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Nankivell V, Vidanapathirana AK, Hoogendoorn A, Tan JTM, Verjans J, Psaltis PJ, Hutchinson MR, Gibson BC, Lu Y, Goldys E, Zheng G, Bursill CA. Targeting macrophages with multifunctional nanoparticles to detect and prevent atherosclerotic cardiovascular disease. Cardiovasc Res 2024; 120:819-838. [PMID: 38696700 PMCID: PMC11218693 DOI: 10.1093/cvr/cvae099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 02/29/2024] [Accepted: 04/02/2024] [Indexed: 05/04/2024] Open
Abstract
Despite the emergence of novel diagnostic, pharmacological, interventional, and prevention strategies, atherosclerotic cardiovascular disease remains a significant cause of morbidity and mortality. Nanoparticle (NP)-based platforms encompass diverse imaging, delivery, and pharmacological properties that provide novel opportunities for refining diagnostic and therapeutic interventions for atherosclerosis at the cellular and molecular levels. Macrophages play a critical role in atherosclerosis and therefore represent an important disease-related diagnostic and therapeutic target, especially given their inherent ability for passive and active NP uptake. In this review, we discuss an array of inorganic, carbon-based, and lipid-based NPs that provide magnetic, radiographic, and fluorescent imaging capabilities for a range of highly promising research and clinical applications in atherosclerosis. We discuss the design of NPs that target a range of macrophage-related functions such as lipoprotein oxidation, cholesterol efflux, vascular inflammation, and defective efferocytosis. We also provide examples of NP systems that were developed for other pathologies such as cancer and highlight their potential for repurposing in cardiovascular disease. Finally, we discuss the current state of play and the future of theranostic NPs. Whilst this is not without its challenges, the array of multifunctional capabilities that are possible in NP design ensures they will be part of the next frontier of exciting new therapies that simultaneously improve the accuracy of plaque diagnosis and more effectively reduce atherosclerosis with limited side effects.
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Affiliation(s)
- Victoria Nankivell
- Australian Research Council (ARC) Centre of Excellence for Nanoscale BioPhotonics (CNBP)
- Vascular Research Centre, Lifelong Health, South Australian Health and Medical Research Institute (SAHMRI), North Terrace, Adelaide, 5000, Australia
- Faculty of Health and Medical Science, The University of Adelaide, North Terrace, Adelaide, 5000, Australia
| | - Achini K Vidanapathirana
- Australian Research Council (ARC) Centre of Excellence for Nanoscale BioPhotonics (CNBP)
- Vascular Research Centre, Lifelong Health, South Australian Health and Medical Research Institute (SAHMRI), North Terrace, Adelaide, 5000, Australia
- Faculty of Health and Medical Science, The University of Adelaide, North Terrace, Adelaide, 5000, Australia
| | - Ayla Hoogendoorn
- Australian Research Council (ARC) Centre of Excellence for Nanoscale BioPhotonics (CNBP)
- Vascular Research Centre, Lifelong Health, South Australian Health and Medical Research Institute (SAHMRI), North Terrace, Adelaide, 5000, Australia
| | - Joanne T M Tan
- Vascular Research Centre, Lifelong Health, South Australian Health and Medical Research Institute (SAHMRI), North Terrace, Adelaide, 5000, Australia
- Faculty of Health and Medical Science, The University of Adelaide, North Terrace, Adelaide, 5000, Australia
| | - Johan Verjans
- Australian Research Council (ARC) Centre of Excellence for Nanoscale BioPhotonics (CNBP)
- Vascular Research Centre, Lifelong Health, South Australian Health and Medical Research Institute (SAHMRI), North Terrace, Adelaide, 5000, Australia
- Faculty of Health and Medical Science, The University of Adelaide, North Terrace, Adelaide, 5000, Australia
| | - Peter J Psaltis
- Australian Research Council (ARC) Centre of Excellence for Nanoscale BioPhotonics (CNBP)
- Vascular Research Centre, Lifelong Health, South Australian Health and Medical Research Institute (SAHMRI), North Terrace, Adelaide, 5000, Australia
- Faculty of Health and Medical Science, The University of Adelaide, North Terrace, Adelaide, 5000, Australia
| | - Mark R Hutchinson
- Australian Research Council (ARC) Centre of Excellence for Nanoscale BioPhotonics (CNBP)
- Faculty of Health and Medical Science, The University of Adelaide, North Terrace, Adelaide, 5000, Australia
| | - Brant C Gibson
- Australian Research Council (ARC) Centre of Excellence for Nanoscale BioPhotonics (CNBP)
- School of Science, RMIT University, Melbourne, Victoria, Australia
| | - Yiqing Lu
- Australian Research Council (ARC) Centre of Excellence for Nanoscale BioPhotonics (CNBP)
- School of Engineering, Macquarie University, Sydney, NSW, Australia
| | - Ewa Goldys
- Australian Research Council (ARC) Centre of Excellence for Nanoscale BioPhotonics (CNBP)
- Graduate School of Biomedical Engineering, University of New South Wales, High Street, NSW, 2052, Australia
| | - Gang Zheng
- Australian Research Council (ARC) Centre of Excellence for Nanoscale BioPhotonics (CNBP)
- Department of Medical Biophysics, University of Toronto, 101 College Street, Toronto, M5G 1L7, Canada
| | - Christina A Bursill
- Australian Research Council (ARC) Centre of Excellence for Nanoscale BioPhotonics (CNBP)
- Vascular Research Centre, Lifelong Health, South Australian Health and Medical Research Institute (SAHMRI), North Terrace, Adelaide, 5000, Australia
- Faculty of Health and Medical Science, The University of Adelaide, North Terrace, Adelaide, 5000, Australia
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Wang S, He H, Mao Y, Zhang Y, Gu N. Advances in Atherosclerosis Theranostics Harnessing Iron Oxide-Based Nanoparticles. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308298. [PMID: 38368274 PMCID: PMC11077671 DOI: 10.1002/advs.202308298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 02/06/2024] [Indexed: 02/19/2024]
Abstract
Atherosclerosis, a multifaceted chronic inflammatory disease, has a profound impact on cardiovascular health. However, the critical limitations of atherosclerosis management include the delayed detection of advanced stages, the intricate assessment of plaque stability, and the absence of efficacious therapeutic strategies. Nanotheranostic based on nanotechnology offers a novel paradigm for addressing these challenges by amalgamating advanced imaging capabilities with targeted therapeutic interventions. Meanwhile, iron oxide nanoparticles have emerged as compelling candidates for theranostic applications in atherosclerosis due to their magnetic resonance imaging capability and biosafety. This review delineates the current state and prospects of iron oxide nanoparticle-based nanotheranostics in the realm of atherosclerosis, including pivotal aspects of atherosclerosis development, the pertinent targeting strategies involved in disease pathogenesis, and the diagnostic and therapeutic roles of iron oxide nanoparticles. Furthermore, this review provides a comprehensive overview of theranostic nanomedicine approaches employing iron oxide nanoparticles, encompassing chemical therapy, physical stimulation therapy, and biological therapy. Finally, this review proposes and discusses the challenges and prospects associated with translating these innovative strategies into clinically viable anti-atherosclerosis interventions. In conclusion, this review offers new insights into the future of atherosclerosis theranostic, showcasing the remarkable potential of iron oxide-based nanoparticles as versatile tools in the battle against atherosclerosis.
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Affiliation(s)
- Shi Wang
- State Key Laboratory of Digital Medical EngineeringJiangsu Key Laboratory for Biomaterials and DevicesSchool of Biological Sciences & Medical EngineeringSoutheast UniversityNanjing210009P. R. China
| | - Hongliang He
- State Key Laboratory of Digital Medical EngineeringJiangsu Key Laboratory for Biomaterials and DevicesSchool of Biological Sciences & Medical EngineeringSoutheast UniversityNanjing210009P. R. China
| | - Yu Mao
- School of MedicineNanjing UniversityNanjing210093P. R. China
| | - Yu Zhang
- State Key Laboratory of Digital Medical EngineeringJiangsu Key Laboratory for Biomaterials and DevicesSchool of Biological Sciences & Medical EngineeringSoutheast UniversityNanjing210009P. R. China
| | - Ning Gu
- School of MedicineNanjing UniversityNanjing210093P. R. China
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3
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Marinho LL, Rached FH, Morikawa AT, Tavoni TM, Cardoso APT, Torres RVA, Assuncao AN, Serrano CV, Nomura CH, Maranhão RC. Safety and possible anti-inflammatory effect of paclitaxel associated with LDL-like nanoparticles (LDE) in patients with chronic coronary artery disease: a double-blind, placebo-controlled pilot study. Front Cardiovasc Med 2024; 11:1342832. [PMID: 38450375 PMCID: PMC10915057 DOI: 10.3389/fcvm.2024.1342832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 02/13/2024] [Indexed: 03/08/2024] Open
Abstract
Introduction Studies in cholesterol-fed rabbits showed that anti-proliferative chemotherapeutic agents such as paclitaxel associated with solid lipid nanoparticles (LDE) have marked anti-atherosclerotic effects. In addition, association with LDE nearly abolishes paclitaxel toxicity. We investigated whether treatment with LDE-paclitaxel changes plaque progression by coronary CT angiography and is safe in patients with chronic coronary artery disease. Methods We conducted a prospective, randomized, double-blind, placebo-controlled pilot study in patients with multi-vessel chronic coronary artery disease. Patients were randomized to receive IV infusions of LDE-paclitaxel (paclitaxel dose: 175 mg/m2 body surface) or LDE alone (placebo group), administered every 3 weeks for 18 weeks. All participants received guideline-directed medical therapy. Clinical and laboratory safety evaluations were made at baseline and every 3 weeks until the end of the study. Analysis of inflammatory biomarkers and coronary CTA was also performed at baseline and 4 weeks after treatment. Results Forty patients aged 65.6 ± 8 years, 20 in LDE-paclitaxel and 20 in placebo group were enrolled. Among those, 58% had diabetes, 50% had myocardial infarction, and 91% were in use of statin and aspirin. Baseline demographics, risk factors, and laboratory results were not different between groups. In all patients, no clinical or laboratory toxicities were observed. From the baseline to the end of follow-up, there was a non-significant trend toward a decrease in IL-6 levels and hsCRP in the LDE-paclitaxel group (-16% and -28%, respectively), not observed in placebo. Regarding plaque progression analysis, variation in plaque parameter values was wide, and no difference between groups was observed. Conclusion In patients with multivessel chronic coronary artery disease and optimized medical therapy, LDE-paclitaxel was safe and showed clues of potential benefits in reducing inflammatory biomarkers. Clinical Trial Registration https://clinicaltrials.gov/study/NCT04148833, identifier (NCT04148833).
