correlated positively with PTX3 at the three time-points, and patients with septic shock within the first quartile of PCSK9 showed higher levels of PTX3. Similar mortality rates were observed in patients with severe sepsis across PCSK9 quartiles. Patients with septic shock with lower PCSK9 levels on day 1 (within the first quartile) showed the highest 28- and 90-day mortality rate as compared to other quartiles. CONCLUSION In our sub-analysis of the ALBIOS trial, we found that patients with septic shock presenting with lower plasma PCSK9 levels experienced higher mortality rate. Further studies are warranted to better evaluate the pathophysiological role of PCSK9 in sepsis.
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Affiliation(s)
- A Vecchié
- From the, First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, Genoa, Italy.,Pauley Heart Center, Division of Cardiology, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - A Bonaventura
- From the, First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, Genoa, Italy.,Pauley Heart Center, Division of Cardiology, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - J Meessen
- Department of Cardiovascular Medicine, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - D Novelli
- Department of Cardiovascular Medicine, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - S Minetti
- From the, First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, Genoa, Italy.,IRCCS Ospedale Policlinico San Martino Genova - Italian Cardiovascular Network, Genoa, Italy
| | - E Elia
- From the, First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - D Ferrara
- From the, First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - A M Ansaldo
- From the, First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - V Scaravilli
- Department of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Milano, Italy
| | - S Villa
- Dipartimento di Anestesia e Rianimazione, Università degli Studi Milano Bicocca, ASST Monza, Monza, Italy
| | - L Ferla
- Dipartimento Emergenza Urgenza - Rianimazione, Azienda Socio Sanitaria Territoriale - Ovest Milanese, Ospedale di Legnano, Legnano, Italy
| | - P Caironi
- Department of Anesthesia and Critical Care, AOU San Luigi Gonzaga, Department of Oncology, University of Turin, Orbassano, Turin, Italy
| | - R Latini
- Department of Cardiovascular Medicine, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - F Carbone
- From the, First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, Genoa, Italy.,IRCCS Ospedale Policlinico San Martino Genova - Italian Cardiovascular Network, Genoa, Italy
| | - F Montecucco
- IRCCS Ospedale Policlinico San Martino Genova - Italian Cardiovascular Network, Genoa, Italy.,First Clinic of Internal Medicine, Department of Internal Medicine and Centre of Excellence for Biomedical Research (CEBR), University of Genoa, Genoa, Italy
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Low PCSK-9 levels Are Associated with Favorable Neurologic Function after Resuscitation from out of Hospital Cardiac Arrest. J Clin Med 2020; 9:jcm9082606. [PMID: 32796672 PMCID: PMC7465607 DOI: 10.3390/jcm9082606] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/27/2020] [Accepted: 08/07/2020] [Indexed: 11/26/2022] Open
Abstract
Endotoxemia after cardiopulmonary resuscitation (CPR) is associated with unfavorable outcome. Proprotein convertase subtilisin/kexin type-9 (PCSK–9) regulates low-density lipoprotein receptors, which mediate the hepatic uptake of endotoxins. We hypothesized that PCSK–9 concentrations are associated with neurological outcome in patients after CPR. Successfully resuscitated out-of-hospital cardiac arrest patients were included prospectively (n = 79). PCSK–9 levels were measured on admission, 12 h and 24 h thereafter, and after rewarming. The primary outcome was favorable neurologic function at day 30, defined by cerebral performance categories (CPC 1–2 = favorable vs. CPC 3–5 = unfavorable). Receiver operating characteristic curve analysis was used to identify the PCSK–9 level cut-off for optimal discrimination between favorable and unfavorable 30-day neurologic function. Logistic regression models were calculated to estimate the effect of PCSK–9 levels on the primary outcome, given as odds ratio (OR) and 95% confidence interval (95%CI). PCSK–9 levels on admission were significantly lower in patients with favorable 30-day neurologic function (median 158 ng/mL, (quartiles: 124–225) vs. 207 ng/mL (174–259); p = 0.019). The optimally discriminating PCSK–9 level cut-off was 165 ng/mL. In patients with PCSK–9 levels ≥ 165 ng/mL, the odds of unfavorable neurological outcome were 4.7-fold higher compared to those with PCSK–9 levels < 165 ng/mL. In conclusion, low PCSK–9 levels were associated with favorable neurologic function.
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