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Affiliation(s)
- Lucas Lage Marinho
- Lipid Metabolism Laboratory, Instituto do Coracao (InCor) Universidade de Sao Paulo, São Paulo, Brazil
| | - Fabiana Hanna Rached
- Department of Cardiopneumology, Instituto do Coracao (InCor) Universidade de Sao Paulo, São Paulo, Brazil
| | - Aleksandra Tiemi Morikawa
- Lipid Metabolism Laboratory, Instituto do Coracao (InCor) Universidade de Sao Paulo, São Paulo, Brazil
| | - Thauany Martins Tavoni
- Lipid Metabolism Laboratory, Instituto do Coracao (InCor) Universidade de Sao Paulo, São Paulo, Brazil
| | | | | | | | - Carlos Vicente Serrano
- Department of Cardiopneumology, Instituto do Coracao (InCor) Universidade de Sao Paulo, São Paulo, Brazil
| | - Cesar Higa Nomura
- Department of Radiology, Instituto do Coracao (InCor) Universidade de Sao Paulo, São Paulo, Brazil
| | - Raul Cavalcante Maranhão
- Lipid Metabolism Laboratory, Instituto do Coracao (InCor) Universidade de Sao Paulo, São Paulo, Brazil
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Li D, Son Y, Jang M, Wang S, Zhu W. Nanoparticle Based Cardiac Specific Drug Delivery. BIOLOGY 2023; 12:biology12010082. [PMID: 36671774 PMCID: PMC9856055 DOI: 10.3390/biology12010082] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 01/02/2023] [Accepted: 01/03/2023] [Indexed: 01/06/2023]
Abstract
Heart failure secondary to myocardial injuries is a leading cause of death worldwide. Recently, a growing number of novel therapies have emerged for injured myocardium repairment. However, delivering therapeutic agents specifically to the injured heart remains a significant challenge. Nanoparticles are the most commonly used vehicles for targeted drug delivery. Various nanoparticles have been synthesized to deliver drugs and other therapeutic molecules to the injured heart via passive or active targeting approaches, and their targeting specificity and therapeutic efficacies have been investigated. Here, we summarized nanoparticle-based, cardiac-specific drug delivery systems, their potency for treating heart diseases, and the mechanisms underlying these cardiac-targeting strategies. We also discussed the clinical studies that have employed nanoparticle-based cardiac-specific drug delivery.
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Affiliation(s)
- Dong Li
- Department of Cardiovascular Diseases, Physiology and Biomedical Engineering, Center for Regenerative Medicine, Mayo Clinic Arizona, Scottsdale, AZ 85259, USA
- Department of Cardiology, Dongfang Hospital, The Second Affiliated Hospital of Beijing University of Chinese Medicine, Beijing 100078, China
| | - Yura Son
- Department of Cardiovascular Diseases, Physiology and Biomedical Engineering, Center for Regenerative Medicine, Mayo Clinic Arizona, Scottsdale, AZ 85259, USA
| | - Michelle Jang
- Department of Cardiovascular Diseases, Physiology and Biomedical Engineering, Center for Regenerative Medicine, Mayo Clinic Arizona, Scottsdale, AZ 85259, USA
- Ira A. Fulton Schools of Engineering, Arizona State University, Tempe, AZ 85281, USA
| | - Shu Wang
- College of Health Solutions, Arizona State University, Phoenix, AZ 85004, USA
- Correspondence: (S.W.); (W.Z.)
| | - Wuqiang Zhu
- Department of Cardiovascular Diseases, Physiology and Biomedical Engineering, Center for Regenerative Medicine, Mayo Clinic Arizona, Scottsdale, AZ 85259, USA
- Correspondence: (S.W.); (W.Z.)
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5
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Albuquerque CI, Tavares ER, Guido MC, Carvalho PO, Tavoni TM, Lopes NM, Silva BMDO, Jensen L, Stolf NAG, Maranhão RC. Treatment of rabbits with atherosclerosis induced by cholesterol feeding with daunorubicin associated to a lipid core nanoparticle (LDE). J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2022.104067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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6
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Xu H, Li S, Liu YS. Nanoparticles in the diagnosis and treatment of vascular aging and related diseases. Signal Transduct Target Ther 2022; 7:231. [PMID: 35817770 PMCID: PMC9272665 DOI: 10.1038/s41392-022-01082-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/23/2022] [Accepted: 06/26/2022] [Indexed: 11/09/2022] Open
Abstract
Aging-induced alternations of vasculature structures, phenotypes, and functions are key in the occurrence and development of vascular aging-related diseases. Multiple molecular and cellular events, such as oxidative stress, mitochondrial dysfunction, vascular inflammation, cellular senescence, and epigenetic alterations are highly associated with vascular aging physiopathology. Advances in nanoparticles and nanotechnology, which can realize sensitive diagnostic modalities, efficient medical treatment, and better prognosis as well as less adverse effects on non-target tissues, provide an amazing window in the field of vascular aging and related diseases. Throughout this review, we presented current knowledge on classification of nanoparticles and the relationship between vascular aging and related diseases. Importantly, we comprehensively summarized the potential of nanoparticles-based diagnostic and therapeutic techniques in vascular aging and related diseases, including cardiovascular diseases, cerebrovascular diseases, as well as chronic kidney diseases, and discussed the advantages and limitations of their clinical applications.
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Affiliation(s)
- Hui Xu
- Department of Geriatrics, The Second Xiangya Hospital of Central South University, 410011, Changsha, Hunan, China.,Institute of Aging and Age-related Disease Research, Central South University, 410011, Changsha, Hunan, China
| | - Shuang Li
- Department of Geriatrics, The Second Xiangya Hospital of Central South University, 410011, Changsha, Hunan, China.,Institute of Aging and Age-related Disease Research, Central South University, 410011, Changsha, Hunan, China
| | - You-Shuo Liu
- Department of Geriatrics, The Second Xiangya Hospital of Central South University, 410011, Changsha, Hunan, China. .,Institute of Aging and Age-related Disease Research, Central South University, 410011, Changsha, Hunan, China.
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7
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Use of paclitaxel carried in solid lipid nanoparticles to prevent peritoneal fibrosis in rats. PLoS One 2022; 17:e0268197. [PMID: 35522621 PMCID: PMC9075628 DOI: 10.1371/journal.pone.0268197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 04/24/2022] [Indexed: 11/24/2022] Open
Abstract
Background Progressive fibrous thickening of peritoneal membrane (PM) is a major complication of long-term peritoneal dialysis. TGF-β/SMAD pathway activation, inflammation and neoangiogenesis have an important role in PM changes induced by peritoneal dialysis. Here, we investigated the effects of paclitaxel (PTX) carried in lipid core nanoparticles (LDE) on the development of peritoneal fibrosis (PF) in rats. Methods To induce PF, 21 male Wistar rats (300-350g) were injected with chlorhexidine gluconate for 15 consecutive days and randomly assigned to three groups: 1)PF, n = 5: no treatment; 2)LDE, n = 8: treated with LDE only, 3/3 days during 15 days; 3)LDE-PTX, n = 8: treated with PTX (4mg/kg) associated with LDE, 3/3 days during 15 days. A Control group without PF induction (n = 5) was designed, received saline solution, 3/3 days. Peritoneum function tests were performed, and anterior abdominal wall samples of the PM were collected for analyses of peritoneal thickness, immunohistochemitry, and gene expression. Results LDE-PTX treatment preserved the membrane function, maintaining the ultrafiltration rate and mass transfer of glucose at normal levels. LDE-PTX also prevented PM thickening induced by chlorhexidine gluconate injections. LDE-PTX treatment reduced the number of myofibroblasts infiltrating PM and inhibited the cell proliferation. Gene expression of fibronectin, FSP-1, VEGF, TGF-β, and SMAD3 were reduced by LDE-PTX. Conclusions LDE-PTX was effective to prevent development of PF and preserve the PM filtration capacity in this rat model, with clear-cut actions on pro-fibrotic mechanisms. Thus, LDE-PTX can be candidate for future clinical trials as adjuvant to peritoneal dialysis to prevent PF development, since this preparation is devoid of toxicity as shown previously.
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8
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Shimada T, Shima Y, Takahashi K, Miura K, Takamatsu M, Ikuta A, Habara S, Tanaka H, Goto T, Izumiya Y, Kadota K. Delayed stenosis regression after drug-coated balloon angioplasty for femoropopliteal artery lesions. Heart Vessels 2021; 37:730-737. [PMID: 34674001 DOI: 10.1007/s00380-021-01970-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 10/15/2021] [Indexed: 11/30/2022]
Abstract
Paclitaxel has the potential for inducing lumen enlargement by vessel enlargement, healing of dissection, and plaque regression. This study was carried out to determine the possibility of and the relevant factors of delayed stenosis regression after drug-coated balloon (DCB) angioplasty for femoropopliteal (FP) artery lesions. A total 105 de novo FP lesions were finalized with DCB angioplasty in our institute between May 2018 and June 2020. Among them, cases in which residual stenosis was detected by duplex ultrasonography (DUS) after the procedure were included in this study. Significant stenosis was defined as peak systolic velocity ratio ≥ 2.4 by DUS. Follow-up DUS was routinely performed 6 months after the procedure, and we defined cases without stenosis as cases of delayed stenosis regression according to the follow-up DUS. DUS showed that 26 (25.5%) of 102 lesions had residual stenosis after DCB angioplasty, and delayed stenosis regression was observed in 12 (57.1%) of 21 lesions 6 months after the procedure. The percentage of lesions containing calcified plaque as detected by intravascular ultrasound analysis was significantly higher in the non-regression group than in the regression group (18.2% vs. 77.8%, p = 0.02). Vessel remodeling and dissection patterns were not associated with delayed stenosis regression. The results of our analyses indicate that delayed stenosis regression may occur after DCB angioplasty for FP lesions in more than half of cases with residual stenosis. Delayed stenosis regression may be difficult in cases of calcified lesions.
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Affiliation(s)
- Takenobu Shimada
- Department of Cardiovascular Medicine, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan.
- Department of Cardiovascular Medicine, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi Abenoku, Osaka, 545-8585, Japan.
| | - Yuki Shima
- Department of Cardiovascular Medicine, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan
| | - Kotaro Takahashi
- Department of Cardiovascular Medicine, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan
| | - Katsuya Miura
- Department of Cardiovascular Medicine, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan
| | - Makoto Takamatsu
- Department of Cardiovascular Medicine, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan
| | - Akihiro Ikuta
- Department of Cardiovascular Medicine, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan
| | - Seiji Habara
- Department of Cardiovascular Medicine, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan
| | - Hiroyuki Tanaka
- Department of Cardiovascular Medicine, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan
| | - Tsuyoshi Goto
- Department of Cardiovascular Medicine, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan
| | - Yasuhiro Izumiya
- Department of Cardiovascular Medicine, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi Abenoku, Osaka, 545-8585, Japan
| | - Kazushige Kadota
- Department of Cardiovascular Medicine, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan
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Sogabe K, Koide M, Fukui K, Kato Y, Kitajima H, Akabame S, Zen K, Nakamura T, Matoba S. Optical coherence tomography analysis of late lumen enlargement after paclitaxel-coated balloon angioplasty for de-novo coronary artery disease. Catheter Cardiovasc Interv 2021; 98:E35-E42. [PMID: 33369836 DOI: 10.1002/ccd.29435] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 11/05/2020] [Accepted: 11/29/2020] [Indexed: 11/10/2022]
Abstract
BACKGROUND Paclitaxel-coated balloon angioplasty for de-novo coronary artery lesions causes late lumen enlargement (LLE), however, the mechanisms and predictors of LLE have not been elucidated. METHODS AND RESULTS We retrospectively analyzed 91 consecutive patients with 95 de-novo coronary lesions, who underwent paclitaxel-coated balloon angioplasty without stenting from August 2018 to July 2019 as well as follow-up coronary angiography and optical coherence tomography (OCT). The mean follow-up duration was 8.2 ± 2.9 months. The target lesion revascularization rate was 7.3%. OCT demonstrated LLE in 50.5% of lesions. The lesions with LLE had a higher incidence of vessel enlargement (76.6 vs. 29.2%, p < .01), regression of plaque or dissection flap (55.3 vs. 10.4%, p < 0.01; 40.4 vs. 14.6%, p < .01, respectively), and reattachment and healing of dissection flaps (74.5 vs. 27.1%, p < .01) compared with those without LLE. Preprocedure thick-cap fibroatheroma plaques and postprocedure deep dissection reaching the tunica media were positive predictors of LLE (hazard ratio, HR 3.74 [1.93-7.25], p < .001; HR 2.04 [1.02-4.05], p < .05, respectively). CONCLUSIONS OCT analysis after paclitaxel-coated balloon treatment of de-novo coronary artery lesions revealed that the mechanism of LLE was associated with vessel enlargement, healing of dissection flaps, and regression of plaque or dissection flap. Preprocedure thick-cap fibroatheroma plaques and postprocedure deep dissection reaching the tunica media on OCT were predictors of LLE.
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Affiliation(s)
- Koji Sogabe
- Department of Cardiovascular Medicine, Kyoto Okamoto Memorial Hospital, Kyoto, Japan.,Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Masahiro Koide
- Department of Cardiovascular Medicine, Kyoto Okamoto Memorial Hospital, Kyoto, Japan
| | - Kento Fukui
- Department of Cardiovascular Medicine, Kyoto Okamoto Memorial Hospital, Kyoto, Japan
| | - Yukinori Kato
- Department of Cardiovascular Medicine, Kyoto Okamoto Memorial Hospital, Kyoto, Japan.,Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroki Kitajima
- Department of Cardiovascular Medicine, Kyoto Okamoto Memorial Hospital, Kyoto, Japan
| | - Satoshi Akabame
- Department of Cardiovascular Medicine, Kyoto Okamoto Memorial Hospital, Kyoto, Japan
| | - Kan Zen
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takeshi Nakamura
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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10
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Prilepskii AY, Serov NS, Kladko DV, Vinogradov VV. Nanoparticle-Based Approaches towards the Treatment of Atherosclerosis. Pharmaceutics 2020; 12:E1056. [PMID: 33167402 PMCID: PMC7694323 DOI: 10.3390/pharmaceutics12111056] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 10/30/2020] [Accepted: 11/02/2020] [Indexed: 12/18/2022] Open
Abstract
Atherosclerosis, being an inflammation-associated disease, represents a considerable healthcare problem. Its origin remains poorly understood, and at the same time, it is associated with extensive morbidity and mortality worldwide due to myocardial infarctions and strokes. Unfortunately, drugs are unable to effectively prevent plaque formation. Systemic administration of pharmaceuticals for the inhibition of plaque destabilization bears the risk of adverse effects. At present, nanoscience and, in particular, nanomedicine has made significant progress in both imaging and treatment of atherosclerosis. In this review, we focus on recent advances in this area, discussing subjects such as nanocarriers-based drug targeting principles, approaches towards the treatment of atherosclerosis, utilization of theranostic agents, and future prospects of nanoformulated therapeutics against atherosclerosis and inflammatory diseases. The focus is placed on articles published since 2015 with additional attention to research completed in 2019-2020.
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Affiliation(s)
| | | | | | - Vladimir V. Vinogradov
- International Institute “Solution Chemistry of Advanced Materials and Technologies”, ITMO University, 191002 Saint Petersburg, Russia; (A.Y.P.); (N.S.S.); (D.V.K.)
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11
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Shimada T, Habara S, Tanaka H, Kadota K. Plaque volume reduction after drug-coated balloon angioplasty for superficial femoral artery lesion. Cardiovasc Interv Ther 2020; 36:263-265. [PMID: 32406033 DOI: 10.1007/s12928-020-00672-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 05/09/2020] [Indexed: 11/30/2022]
Abstract
Paclitaxel has a potentially beneficial effect on atherosclerotic plaque volume reduction; however, data about plaque volume reduction in real-world practice are scarce. We herein report a case whose plaque volume of superficial femoral artery was analyzed using high-definition intravascular ultrasound just after endovascular treatment using drug-coated balloon and at 6 months after the procedure. From analysis using a quantitative intravascular ultrasound analysis system, the lumen volume was enlarged (from 2909.2 to 4944.1 mm3) as a result of not only vessel volume enlargement (from 7242.0 to 8296.3 mm3) but also plaque volume reduction (from 4332.8 to 3352.2 mm3).
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Affiliation(s)
- Takenobu Shimada
- Department of Cardiology, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan.
| | - Seiji Habara
- Department of Cardiology, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan
| | - Hiroyuki Tanaka
- Department of Cardiology, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan
| | - Kazushige Kadota
- Department of Cardiology, Kurashiki Central Hospital, 1-1-1 Miwa, Kurashiki, Okayama, 710-8602, Japan
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12
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Yu X, Guan W, Zhang Y, Deng Q, Li J, Ye H, Deng S, Han W, Yu Y. Large-scale gene analysis of rabbit atherosclerosis to discover new biomarkers for coronary artery disease. Open Biol 2020; 9:180238. [PMID: 30958112 PMCID: PMC6367139 DOI: 10.1098/rsob.180238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Atherosclerosis is the pathological basis of coronary artery disease (CAD) and causes high mortality. Thus, early detection is thought to be crucial in reducing the risk of CAD. Uncovering the mechanisms of the progression and regression of atherosclerosis will provide insights into discovering novel biomarkers to identify subjects at risk for CAD and improve prevention. We established atherosclerosis progression and regression in a rabbit model. Then, we extracted mRNA of the abdominal aorta from control, model and recovery groups to perform gene chip analysis. Candidate biomarkers were screened by large-scale gene analysis and validated in patients with CAD or with CAD recovery by ELISA. The differentially expressed genes in the progression and regression of atherosclerosis were mainly enriched in four clusters. Genes associated with inflammation and extracellular matrix were returned to normal or close-to-normal levels much earlier than genes associated with metabolism and sarcoplasmic proliferation, and they were maintained downregulated or upregulated after feeding a normal diet. We then selected four candidate biomarkers and found that lipoprotein lipase (LPL), bone morphogenetic protein 7 and somatostatin concentrations could indicate CAD diagnosis. In addition, LPL and macrophage cationic peptide 2 can be indicators of the prognosis of CAD. Molecular changes during the progression and regression of atherosclerosis in rabbits were revealed, and candidate regulators were identified. The identified factors could be used as novel biomarkers and targets for improving the diagnosis and prognosis of human CAD in the future.
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Affiliation(s)
- Xiaolan Yu
- 1 Shanghai Municipality Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University , Shanghai , People's Republic of China
| | - Wen Guan
- 3 Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University , GuangZhou , People's Republic of China
| | - Yang Zhang
- 1 Shanghai Municipality Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University , Shanghai , People's Republic of China
| | - Qing Deng
- 1 Shanghai Municipality Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University , Shanghai , People's Republic of China
| | - Jingjing Li
- 2 Laboratory of Regeneromics, School of Pharmacy, Shanghai Jiao Tong University , Shanghai , People's Republic of China
| | - Hao Ye
- 2 Laboratory of Regeneromics, School of Pharmacy, Shanghai Jiao Tong University , Shanghai , People's Republic of China
| | - Shaorong Deng
- 2 Laboratory of Regeneromics, School of Pharmacy, Shanghai Jiao Tong University , Shanghai , People's Republic of China
| | - Wei Han
- 2 Laboratory of Regeneromics, School of Pharmacy, Shanghai Jiao Tong University , Shanghai , People's Republic of China
| | - Yan Yu
- 1 Shanghai Municipality Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University , Shanghai , People's Republic of China
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13
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Meneghini BC, Tavares ER, Guido MC, Tavoni TM, Stefani HA, Kalil-Filho R, Maranhão RC. Lipid core nanoparticles as vehicle for docetaxel reduces atherosclerotic lesion, inflammation, cell death and proliferation in an atherosclerosis rabbit model. Vascul Pharmacol 2019; 115:46-54. [DOI: 10.1016/j.vph.2019.02.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 01/17/2019] [Accepted: 02/19/2019] [Indexed: 11/26/2022]
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14
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Plasma and erythrocyte ω-3 and ω-6 fatty acids are associated with multiple inflammatory and oxidative stress biomarkers in breast cancer. Nutrition 2019; 58:194-200. [DOI: 10.1016/j.nut.2018.07.115] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 06/23/2018] [Accepted: 07/17/2018] [Indexed: 12/18/2022]
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15
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Tan KX, Pan S, Jeevanandam J, Danquah MK. Cardiovascular therapies utilizing targeted delivery of nanomedicines and aptamers. Int J Pharm 2019; 558:413-425. [PMID: 30660748 DOI: 10.1016/j.ijpharm.2019.01.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 01/03/2019] [Accepted: 01/05/2019] [Indexed: 01/01/2023]
Abstract
Cardiovascular ailments are the foremost trigger of death in the world today, including myocardial infarction and ischemic heart diseases. To date, extraordinary measures have been prescribed, from the perspectives of both conventional medical therapies and surgeries, to enforce cardiac cell regeneration post cardiac traumas, albeit with limited long-term success. The prospects of successful heart transplants are also grim, considering exorbitant costs and unavailability of suitable donors in most cases. From the perspective of cardiac revascularization, use of nanoparticles and nanoparticle mediated targeted drug delivery have garnered substantial attention, attributing to both active and passive heart targeting, with enhanced target specificity and sensitivity. This review focuses on this aspect, while outlining the progress in targeted delivery of nanomedicines in the prognosis and subsequent therapy of cardiovascular disorders, and recapitulating the benefits and intrinsic challenges associated with the incorporation of nanoparticles. This article categorically provides an overview of nanoparticle-mediated targeted delivery systems and their implications in handling cardiovascular diseases, including their intrinsic benefits and encountered procedural trials and challenges. Additionally, the solicitations of aptamers in targeted drug delivery with identical objectives, are presented. This includes a detailed appraisal on various aptamer-navigated nanoparticle targeted delivery platforms in the diagnosis and treatment of cardiovascular maladies. Despite a few impending challenges, subject to additional investigations, both nanoparticles as well as aptamers show a high degree of promise, and pose as the next generation of drug delivery vehicles, in targeted cardiovascular therapy.
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Affiliation(s)
- Kei Xian Tan
- Department of Chemical Engineering, Curtin University of Technology, 98009 Sarawak, Malaysia.
| | - Sharadwata Pan
- School of Life Sciences Weihenstephan, Technical University of Munich, 85354 Freising, Germany.
| | - Jaison Jeevanandam
- Department of Chemical Engineering, Curtin University of Technology, 98009 Sarawak, Malaysia.
| | - Michael K Danquah
- Department of Chemical Engineering, University of Tennessee, Chattanooga, TN 37403, United States.
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16
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Bedin A, Maranhão RC, Tavares ER, Carvalho PO, Baracat EC, Podgaec S. Nanotechnology for the treatment of deep endometriosis: uptake of lipid core nanoparticles by LDL receptors in endometriotic foci. Clinics (Sao Paulo) 2019; 74:e989. [PMID: 31291391 PMCID: PMC6607935 DOI: 10.6061/clinics/2019/e989] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 03/19/2019] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVE Rapidly dividing cells in multiple types of cancer and inflammatory diseases undergo high low density lipoprotein (LDL) uptake for membrane synthesis, and coupling an LDL-like nanoemulsion, containing lipid nanoparticles (LDE) to a chemotherapeutic agent efficiently targets these cells without significant systemic effects. This was a prospective exploratory study that evaluated the uptake of a radioactively labeled LDE emulsion by receptors of endometriotic foci and the capacity of the LDE for cellular internalization. METHODS The lipid profile of each patient was determined before surgery, and labeled LDE were injected into fourteen patients with intestinal or nonintestinal endometriosis. The radioactivity of each tissue sample (intestinal endometriosis, nonintestinal endometriosis, healthy peritoneum, or topical endometrium) was measured. RESULTS The group with intestinal endometriosis presented higher levels of plasma LDL but lower LDE uptake by foci than the nonintestinal group, suggesting less cell division and more fibrosis. The uptake of LDE was highest in the topical endometrium, followed by the healthy peritoneum, and lowest in the endometriotic lesion. Since the endometriotic foci showed significant LDE uptake, there was likely increased consumption of LDL by these cells, similar to cells in cancers and inflammatory diseases. Plasma cholesterol levels had no influence on LDE uptake, which showed that the direct delivery of the nanoemulsion to target tissues was independent of serum lipoproteins. There were no significant differences in the parameters (p>0.01) because of the small sample size, but the findings were similar to those of previous studies. CONCLUSION Nanotechnology is a promising therapeutic option for surgery and hormonal blockage for deep endometriosis, with a lower complication rate and no systemic side effects.
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Affiliation(s)
- Alessandra Bedin
- Departamento de Ginecologia e Obstetricia, Faculdade de Medicina (FMUSP), Universidade de Sao Paulo, Sao Paulo, SP, BR
- Hospital Israelita Albert Einstein, Sao Paulo, SP, BR
- *Corresponding author. E-mail:
| | - Raul C Maranhão
- Laboratorio de Metabolismo de Lipides, Instituto do Coracao (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Elaine R Tavares
- Laboratorio de Metabolismo de Lipides, Instituto do Coracao (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Priscila O Carvalho
- Laboratorio de Metabolismo de Lipides, Instituto do Coracao (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Edmund C Baracat
- Departamento de Ginecologia e Obstetricia, Faculdade de Medicina (FMUSP), Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Sérgio Podgaec
- Departamento de Ginecologia e Obstetricia, Faculdade de Medicina (FMUSP), Universidade de Sao Paulo, Sao Paulo, SP, BR
- Hospital Israelita Albert Einstein, Sao Paulo, SP, BR
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17
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Gomes FLT, Maranhão RC, Tavares ER, Carvalho PO, Higuchi ML, Mattos FR, Pitta FG, Hatab SA, Kalil-Filho R, Serrano CV. Regression of Atherosclerotic Plaques of Cholesterol-Fed Rabbits by Combined Chemotherapy With Paclitaxel and Methotrexate Carried in Lipid Core Nanoparticles. J Cardiovasc Pharmacol Ther 2018; 23:561-569. [PMID: 29779420 DOI: 10.1177/1074248418778836] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In previous studies, it was demonstrated that lipid core nanoparticles (LDE) resemble the low-density lipoprotein structure and carrying the antiproliferative agent paclitaxel (PTX) strongly reduced atherosclerosis lesions induced in rabbits by cholesterol feeding. Currently, the aim was to verify whether combining LDE-PTX treatment with methotrexate (MTX) associated with LDE (LDE-MTX) could accelerate the atherosclerosis regression attained with single LDE-PTX treatment, after withdrawing the cholesterol feeding. Thirty-eight rabbits were fed 1% cholesterol chow for 8 weeks. Six of these rabbits were then euthanized for analyses of the aorta (controls). In the remaining rabbits, cholesterol feeding was withdrawn, and those 32 animals were allocated to 3 groups submitted to different 8-week intravenous treatments, all once/week: LDE-PTX (n = 10; 4 mg/kg), LDE-PTX + LDE-MTX (n = 11; 4 mg/kg), and LDE-alone (n = 11). Rabbits were then euthanized and aortas were excised for morphometric, immunohistochemical, and gene expression analyses. After cholesterol feeding withdrawal, in comparison with LDE-alone group, both LDE-PTX and LDE-PTX + LDE-MTX treatments had the ability to increase the regression of plaque areas: -49% in LDE-PTX and -59% for LDE-PTX + LDE-MTX. However, only LDE-PTX + LDE-MTX treatment elicited reduction in the intima area, estimated in -57%. Macrophage presence in aortic lesions was reduced 48% by LDE-PTX and 43% by LDE-PTX + LDE-MTX treatment. Matrix metalloproteinase 9 was reduced by either LDE-PTX (74%) or LDE-PTX + LDE-MTX (78%). Tumor necrosis factor α gene expression was reduced 65% by LDE-PTX and 79% by LDE-PTX + LDE-MTX. In conclusion, treatment with LDE-PTX indeed accelerated plaque reduction after cholesterol feeding; LDE-PTX + LDE-MTX further increased this effect, without any observed toxicity. These results pave the way for the use of combined chemotherapy to achieve stronger effects on aggravated, highly inflamed atherosclerotic lesions.
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Affiliation(s)
- Fernando L T Gomes
- 1 Heart Institute (InCor) of the Medical School Hospital University of São Paulo, São Paulo, Brazil.,2 Hospital Cassiano Antônio de Moraes, Federal University of Espírito Santo, Espírito Santo, Brazil
| | - Raul C Maranhão
- 1 Heart Institute (InCor) of the Medical School Hospital University of São Paulo, São Paulo, Brazil.,3 Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Elaine R Tavares
- 1 Heart Institute (InCor) of the Medical School Hospital University of São Paulo, São Paulo, Brazil
| | - Priscila O Carvalho
- 1 Heart Institute (InCor) of the Medical School Hospital University of São Paulo, São Paulo, Brazil
| | - Maria L Higuchi
- 1 Heart Institute (InCor) of the Medical School Hospital University of São Paulo, São Paulo, Brazil
| | - Fernando R Mattos
- 1 Heart Institute (InCor) of the Medical School Hospital University of São Paulo, São Paulo, Brazil
| | - Fabio G Pitta
- 1 Heart Institute (InCor) of the Medical School Hospital University of São Paulo, São Paulo, Brazil
| | - Sergio A Hatab
- 2 Hospital Cassiano Antônio de Moraes, Federal University of Espírito Santo, Espírito Santo, Brazil
| | - Roberto Kalil-Filho
- 1 Heart Institute (InCor) of the Medical School Hospital University of São Paulo, São Paulo, Brazil
| | - Carlos V Serrano
- 1 Heart Institute (InCor) of the Medical School Hospital University of São Paulo, São Paulo, Brazil
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18
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Sedgwick A, Olivia Balmert M, D'Souza-Schorey C. The formation of giant plasma membrane vesicles enable new insights into the regulation of cholesterol efflux. Exp Cell Res 2018. [PMID: 29522754 DOI: 10.1016/j.yexcr.2018.03.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Aberrant cellular cholesterol accumulation contributes to the pathophysiology of many diseases including neurodegenerative disorders such as Niemann-Pick Type C (NPC) and Alzheimer's Disease1-4. Many aspects of cholesterol efflux from cells remain elusive. Here we describe the utility of cholesterol-rich giant plasma membrane vesicles (GPMVs) as a means to monitor cholesterol that is translocated to the plasma membrane for secretion. We demonstrate that small molecules known to enhance lipid efflux, including those in clinical trials for lipid storage disorders, enhance this GPMV formation. Conversely, pharmacological inhibition of cholesterol efflux blocks GPMV formation. We show that microtubule stabilization via paclitaxel treatment and increased tubulin acetylation via HDAC6 inhibition promotes the formation of GPMVs with concomitant reduction in cellular cholesterol in a cell model of NPC disease. The pan-deacetylase inhibitor panobinostat, which has been shown to reduce the severity of cholesterol storage in NPC, elicited a similar response. Further, the disruption of actin polymerization inhibits the formation of GPMVs, whereas the small GTP-binding protein Arl4c promotes actin remodeling at sites overlapping with GPMV formation. Thus, monitoring the formation of GPMVs provides a new avenue to better understand diseases whose pathology may be sensitive to alterations in cellular cholesterol.
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Affiliation(s)
- Alanna Sedgwick
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556-0369, USA
| | - M Olivia Balmert
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556-0369, USA
| | - Crislyn D'Souza-Schorey
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556-0369, USA.
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19
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de Lima AD, Guido MC, Tavares ER, Carvalho PO, Marques AF, de Melo MDT, Salemi VMC, Kalil-Filho R, Maranhão RC. The Expression of Lipoprotein Receptors Is Increased in the Infarcted Area After Myocardial Infarction Induced in Rats With Cardiac Dysfunction. Lipids 2018; 53:177-187. [DOI: 10.1002/lipd.12014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 12/01/2017] [Accepted: 12/04/2017] [Indexed: 01/07/2023]
Affiliation(s)
- Aline D. de Lima
- Laboratory of Metabolism and Lipids; Heart Institute (InCor), Medical School Hospital, University of São Paulo; Av. Dr. Eneas de Carvalho Aguiar, 44, Bl. 2, 1o.SS, São Paulo SP, 05403-900 Brazil
| | - Maria C. Guido
- Laboratory of Metabolism and Lipids; Heart Institute (InCor), Medical School Hospital, University of São Paulo; Av. Dr. Eneas de Carvalho Aguiar, 44, Bl. 2, 1o.SS, São Paulo SP, 05403-900 Brazil
| | - Elaine R. Tavares
- Laboratory of Metabolism and Lipids; Heart Institute (InCor), Medical School Hospital, University of São Paulo; Av. Dr. Eneas de Carvalho Aguiar, 44, Bl. 2, 1o.SS, São Paulo SP, 05403-900 Brazil
| | - Priscila O. Carvalho
- Laboratory of Metabolism and Lipids; Heart Institute (InCor), Medical School Hospital, University of São Paulo; Av. Dr. Eneas de Carvalho Aguiar, 44, Bl. 2, 1o.SS, São Paulo SP, 05403-900 Brazil
| | - Alyne F. Marques
- Laboratory of Metabolism and Lipids; Heart Institute (InCor), Medical School Hospital, University of São Paulo; Av. Dr. Eneas de Carvalho Aguiar, 44, Bl. 2, 1o.SS, São Paulo SP, 05403-900 Brazil
| | - Marcelo D. T. de Melo
- Heart Failure Unit and Clinical Cardiology Division; Heart Institute (InCor), Medical School Hospital, University of São Paulo; Av. Dr. Eneas de Carvalho Aguiar, 44, Bl. 2, 1o.SS, São Paulo SP, 05403-900 Brazil
| | - Vera M. C. Salemi
- Heart Failure Unit and Clinical Cardiology Division; Heart Institute (InCor), Medical School Hospital, University of São Paulo; Av. Dr. Eneas de Carvalho Aguiar, 44, Bl. 2, 1o.SS, São Paulo SP, 05403-900 Brazil
| | - Roberto Kalil-Filho
- Heart Failure Unit and Clinical Cardiology Division; Heart Institute (InCor), Medical School Hospital, University of São Paulo; Av. Dr. Eneas de Carvalho Aguiar, 44, Bl. 2, 1o.SS, São Paulo SP, 05403-900 Brazil
| | - Raul C. Maranhão
- Laboratory of Metabolism and Lipids; Heart Institute (InCor), Medical School Hospital, University of São Paulo; Av. Dr. Eneas de Carvalho Aguiar, 44, Bl. 2, 1o.SS, São Paulo SP, 05403-900 Brazil
- Faculty of Pharmaceutical Sciences; University of São Paulo; Av. Dr. Eneas de Carvalho Aguiar, 44, Bl. 2, 1o.SS, São Paulo SP, 05403-900 Brazil
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20
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Freitas SCMP, Tavares ER, Silva BMO, Meneghini BC, Kalil-Filho R, Maranhão RC. Lipid core nanoparticles resembling low-density lipoprotein and regression of atherosclerotic lesions: effects of particle size. ACTA ACUST UNITED AC 2018. [PMID: 29513883 PMCID: PMC5912096 DOI: 10.1590/1414-431x20177090] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Particles are usually polydispersed and size is an important feature for lipid-based drug delivery systems in order to optimize cell-particle interactions as to pharmacologic action and toxicity. Lipid nanoparticles (LDE) with composition similar to that of low-density lipoprotein carrying paclitaxel were shown to markedly reduce atherosclerosis lesions induced in rabbits by cholesterol feeding. The aim of this study was to test whether two LDE fractions, one with small (20-60 nm) and the other with large (60-100 nm) particles, had different actions on the atherosclerotic lesions. The two LDE-paclitaxel fractions, prepared by microfluidization, were separated by density gradient ultracentrifugation and injected (4 mg/body weight, intravenously once a week) into two groups of rabbits previously fed cholesterol for 4 weeks. A group of cholesterol-fed animals injected with saline solution was used as control to assess lesion reduction with treatment. After the treatment period, the animals were euthanized for analysis. After treatment, both the small and large nanoparticle preparations of LDE-paclitaxel had equally strong anti-atherosclerosis action. Both reduced lesion extension in the aorta by roughly 50%, decreased the intima width by 75% and the macrophage presence in the intima by 50%. The two preparations also showed similar toxicity profile. In conclusion, within the 20-100 nm range, size is apparently not an important feature regarding the LDE nanoparticle system and perhaps other solid lipid-based systems.
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21
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Daminelli EN, Fotakis P, Mesquita CH, Maranhão RC, Zannis VI. Tissue Uptake Mechanisms Involved in the Clearance of Non-Protein Nanoparticles that Mimic LDL Composition: A Study with Knockout and Transgenic Mice. Lipids 2017; 52:991-998. [PMID: 29094255 DOI: 10.1007/s11745-017-4306-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 09/28/2017] [Indexed: 10/18/2022]
Abstract
Lipid core nanoparticles (LDE) resembling LDL behave similarly to native LDL when injected in animals or subjects. In contact with plasma, LDE acquires apolipoproteins (apo) E, A-I and C and bind to LDL receptors. LDE can be used to explore LDL metabolism or as a vehicle of drugs directed against tumoral or atherosclerotic sites. The aim was to investigate in knockout (KO) and transgenic mice the plasma clearance and tissue uptake of LDE labeled with 3H-cholesteryl ether. LDE clearance was lower in LDLR KO and apoE KO mice than in wild type (WT) mice (p < 0.05). However, infusion of human apoE3 into the apoE KO mice increased LDE clearance. LDE clearance was higher in apoA-I KO than in WT. In apoA-I transgenic mice, LDE clearance was lower than in apoA-I KO and than in apoA-I KO infusion with human HDL. Infusion of human HDL into the apoA-I KO mice resulted in higher LDE clearance than in the apoA-I transgenic mice (p < 0.05). In apoA-I KO and apoA-I KO infused human HDL, the liver uptake was greater than in WT animals and apoA-I transgenic animals (p < 0.05). LDE clearance was lower in apoE/A-I KO than in WT. Infusion of human HDL increased LDE clearance in those double KO mice. No difference among the groups in LDE uptake by the tissues occurred. In conclusion, results support LDLR and apoE as the key players for LDE clearance, apoA-I also influences those processes.
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Affiliation(s)
- Elaine N Daminelli
- Heart Institute (InCor) of the Medical School Hospital, FMUSP, University of São Paulo, São Paulo, SP, Brazil.,Departments of Medicine and Biochemistry, Molecular Genetics, Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA, USA
| | - Panagiotis Fotakis
- Departments of Medicine and Biochemistry, Molecular Genetics, Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA, USA.,Department of Biochemistry, University of Crete Medical School, Crete, Greece
| | - Carlos H Mesquita
- Heart Institute (InCor) of the Medical School Hospital, FMUSP, University of São Paulo, São Paulo, SP, Brazil
| | - Raul C Maranhão
- Heart Institute (InCor) of the Medical School Hospital, FMUSP, University of São Paulo, São Paulo, SP, Brazil. .,Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil.
| | - Vassilis I Zannis
- Departments of Medicine and Biochemistry, Molecular Genetics, Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA, USA.,Department of Biochemistry, University of Crete Medical School, Crete, Greece
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22
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Fiorelli AI, Lourenço-Filho DD, Tavares ER, Carvalho PO, Marques AF, Gutierrez PS, Maranhão RC, Stolf NAG. Methotrexate associated to lipid core nanoparticles improves cardiac allograft vasculopathy and the inflammatory profile in a rabbit heart graft model. ACTA ACUST UNITED AC 2017; 50:e6225. [PMID: 28832763 PMCID: PMC5561808 DOI: 10.1590/1414-431x20176225] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 07/11/2017] [Indexed: 11/25/2022]
Abstract
Coronary allograft vasculopathy is an inflammatory-proliferative process that compromises the long-term success of heart transplantation and has no effective treatment. A lipid nanoemulsion (LDE) can carry chemotherapeutic agents in the circulation and concentrates them in the heart graft. The aim of the study was to investigate the effects of methotrexate (MTX) associated to LDE. Rabbits fed a 0.5% cholesterol diet and submitted to heterotopic heart transplantation were treated with cyclosporine A (10 mg·kg–1·day–1 orally) and allocated to treatment with intravenous LDE-MTX (4 mg/kg, weekly, n=10) or with weekly intravenous saline solution (control group, n=10), beginning on the day of surgery. Animals were euthanized 6 weeks later. Compared to controls, grafts of LDE-MTX treated rabbits showed 20% reduction of coronary stenosis, with a four-fold increase in vessel lumen and 80% reduction of macrophage staining in grafts. Necrosis was attenuated by LDE-MTX. Native hearts of both LDE-MTX and Control groups were apparently normal. Gene expression of lipoprotein receptors was significantly greater in grafts compared to native hearts. In LDE-MTX group, gene expression of the pro-inflammatory factors tumor necrosis factor-α, monocyte chemoattractant protein-1, interleukin-18, vascular cell adhesion molecule-1, and matrix metalloproteinase-12 was strongly diminished whereas expression of anti-inflammatory interleukin-10 increased. LDE-MTX promoted improvement of the cardiac allograft vasculopathy and diminished inflammation in heart grafts.
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Affiliation(s)
- A I Fiorelli
- Instituto do Coração, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
| | - D D Lourenço-Filho
- Instituto do Coração, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
| | - E R Tavares
- Instituto do Coração, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
| | - P O Carvalho
- Instituto do Coração, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
| | - A F Marques
- Instituto do Coração, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
| | - P S Gutierrez
- Instituto do Coração, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
| | - R C Maranhão
- Instituto do Coração, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil.,Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, SP, Brasil
| | - N A G Stolf
- Instituto do Coração, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil
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23
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Influence of Drugs Carried in Lipid Nanoparticles in Coronary Disease of Rabbit Transplanted Heart. Ann Thorac Surg 2017; 104:577-583. [DOI: 10.1016/j.athoracsur.2016.12.044] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 11/17/2016] [Accepted: 12/20/2016] [Indexed: 11/19/2022]
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24
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Feio DCA, de Oliveira NCL, Pereira ELR, Morikawa AT, Muniz JAPC, Montenegro RC, Alves APNN, de Lima PDL, Maranhão RC, Burbano RR. Organic effects of associating paclitaxel with a lipid-based nanoparticle system on a nonhuman primate, Cebus apella. Int J Nanomedicine 2017; 12:3827-3837. [PMID: 28572727 PMCID: PMC5441669 DOI: 10.2147/ijn.s129153] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Lipid-based nanoparticle systems have been used as vehicles for chemotherapeutic agents in experimental cancer treatments. Those systems have generally been credited with attenuating the severe toxicity of chemotherapeutic agents. This study aimed to investigate the effects of associating paclitaxel (PTX) with a lipid-based nanoparticle system on a nonhuman primate, Cebus apella, documenting the toxicity as measured by serum biochemistry, which is a detailed analysis of blood and tissue. Eighteen C. apella were studied: three animals were treated with cholesterol-rich nanoemulsion (LDE) only, without PTX, administered intravenously every 3 weeks, during six treatment cycles; six animals were treated with PTX associated with LDE at the same administration scheme, three with lower (175 mg/m2) and three with higher (250 mg/m2) PTX doses; and six animals were treated with commercial PTX, three with the lower and three with the higher doses. In the LDE-PTX group, no clinical toxicity appeared, and the weight-food consumption curve was similar to that of the controls. Two animals treated with commercial PTX presented weight loss, nausea and vomiting, diarrhea, skin flaking, 70% loss of body hair, and decreased physical activity. The use of LDE as a carrier at both lower and higher doses reduced the toxicity of the drug in this species, which is closely related to human subjects. This was observed not only by clinical, biochemical, and hematological profiles but also by the histopathological analysis. The results of this study support the assumption that lipid-based nanoparticle systems used as drug carriers can serve as valuable tools to decrease the toxicity and increase the safety of chemotherapeutic agents.
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Affiliation(s)
| | | | | | | | | | | | | | - Patrícia Danielle Lima de Lima
- Molecular Biology Laboratory, Post Graduate Program of Amazon Parasitic Biology, Biological and Health Sciences Center, State University of Pará, Belem, Brazil
| | | | - Rommel Rodríguez Burbano
- Human Cytogenetics Laboratory, Institute of Biological Sciences, Federal University of Pará, Belem
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Maranhão RC, Guido MC, de Lima AD, Tavares ER, Marques AF, Tavares de Melo MD, Nicolau JC, Salemi VM, Kalil-Filho R. Methotrexate carried in lipid core nanoparticles reduces myocardial infarction size and improves cardiac function in rats. Int J Nanomedicine 2017; 12:3767-3784. [PMID: 28553113 PMCID: PMC5440040 DOI: 10.2147/ijn.s129324] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Purpose Acute myocardial infarction (MI) is accompanied by myocardial inflammation, fibrosis, and ventricular remodeling that, when excessive or not properly regulated, may lead to heart failure. Previously, lipid core nanoparticles (LDE) used as carriers of the anti-inflammatory drug methotrexate (MTX) produced an 80-fold increase in the cell uptake of MTX. LDE-MTX treatment reduced vessel inflammation and atheromatous lesions induced in rabbits by cholesterol feeding. The aim of the study was to investigate the effects of LDE-MTX on rats with MI, compared with commercial MTX treatment. Materials and methods Thirty-eight Wistar rats underwent left coronary artery ligation and were treated with LDE-MTX, or with MTX (1 mg/kg intraperitoneally, once/week, starting 24 hours after surgery) or with LDE without drug (MI-controls). A sham-surgery group (n=12) was also included. Echocardiography was performed 24 hours and 6 weeks after surgery. The animals were euthanized and their hearts were analyzed for morphometry, protein expression, and confocal microscopy. Results LDE-MTX treatment achieved a 40% improvement in left ventricular (LV) systolic function and reduced cardiac dilation and LV mass, as shown by echocardiography. LDE-MTX reduced the infarction size, myocyte hypertrophy and necrosis, number of inflammatory cells, and myocardial fibrosis, as shown by morphometric analysis. LDE-MTX increased antioxidant enzymes; decreased apoptosis, macrophages, reactive oxygen species production; and tissue hypoxia in non-infarcted myocardium. LDE-MTX increased adenosine bioavailability in the LV by increasing adenosine receptors and modulating adenosine catabolic enzymes. LDE-MTX increased the expression of myocardial vascular endothelium growth factor (VEGF) associated with adenosine release; this correlated not only with an increase in angiogenesis, but also with other parameters improved by LDE-MTX, suggesting that VEGF increase played an important role in the beneficial effects of LDE-MTX. Overall effects of commercial MTX were minor, and did not improve LV function or infarction size. Both treatments did not induce any toxicity. Conclusion The remarkable improvement in heart function and reduction in infarction size achieved by LDE-MTX supports future clinical trials.
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Affiliation(s)
- Raul C Maranhão
- Laboratory of Metabolism and Lipids.,Faculty of Pharmaceutical Sciences
| | | | | | | | | | - Marcelo D Tavares de Melo
- Heart Failure Unit, Clinical Cardiology Division, Heart Institute (InCor), Medical School Hospital, University of São Paulo, São Paulo, Brazil
| | - Jose C Nicolau
- Heart Failure Unit, Clinical Cardiology Division, Heart Institute (InCor), Medical School Hospital, University of São Paulo, São Paulo, Brazil
| | - Vera Mc Salemi
- Heart Failure Unit, Clinical Cardiology Division, Heart Institute (InCor), Medical School Hospital, University of São Paulo, São Paulo, Brazil
| | - Roberto Kalil-Filho
- Heart Failure Unit, Clinical Cardiology Division, Heart Institute (InCor), Medical School Hospital, University of São Paulo, São Paulo, Brazil
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D Lima A, Hua N, C Maranhão R, A Hamilton J. Evaluation of atherosclerotic lesions in cholesterol-fed mice during treatment with paclitaxel in lipid nanoparticles: a magnetic resonance imaging study. J Biomed Res 2017; 31:116-121. [PMID: 28808193 PMCID: PMC5445214 DOI: 10.7555/jbr.31.20160123] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Cholesterol-core nanoparticles (LDE) have been shown to be recognized by low-density lipoprotein receptors (LDLR) after administration; therefore, LDE is an ideal vehicle to deliver drug with targeting property. Paclitaxel, when incorporated into LDE, promotes atherosclerosis regression with reduced drug toxicity in rabbits through LDLR. Here, we tested whether LDE-paclitaxel could still be effective in reducing diet-induced atherosclerosis in a mouse model without LDLR. Nineteen LDLR knockout male mice were fed 1% cholesterol for 12 weeks. Then, 12 animals received 4-weekly intraperitoneal LDE-paclitaxel (4 mg/kg) while 7 controls received saline solution. On week 12 and 16, in vivo MRI of the aortic roots was performed. Aorta macroscopy was made after euthanasia. Reduction of atherosclerotic lesions was observed. LDE-paclitaxel treatment resulted in reduction of wall area (14%) and stenosis (22%) by MRI and 33% by macroscopy. Thus, LDE-paclitaxel may produce pharmacological effects through LDE uptake by mechanisms other than LDLR.
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Affiliation(s)
- Aline D Lima
- Laboratory of Metabolism and Lipids, Heart Institute of the Medical School Hospital, S?o Paulo, Brazil.,Department of Physiology and Biophysics, Boston University School of Medicine, Boston, MA 02118, USA
| | - Ning Hua
- Department of Physiology and Biophysics, Boston University School of Medicine, Boston, MA 02118, USA
| | - Raul C Maranhão
- Laboratory of Metabolism and Lipids, Heart Institute of the Medical School Hospital, S?o Paulo, Brazil
| | - James A Hamilton
- Department of Physiology and Biophysics, Boston University School of Medicine, Boston, MA 02118, USA
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Gibran L, Maranhão RC, Tavares ER, Carvalho PO, Abrão MS, Podgaec S. mRNA levels of low-density lipoprotein receptors are overexpressed in the foci of deep bowel endometriosis. Hum Reprod 2016; 32:332-339. [DOI: 10.1093/humrep/dew303] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 10/21/2016] [Accepted: 11/04/2016] [Indexed: 11/14/2022] Open
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Reduction of Atherosclerotic Lesions by the Chemotherapeutic Agent Carmustine Associated to Lipid Nanoparticles. Cardiovasc Drugs Ther 2016; 30:433-443. [DOI: 10.1007/s10557-016-6675-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Shiozaki AA, Senra T, Morikawa AT, Deus DF, Paladino AT, Pinto IM, Maranhão RC. Treatment of patients with aortic atherosclerotic disease with paclitaxel-associated lipid nanoparticles. Clinics (Sao Paulo) 2016; 71:435-9. [PMID: 27626473 PMCID: PMC4975788 DOI: 10.6061/clinics/2016(08)05] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 04/20/2016] [Indexed: 12/02/2022] Open
Abstract
OBJECTIVE The toxicity of anti-cancer chemotherapeutic agents can be reduced by associating these compounds, such as the anti-proliferative agent paclitaxel, with a cholesterol-rich nanoemulsion (LDE) that mimics the lipid composition of low-density lipoprotein (LDL). When injected into circulation, the LDE concentrates the carried drugs in neoplastic tissues and atherosclerotic lesions. In rabbits, atherosclerotic lesion size was reduced by 65% following LDE-paclitaxel treatment. The current study aimed to test the effectiveness of LDE-paclitaxel on inpatients with aortic atherosclerosis. METHODS This study tested a 175 mg/m2 body surface area dose of LDE-paclitaxel (intravenous administration, 3/3 weeks for 6 cycles) in patients with aortic atherosclerosis who were aged between 69 and 86 yrs. A control group of 9 untreated patients with aortic atherosclerosis (72-83 yrs) was also observed. RESULTS The LDE-paclitaxel treatment elicited no important clinical or laboratory toxicities. Images were acquired via multiple detector computer tomography angiography (64-slice scanner) before treatment and at 1-2 months after treatment. The images showed that the mean plaque volume in the aortic artery wall was reduced in 4 of the 8 patients, while in 3 patients it remained unchanged and in one patient it increased. In the control group, images were acquired twice with an interval of 6-8 months. None of the patients in this group exhibited a reduction in plaque volume; in contrast, the plaque volume increased in three patients and remained stable in four patients. During the study period, one death unrelated to the treatment occurred in the LDE-paclitaxel group and one death occurred in the control group. CONCLUSION Treatment with LDE-paclitaxel was tolerated by patients with cardiovascular disease and showed the potential to reduce atherosclerotic lesion size.
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Affiliation(s)
- Afonso A. Shiozaki
- Instituto Dante Pazzanese de Cardiologia, São Paulo/SP, Brazil
- Laboratório de Metabolismo e Lípides - Instituto do Coração (InCor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo/SP, Brazil
- Hospital Maringá, Maringá/Paraná, Brazil
| | - Tiago Senra
- Instituto Dante Pazzanese de Cardiologia, São Paulo/SP, Brazil
| | - Aleksandra T. Morikawa
- Laboratório de Metabolismo e Lípides - Instituto do Coração (InCor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo/SP, Brazil
| | - Débora F. Deus
- Laboratório de Metabolismo e Lípides - Instituto do Coração (InCor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo/SP, Brazil
| | | | | | - Raul C. Maranhão
- Laboratório de Metabolismo e Lípides - Instituto do Coração (InCor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo/SP, Brazil
- Faculdade de Ciências Farmacêuticas da Universidade de São Paulo, São Paulo/SP, Brazil
- E-mail:
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Use of combined chemotherapy with etoposide and methotrexate, both associated to lipid nanoemulsions for atherosclerosis treatment in cholesterol-fed rabbits. Cardiovasc Drugs Ther 2015; 29:15-22. [PMID: 25672520 DOI: 10.1007/s10557-014-6566-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
PURPOSE Treatment of atherosclerotic rabbits with intravenous methotrexate or etoposide carried in lipid nanoemulsions (LDE) markedly reduced the lesions in the aorta. Here, the combined treatment with LDE-methotrexate and LDE-etoposide was investigated aiming to increase the anti-atherosclerosis effect. METHODS Thirty-six male rabbits received a diet with 1 % cholesterol for 2 months. After the first month, the animals received 4 weekly intravenous injections of LDE-methotrexate (4 mg/kg dose), LDE-etoposide (6 mg/kg), or a combination of those two drugs, while the control animals were injected with LDE (n = 9 for each group). RESULTS LDE-methotrexate+LDE-etoposide reduced aortic lesion areas by 95 % compared with controls and the intima-media ratio was reduced five-fold, whereas LDE-methotrexate reduced the lesions by 81 % and LDE-etoposide by 83 %. Compared to controls, the positive area of macrophages and MMP-9 in the arterial intima was significantly reduced in all treated groups (p < 0.001), but the MMP9 reduction was greater with the combined chemotherapy than the reduction achieved by the isolated treatments. Presence of CD3 positive cells was equal in controls and LDE-methotrexate+LDE-etoposide treated animals. However, FOXP3 positive T lymphocytes in the intima were increased in the LDE-methotrexate+LDE-etoposide rabbits. Weight, food intake evolution and the hematologic parameters suggested that the treatment had very low toxicity. CONCLUSIONS Compared to the single treatments with LDE-methotrexate and LDE-etoposide, the combined treatment was more effective in reducing the atherosclerotic lesions. Because the toxicity of the novel drug-target combined scheme was low, those results favor the possibility of future clinical studies in patients with cardiovascular disease.
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Hörmann K, Zimmer A. Drug delivery and drug targeting with parenteral lipid nanoemulsions - A review. J Control Release 2015; 223:85-98. [PMID: 26699427 DOI: 10.1016/j.jconrel.2015.12.016] [Citation(s) in RCA: 140] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 12/12/2015] [Indexed: 12/18/2022]
Abstract
Lipid nanosized emulsions or nanoemulsions (NE) are oil in water dispersions with an oil droplet size of about 200nm. This size of oil droplets dispersed in a continuous water phase is a prerequisite for the parenteral, namely intravenous administration. Many parenteral nutrition and drug emulsions on the market confirm the safe use of NE over years. Parenteral emulsions loaded with APIs (active pharmaceutical ingredients) are considered as drug delivery systems (DDS). DDS focuses on the regulation of the in vivo dynamics, such as absorption, distribution, metabolism, and extended bioavailability, thereby improving the effectiveness and the safety of the drugs. Using an emulsion as a DDS, or through the use of surface diversification of the dispersed oil droplets of emulsions, a targeted increase of the API concentration in some parts of the human body can be achieved. This review focuses on NE similar to the marketed once with no or only low amount of additional surfactants beside the emulsifier from a manufacturing point of view (technique, used raw materials).
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Affiliation(s)
- Karl Hörmann
- Fresenius Kabi Austria GmbH, Hafnerstraße 36, A-8055 Graz, Austria
| | - Andreas Zimmer
- Karl-Franzens-University of Graz, Institute of Pharmaceutical Sciences, Department of Pharmaceutical Technology, Member of BioTechMed Graz, Universitätsplatz 1, A-8010 Graz, Austria.
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Maranhão RC, Tavares ER. Advances in non-invasive drug delivery for atherosclerotic heart disease. Expert Opin Drug Deliv 2015; 12:1135-47. [DOI: 10.1517/17425247.2015.999663] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Sengottuvel V, Fischer D. Facilitating axon regeneration in the injured CNS by microtubules stabilization. Commun Integr Biol 2014. [DOI: 10.4161/cib.15552] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Ganta S, Talekar M, Singh A, Coleman TP, Amiji MM. Nanoemulsions in translational research-opportunities and challenges in targeted cancer therapy. AAPS PharmSciTech 2014; 15:694-708. [PMID: 24510526 DOI: 10.1208/s12249-014-0088-9] [Citation(s) in RCA: 115] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Accepted: 01/17/2014] [Indexed: 12/29/2022] Open
Abstract
Nanoemulsion dosage form serves as a vehicle for the delivery of active pharmaceutical ingredients and has attracted great attention in drug delivery and pharmacotherapy. In particular, nanoemulsions act as an excellent vehicle for poorly aqueous soluble drugs, which are otherwise difficult to formulate in conventional dosage forms. Nanoemulsions are submicron emulsions composed of generally regarded as safe grade excipients. Particle size at the nanoscale and larger surface area lead to some very interesting physical properties that can be exploited to overcome anatomical and physiological barriers associated in drug delivery to the complex diseases such as cancer. Along these lines, nanoemulsions have been engineered with specific attributes such as size, surface charge, prolonged blood circulation, target specific binding ability, and imaging capability. These attributes can be tuned to assist in delivering drug/imaging agents to the specific site of interest, based on active and passive targeting mechanisms. This review focuses on the current state of nanoemulsions in the translational research and its role in targeted cancer therapy. In addition, the production, physico-chemical characterization, and regulatory aspects of nanoemulsion are addressed.
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Bulgarelli A, Leite ACA, Dias AAM, Maranhão RC. Anti-Atherogenic Effects of Methotrexate Carried by a Lipid Nanoemulsion That Binds to LDL Receptors in Cholesterol-fed Rabbits. Cardiovasc Drugs Ther 2013; 27:531-9. [DOI: 10.1007/s10557-013-6488-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Mello SBV, Tavares ER, Bulgarelli A, Bonfá E, Maranhão RC. Intra-articular methotrexate associated to lipid nanoemulsions: anti-inflammatory effect upon antigen-induced arthritis. Int J Nanomedicine 2013; 8:443-9. [PMID: 23439784 PMCID: PMC3576886 DOI: 10.2147/ijn.s29392] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Objective Commercial methotrexate formulations (MTX) have poor anti-inflammatory action for intra-articular treatment of rheumatoid arthritis. Our aim was to investigate whether an association between methotrexate and lipidic nanoemulsions (LDE) could improve MTX intra-articular action. Methods For its association to LDE, MTX was previously esterified with dodecyl bromide. LDE-MTX was prepared by high pressure homogenization. Antigen-induced arthritis (AIA) was achieved in rabbits sensitized with methylated bovine serum albumin, and the rabbits were subsequently intra-articularly injected with the antigen. Twenty-four hours after AIA induction, groups of four to nine rabbits were intra-articularly injected with increasing doses (0.0625–0.5 μmol/kg) of LDE-MTX, and were compared to treatment with 0.5 μmol/kg commercial MTX, LDE alone, and saline (controls). Synovial fluid was collected 48 hours after AIA induction for analysis of protein leakage and cell content. Synovial membranes were collected for histopathology. Uptake of LDE labeled with 3H-cholesteryl ether by the synovial tissue was also determined. Results Uptake of radioactive LDE by arthritic joints was 2.5-fold greater than by normal joints. Treatment with intra-articular LDE-MTX elicited a clear dose response pattern by reducing the synovial leukocyte infiltrate (P = 0.004) and protein leakage (P = 0.032) when compared with arthritic non-treated joints. In contrast, the intra-articular injection of commercial MTX and LDE did not reduce leukocyte infiltrate or protein leakage. Toxicity to treatment was not observed in any of the animals. Conclusion The association between LDE and MTX presented a marked anti-inflammatory effect that was absent after intra-articular commercial MTX treatment. Therefore, the new formulation is a candidate for future clinical studies.
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Affiliation(s)
- Suzana B V Mello
- Rheumatology Division, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
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Eniola-Adefeso O, Heslinga MJ, Porter TM. Design of nanovectors for therapy and imaging of cardiovascular diseases. Methodist Debakey Cardiovasc J 2012; 8:13-7. [PMID: 22891105 DOI: 10.14797/mdcj-8-1-13] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Cardiovascular diseases are widely prevalent in western societies, and their associated costs number in the billions of dollars and affect millions of patients each year. Nanovectors targeted to tissues involved in cardiovascular diseases offer great opportunities to improve cardiovascular treatment through their imaging and drug delivery capabilities. Vascular-targeted imaging particles may permit the early identification of atherosclerosis, discriminate between stable and vulnerable atherosclerotic plaques, or guide surgeons as they work on fragile vasculature. Tailored therapeutic nanoparticles may provide safer, more efficient and effective intervention through localization and release of encapsulated therapeutics. Nanovector design involves numerous considerations such as fabrication material, particle size, and surface-modification with ligands for targeting and increasing blood circulation times. Complex blood rheology may affect the efficiency with which dissimilarsized particles target ligand receptors associated with disease. Additionally, the intended use of a nanovector is a critical factor in its design as some materials with poor drug-loading qualities or release kinetics may be suitable for imaging purposes only. Overall, vectors targeted to the vasculature will need to be efficient in avoiding blood clearance, honing to the target location, and binding at the desired site.
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Jain V, Swarnakar NK, Mishra PR, Verma A, Kaul A, Mishra AK, Jain NK. Paclitaxel loaded PEGylated gleceryl monooleate based nanoparticulate carriers in chemotherapy. Biomaterials 2012; 33:7206-20. [PMID: 22809646 DOI: 10.1016/j.biomaterials.2012.06.056] [Citation(s) in RCA: 102] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Accepted: 06/22/2012] [Indexed: 10/28/2022]
Abstract
A PEGylated drug delivery system of paclitaxel (PTX), based on glyceryl monooleate (GMO) was prepared by optimizing various parameters to explore its potential in anticancer therapy. The prepared system was characterized through polarized light microscopy, TEM, AFM and SAXS to reveal its liquid crystalline nature. As GMO based LCNPs exhibit high hemolytic toxicity and faster release of entrapped drug (66.2 ± 2.5% in 24 h), PEGylation strategy was utilized to increase the hemocompatibility (reduction in hemolysis from 60.3 ± 10.2 to 4.4 ± 1.3%) and control the release of PTX (43.6 ± 3.2% released in 24 h). The cytotoxic potential and cellular uptake was assessed in MCF-7 cell lines. Further, biodistribution studies were carried out in EAT (Ehrlich Ascites tumor) bearing mice using (99m)Tc-(Technetium radionuclide) labeled formulations and an enhanced circulation time and tumor accumulation (14 and 8 times, respectively) were observed with PEGylated carriers over plain ones, at 24 h. Finally, tumor growth inhibition experiment was performed and after 15 days, control group exhibited 15 times enhancement in tumor volume, while plain and PEGylated systems exhibited only 8 and 4 times enhancement, respectively, as compared to initial tumor volume. The results suggest that PEGylation enhances the hemocompatibility and efficacy of GMO based system that may serve as an efficient i.v. delivery vehicle for paclitaxel.
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Affiliation(s)
- Vikas Jain
- Pharmaceutics Research Laboratory, Department of Pharmaceutical Sciences, Dr H S Gour University, Sagar, MP, India.
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Hevus I, Modgil A, Daniels J, Kohut A, Sun C, Stafslien S, Voronov A. Invertible micellar polymer assemblies for delivery of poorly water-soluble drugs. Biomacromolecules 2012; 13:2537-45. [PMID: 22759064 DOI: 10.1021/bm3007924] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Strategically designed amphiphilic invertible polymers (AIPs) are capable of (i) self-assembling into invertible micellar assemblies (IMAs) in response to changes in polarity of environment, polymer concentration, and structure, (ii) accommodating (solubilizing) substances that are otherwise insoluble in water, and (iii) inverting their molecular conformation in response to changes in the polarity of the local environment. The unique ability of AIPs to invert the molecular conformation depending on the polarity of the environment can be a decisive factor in establishing the novel stimuli-responsive mechanism of solubilized drug release that is induced just in response to a change in the polarity of the environment. The IMA capability to solubilize lipophilic drugs and deliver and release the cargo molecules by conformational inversion of polymer macromolecules in response to a change of the polarity of the environment was demonstrated by loading IMA with a phytochemical drug, curcumin. It was demonstrated that four sets of micellar vehicles based on different AIPs were capable of delivering the curcumin from water to an organic medium (1-octanol) by means of unique mechanism: AIP conformational inversion in response to changing polarity from polar to nonpolar. The IMAs are shown to be nontoxic against human cells up to a concentration of 10 mg/L. On the other hand, the curcumin-loaded IMAs are cytotoxic to breast carcinoma cells at this concentration, which confirms the potential of IMA-based vehicles in controlled delivery of poorly water-soluble drug candidates and release by means of this novel stimuli-responsive mechanism.
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Affiliation(s)
- Ivan Hevus
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58108, United States
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Occhiutto ML, Freitas FR, Maranhao RC, Costa VP. Breakdown of the blood-ocular barrier as a strategy for the systemic use of nanosystems. Pharmaceutics 2012; 4:252-75. [PMID: 24300231 PMCID: PMC3834913 DOI: 10.3390/pharmaceutics4020252] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Revised: 04/17/2012] [Accepted: 05/05/2012] [Indexed: 12/14/2022] Open
Abstract
Several drug delivery systems have been proposed to overcome physiological barriers, improving ocular bioavailability. Systemic routes are seldom used due to the blood-ocular barrier. Novel drug delivery systems based on nanotechnology techniques have been developed to overcome ocular physiological barriers. This non-systematic review suggests the utilization of a transitory blood-ocular breakdown to allow the access of drugs by nanotechnology drug delivery systems via the systemic route. We discuss the possible ways to cause the breakdown of the blood-ocular barrier: acute inflammation caused by intraocular surgery, induced ocular hypotony, and the use of inflammatory mediators. The suitability of use of the systemic route and its toxic effects are also discussed in this article.
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Affiliation(s)
- Marcelo L. Occhiutto
- Heart Institute, Medical School Hospital, University of São Paulo, São Paulo 05403-000, Brazil; (M.L.O.); (F.R.F.); (R.C.M.)
| | - Fatima R. Freitas
- Heart Institute, Medical School Hospital, University of São Paulo, São Paulo 05403-000, Brazil; (M.L.O.); (F.R.F.); (R.C.M.)
| | - Raul C. Maranhao
- Heart Institute, Medical School Hospital, University of São Paulo, São Paulo 05403-000, Brazil; (M.L.O.); (F.R.F.); (R.C.M.)
- Faculty of Pharmaceutical Science, University of São Paulo, São Paulo 05508-000, Brazil
| | - Vital P. Costa
- Department of Ophthalmology, University of Campinas, Campinas, São Paulo 13083-887, Brazil
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Tada T, Joner M. Downstream effects of coronary drug-eluting stents: promising prophecy or incidental surveillance? Interv Cardiol 2012. [DOI: 10.2217/ica.11.92] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Lian H, Sun J, Yu YP, Liu YH, Cao W, Wang YJ, Sun YH, Wang SL, He ZG. Supramolecular micellar nanoaggregates based on a novel chitosan/vitamin E succinate copolymer for paclitaxel selective delivery. Int J Nanomedicine 2011; 6:3323-34. [PMID: 22228999 PMCID: PMC3252679 DOI: 10.2147/ijn.s26305] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Background Nowadays, many cytotoxic anticancer drugs exhibit low solubility and poor tumor selectivity, which means that the drug formulation is very important. For example, in the case of paclitaxel (PTX), Cremophor EL® (BASF, Ludwigshafen, Germany) needs to be used as a solubilizer in its clinical formulation (Taxol®, Bristol-Myers Squibb, New York, NY), although it can cause serious side effects. Nanomicellar systems are promising carriers to resolve the above problems, and the polymer chosen is the key element. Methods In this study, a novel amphiphilic chitosan/vitamin E succinate (CS-VES) copolymer was successfully synthesized for self-assembling polymeric micelles. Proton nuclear magnetic resonance spectroscopy and infrared were used to characterize the molecular structure of the copolymer. The PTX-loaded CS-VES polymeric micelles (PTX-micelles) were characterized by dynamic light scattering, transmission electron microscopy, X-ray diffraction, and differential scanning calorimetry. Results The critical micelle concentration of CS-VES was about 12.6 μg/mL, with the degree of amino group substitution being 20.4%. PTX-micelles were prepared by a nanoprecipitation/dispersion technique without any surfactant being involved. PTX-micelles exhibited a drug loading as high as 21.37% and an encapsulation efficiency of 81.12%, with a particle size ranging from 326.3 to 380.8 nm and a zeta potential of +20 mV. In vitro release study showed a near zero-order sustained release, with 51.06%, 50.88%, and 44.35% of the PTX in the micelles being released up to 168 hours at three drug loadings of 7.52%, 14.09%, and 21.37%, respectively. The cellular uptake experiments, conducted by confocal laser scanning microscopy, showed an enhanced cellular uptake efficiency of the CS-VES micelles in MCF-7 cells compared with Taxol. The PTX-micelles exhibited a comparable but delayed cytotoxic effect compared with Taxol against MCF-7 cells, due to the sustained-release characteristics of the nanomicelles. More interestingly, blank nanomicelles based on CS-VES copolymer demonstrated significant cytotoxicity against MCF-7 cells. Conclusion The supramolecular micellar aggregates based on CS-VES copolymer is a promising nanocarrier and efficacy enhancer when used as an anticancer drug-delivery system.
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Affiliation(s)
- He Lian
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, People’s Republic of China
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Tavares ER, Freitas FR, Diament J, Maranhão RC. Reduction of atherosclerotic lesions in rabbits treated with etoposide associated with cholesterol-rich nanoemulsions. Int J Nanomedicine 2011; 6:2297-304. [PMID: 22072867 PMCID: PMC3205126 DOI: 10.2147/ijn.s24048] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Objectives Cholesterol-rich nanoemulsions (LDE) bind to low-density lipoprotein (LDL) receptors and after injection into the bloodstream concentrate in aortas of atherosclerotic rabbits. Association of paclitaxel with LDE markedly reduces the lesions. In previous studies, treatment of refractory cancer patients with etoposide associated with LDE had been shown devoid of toxicity. In this study, the ability of etoposide to reduce lesions and inflammatory factors in atherosclerotic rabbits was investigated. Methods Eighteen New Zealand rabbits were fed a 1% cholesterol diet for 60 days. Starting from day 30, nine animals were treated with four weekly intravenous injections of etoposide oleate (6 mg/kg) associated with LDE, and nine control animals were treated with saline solution injections. Results LDE-etoposide reduced the lesion areas of cholesterol-fed animals by 85% and intima width by 50% and impaired macrophage and smooth muscle cell invasion of the intima. Treatment also markedly reduced the protein expression of lipoprotein receptors (LDL receptor, LDL-related protein-1, cluster of differentiation 36, and scavenger receptor class B member 1), inflammatory cytokines (interleukin-1β and tumor necrosis factor-α), matrix metallopeptidase-9, and cell proliferation markers (topoisomerase IIα and tubulin). Conclusion The ability of LDE-etoposide to strongly reduce the lesion area and the inflammatory process warrants the great therapeutic potential of this novel preparation to target the inflammatory-proliferative basic mechanisms of the disease.
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Affiliation(s)
- Elaine R Tavares
- Heart Institute of Medical School Hospital (InCor), University of São Paulo, São Paulo, Brazil
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Moura JA, Valduga CJ, Tavares ER, Kretzer IF, Maria DA, Maranhão RC. Novel formulation of a methotrexate derivative with a lipid nanoemulsion. Int J Nanomedicine 2011; 6:2285-95. [PMID: 22072866 PMCID: PMC3205125 DOI: 10.2147/ijn.s18039] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background Lipid nanoemulsions that bind to low-density lipoprotein receptors can concentrate chemotherapeutic agents in tissues with low-density lipoprotein receptor overexpression and decrease the toxicity of the treatment. The aim of this study was to develop a new formulation using a lipophilic derivative of methotrexate, ie, didodecyl methotrexate (ddMTX), associated with a lipid nanoemulsion (ddMTX-LDE). Methods ddMTX was synthesized by an esterification reaction between methotrexate and dodecyl bromide. The lipid nanoemulsion was prepared by four hours of ultrasonication of a mixture of phosphatidylcholine, triolein, and cholesteryloleate. Association of ddMTX with the lipid nanoemulsion was performed by additional cosonication of ddMTX with the previously prepared lipid nanoemulsion. Formulation stability was evaluated, and cell uptake, cytotoxicity, and acute animal toxicity studies were performed. Results The yield of ddMTX incorporation was 98% and the particle size of LDE-ddMTX was 60 nm. After 48 hours of incubation with plasma, approximately 28% ddMTX was released from the lipid nanoemulsion. The formulation remained stable for at least 45 days at 4°C. Cytotoxicity of LDE-ddMTX against K562 and HL60 neoplastic cells was higher than for methotrexate (50% inhibitory concentration [IC50] 1.6 versus 18.2 mM and 0.2 versus 26 mM, respectively), and cellular uptake of LDE-ddMTX was 90-fold higher than that of methotrexate in K562 cells and 75-fold in HL60 cells. Toxicity of LDE-ddMTX, administered at escalating doses, was higher than for methotrexate (LD50 115 mg/kg versus 470 mg/kg; maximum tolerated dose 47 mg/kg versus 94 mg/kg) in mice. However, the hematological toxicity of LDE-ddMTX was lower than for methotrexate. Conclusion LDE-ddMTX was stable, and uptake of the formulation by neoplastic cells was remarkably greater than of methotrexate, which resulted in markedly greater cytotoxicity. LDE-ddMTX is thus a promising formulation to be tested in future animal models of cancer or rheumatic disease, wherein methotrexate is widely used.
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Affiliation(s)
- Juliana A Moura
- Heart Institute of the Medical School Hospital, University of São Paulo, São Paulo, Brazil
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Krasuski RA, Cater GM, Devendra GP, Wolski K, Shishehbor MH, Nissen SE, Oberti C, Ellis SG. Downstream coronary effects of drug-eluting stents. Am Heart J 2011; 162:764-771.e1. [PMID: 21982671 DOI: 10.1016/j.ahj.2011.08.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Accepted: 08/02/2011] [Indexed: 11/26/2022]
Abstract
BACKGROUND Antiproliferative agents used in drug-eluting stents (DES) attenuate atherosclerosis, yet DES implantation has been linked to endothelial dysfunction. The downstream effects of DES on new lesion formation have not been previously directly examined. We sought to compare the development of de novo stenoses and need for treatment in the downstream coronary vessel of patients treated with DES or a bare-metal stent. METHODS Angiographic images and procedural information were prospectively collected on 463 adults who underwent implantation of a single stent in a proximal coronary artery, had an appropriate control vessel for comparison, and subsequently returned for intervention. Propensity matching identified 89 pairs of patients. End points were defined as angiographic identification of a de novo stenosis or need for secondary intervention in the downstream vessel within 12 months of initial intervention. RESULTS In the overall (P < .01) and propensity-matched cohort (P = .01), there was reduced risk of new lesions downstream to DES. No difference was seen in respective control vessels (P = .14 and P = .99). A reduced need for downstream intervention with DES was seen in both the overall (P = .01) and propensity-matched cohorts (P = .04). No difference was seen in the control vessels (P = .98 and P = .36). Multivariate proportional hazards modeling of known atherosclerosis risk factors identified stent type as the sole predictor for downstream lesions (P < .01) and downstream events (P = .02). CONCLUSIONS Patients receiving DES appear less likely to develop downstream stenoses and events compared with patients receiving bare-metal stents, suggesting beneficial downstream drug delivery.
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Sengottuvel V, Fischer D. Facilitating axon regeneration in the injured CNS by microtubules stabilization. Commun Integr Biol 2011; 4:391-3. [PMID: 21966554 DOI: 10.4161/cib.4.4.15552] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Accepted: 03/21/2011] [Indexed: 12/12/2022] Open
Abstract
Traumatic CNS injuries often cause permanent, devastating disabilities due to a lack of regeneration of damaged axons. Next to an insufficient intrinsic capability of CNS neurons to regrow axons, also inhibitory molecules that are associated with the CNS myelin and the glial scar contribute to the failure of axonal regeneration. Strategies targeting the inhibitory molecules, their receptors or downstream signaling pathways result in little improvement of regeneration in vivo. However, the combination of such approaches together with measures that increase the intrinsic growth potential of neurons reportedly lead to a significantly better outcome. In this mini-review we outline and discuss a novel therapeutic strategy facilitating axon regeneration by directly targeting microtubule dynamics in axonal growth cones and reducing the inhibitory scar formation at the injury site by the anticancer drug Taxol. Moreover, we portray the mechanisms underlying the beneficial effects of Taxol and its potential as an adjuvant drug to accomplish substantial regeneration and functional recovery after CNS injuries in vivo.
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Affiliation(s)
- Vetrivel Sengottuvel
- Department of Experimental Neurology; Heinrich-Heine University of Düsseldorf; Düsseldorf, Germany
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Lourenço-Filho DD, Maranhão RC, Méndez-Contreras CA, Tavares ER, Freitas FR, Stolf NA. An artificial nanoemulsion carrying paclitaxel decreases the transplant heart vascular disease: A study in a rabbit graft model. J Thorac Cardiovasc Surg 2011; 141:1522-8. [DOI: 10.1016/j.jtcvs.2010.08.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2010] [Revised: 07/14/2010] [Accepted: 08/08/2010] [Indexed: 10/18/2022]
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Abstract
Mature retinal ganglion cells (RGCs) cannot normally regenerate axons into the injured optic nerve but can do so after lens injury. Astrocyte-derived ciliary neurotrophic factor and leukemia inhibitory factor have been identified as essential key factors mediating this effect. However, the outcome of this regeneration is still limited by inhibitors associated with the CNS myelin and the glial scar. The current study demonstrates that Taxol markedly enhanced neurite extension of mature RGCs and PC12 cells by stabilization of microtubules and desensitized axons toward myelin and chondroitin sulfate proteoglycan (CSPG) inhibition in vitro without reducing RhoA activation. In vivo, the local application of Taxol at the injury site of the optic nerve of rats enabled axons to regenerate beyond the lesion site but did not affect the intrinsic regenerative state of RGCs. Furthermore, Taxol treatment markedly increased lens injury-mediated axon regeneration in vivo, delayed glial scar formation, suppressed CSPG expression, and transiently reduced the infiltration of macrophages at the injury site. Thus, microtubule-stabilizing compounds such as Taxol might be promising candidates as adjuvant drugs in the treatment of CNS injuries particularly when combined with interventions stimulating the intrinsic regenerative state of neurons.
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Almeida CP, Vital CG, Contente TC, Maria DA, Maranhão RC. Modification of composition of a nanoemulsion with different cholesteryl ester molecular species: effects on stability, peroxidation, and cell uptake. Int J Nanomedicine 2010; 5:679-86. [PMID: 20957219 PMCID: PMC2948947 DOI: 10.2147/ijn.s12293] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2010] [Indexed: 12/04/2022] Open
Abstract
Purpose: Use of lipid nanoemulsions as carriers of drugs for therapeutic or diagnostic purposes has been increasingly studied. Here, it was tested whether modifications of core particle constitution could affect the characteristics and biologic properties of lipid nanoemulsions. Methods: Three nanoemulsions were prepared using cholesteryl oleate, cholesteryl stearate, or cholesteryl linoleate as main core constituents. Particle size, stability, pH, peroxidation of the nanoemulsions, and cell survival and uptake by different cell lines were evaluated. Results: It was shown that cholesteryl stearate nanoemulsions had the greatest particle size and all three nanoemulsions were stable during the 237-day observation period. The pH of the three nanoemulsion preparations tended to decrease over time, but the decrease in pH of cholesteryl stearate was smaller than that of cholesteryl oleate and cholesteryl linoleate. Lipoperoxidation was greater in cholesteryl linoleate than in cholesteryl oleate and cholesteryl stearate. After four hours’ incubation of human umbilical vein endothelial cells (HUVEC) with nanoemulsions, peroxidation was minimal in the presence of cholesteryl oleate and more pronounced with cholesteryl linoleate and cholesteryl stearate. In contrast, macrophage incubates showed the highest peroxidation rates with cholesteryl oleate. Cholesteryl linoleate induced the highest cell peroxidation rates, except in macrophages. Uptake of cholesteryl oleate nanoemulsion by HUVEC and fibroblasts was greater than that of cholesteryl linoleate and cholesteryl stearate. Uptake of the three nanoemulsions by monocytes was equal. Uptake of cholesteryl oleate and cholesteryl linoleate by macrophages was negligible, but macrophage uptake of cholesteryl stearate was higher. In H292 tumor cells, cholesteryl oleate showed the highest uptakes. HUVEC showed higher survival rates when incubated with cholesteryl stearate and smaller survival with cholesteryl linoleate. H292 survival was greater with cholesteryl stearate. Conclusion: Although all three nanoemulsion types were stable for a long period, considerable differences were observed in size, oxidation status, and cell survival and nanoemulsion uptake in all tested cell lines. Those differences may be helpful in protocol planning and interpretation of data from experiments with lipid nanoemulsions.
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Affiliation(s)
- Cristina P Almeida
- Lipid Metabolism Laboratory, Heart Institute (InCor), Medical School Hospital, University of São Paulo, São Paulo, Brazil
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