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Rastegari B, Ghamar Talepoor A, Khosropanah S, Doroudchi M. In Vitro Targeted Delivery of Simvastatin and Niacin to Macrophages Using Mannan-Grafted Magnetite Nanoparticles. ACS OMEGA 2024; 9:658-674. [PMID: 38222576 PMCID: PMC10785661 DOI: 10.1021/acsomega.3c06389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 11/25/2023] [Accepted: 11/29/2023] [Indexed: 01/16/2024]
Abstract
Atherosclerosis, a leading cause of mortality worldwide, involves various subsets of macrophages that contribute to its initiation and progression. Current treatment approaches focus on systemic, long-term administration of cholesterol-lowering antioxidants such as statins and certain vitamins, which unfortunately come with prolonged side effects. To overcome these drawbacks, a mannose-containing magnetic nanoparticle (NP) is introduced as a drug delivery system to specifically target macrophages in vitro using simvastatin or niacin and a combinational therapy approach that reduces local inflammation while avoiding unwanted side effects. The synthesized NPs exhibited superparamagnetic behavior, neutrally charged thin coating with a hydrodynamic size of 77.23 ± 13.90 nm, and a metallic core ranging from 15 to 25 nm. Efficient loading of niacin (87.21%) and simvastatin (75.36%) on the NPs was achieved at respective weights of 20.13 and 5.03 (w/w). In the presence of a mannan hydrolyzing enzyme, 79.51% of simvastatin and 67.23% of niacin were released from the NPs within 90 min, with a leakage rate below 19.22%. Additionally, the coated NPs showed no destructive effect on J774A macrophages up to a concentration of 200 μg/mL. Simvastatin-loaded NPs exhibited a minimal increase in IL-6 expression. The low dosage of simvastatin decreased both IL-6 and ARG1 expressions, while niacin and combined simvastatin/niacin increased the level of ARG1 expression significantly. Toxicity evaluations on human umbilical vein endothelial cells and murine liver cells revealed that free simvastatin administration caused significant toxicity, whereas the encapsulated forms of simvastatin, niacin, and a combination of simvastatin/niacin at equivalent concentrations exhibited no significant toxicity. Hence, the controlled release of the encapsulated form of simvastatin and niacin resulted in the effective modulation of macrophage polarization. The delivery system showed suitability for targeting macrophages to atherosclerotic plaque.
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Affiliation(s)
- Banafsheh Rastegari
- Diagnostic
Laboratory Sciences and Technology Research Center, School of Paramedical
Sciences, Shiraz University of Medical Sciences, Shiraz 71439-14693, Iran
- Department
of Immunology, School of Medicine, Shiraz
University of Medical Sciences, Shiraz 71348-45794, Iran
| | - Atefe Ghamar Talepoor
- Department
of Immunology, School of Medicine, Shiraz
University of Medical Sciences, Shiraz 71348-45794, Iran
- Immunology
Center for Excellence, School of Medicine, Shiraz University of Medical Sciences, Shiraz 71348-45794, Iran
| | - Shahdad Khosropanah
- Department
of Cardiology, School of Medicine, Shiraz
University of Medical Sciences, Shiraz 71348-45794, Iran
| | - Mehrnoosh Doroudchi
- Department
of Immunology, School of Medicine, Shiraz
University of Medical Sciences, Shiraz 71348-45794, Iran
- Immunology
Center for Excellence, School of Medicine, Shiraz University of Medical Sciences, Shiraz 71348-45794, Iran
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Yan J, Yin Q, Nie H, Liang J, Liu XR, Li Y, Xiao H. Prodigiosin as an antibiofilm agent against multidrug-resistant Staphylococcus aureus. BIOFOULING 2023:1-15. [PMID: 37369552 DOI: 10.1080/08927014.2023.2226613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 06/05/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023]
Abstract
Staphylococcus aureus is known for forming bacterial biofilms that confer increased antimicrobial resistance. Combining antibiotics with antibiofilm agents is an alternative approach, but the antibiofilm ability of prodigiosin (PG), a potential antibiotic synergist, against antimicrobial-resistant (AMR) S. aureus remains to be understood. The antibiofilm activity of PG against 29 clinical AMR S. aureus strains was evaluated using crystal violet staining, and its synergistic effects with vancomycin (VAN) was confirmed using the checkerboard test. The viability and metabolic activity of biofilms and planktonic cells were also assessed. The results revealed that PG exhibited promising inhibitory activity against biofilm formation and synergistic activity with VAN. It effectively reduced the metabolic activity of biofilms and suppressed the production of exopolysaccharides, which might be attributed to the downregulation of biofilm-related genes such as sarA, agrA, and icaA. These findings suggest that PG could be used as a preventive coating or adjuvant against biofilms in clinical settings.
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Affiliation(s)
- Jing Yan
- Department of Health Laboratory Technology, School of Public Health, Chongqing Medical University, Chongqing, PR China
| | - Qi Yin
- Department of Health Laboratory Technology, School of Public Health, Chongqing Medical University, Chongqing, PR China
| | - Hao Nie
- Department of Health Laboratory Technology, School of Public Health, Chongqing Medical University, Chongqing, PR China
| | - Jinyou Liang
- Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, PR China
| | - Xiang-Ru Liu
- Department of Health Laboratory Technology, School of Public Health, Chongqing Medical University, Chongqing, PR China
| | - Yingli Li
- Department of Health Laboratory Technology, School of Public Health, Chongqing Medical University, Chongqing, PR China
| | - Hong Xiao
- Department of Health Laboratory Technology, School of Public Health, Chongqing Medical University, Chongqing, PR China
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Wu Y, Jin W, Wang S, Li W, Tao Y, Wang J, Yang K, Zhang W, Gui L, Ge F. Preparation of an amphiphilic peptide (P13) with proton sponge effect and analysis of its antitumor activity. NANOTECHNOLOGY 2023; 34:245101. [PMID: 36878001 DOI: 10.1088/1361-6528/acc18b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 03/05/2023] [Indexed: 06/18/2023]
Abstract
In order to prevent drugs from being captured and degraded by the acidic environment of organelles, such as lysosomes, after entering cells, this study designed and synthesized a novel carrier amphiphilic polypeptide (DGRHHHLLLAAAA), designated P13, for use as a tumor-targeting drug delivery vehicle. The P13 peptide was synthesized by the solid phase synthesis method, and its self-assembly behavior and drug-loading capacity in aqueous solution were studied and characterizedin vitro. Doxorubicin (DOX) was loaded by dialysis method, and P13 and DOX were mixed at a mass ratio of 6:1 to form regular rounded globules. The acid-base buffering capacity of P13 was investigated determined by acid-base titration. The results revealed that P13 had excellent acid-base buffering capacity, a critical micelle concentration value of about 0.000 21 g l-1, and the particle size of P13-Dox nanospheres was 167 nm. The drug encapsulation efficiency and drug loading capacity of micelles were 20.40 ± 1.21% and 21.25 ± 2.79%, respectively. At the concentration of 50μg ml-1of P13-DOX , the inhibition rate was 73.35%. The results of thein vivoantitumor activity assay in mice showed that P13-DOX also exhibited excellent inhibitory effect on tumor growth, compared with the tumor weight of 1.1 g in the control group, the tumor weight in the P13-DOX-treated group was only 0.26 g. Additionally, the results of hematoxylin and eosin staining of the organs showed that P13-DOX had no damaging effect on normal tissues. The novel amphiphilic peptide P13 with proton sponge effect designed and prepared in this study is expected to be a promising tumor-targeting drug carrier with excellent application potential.
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Affiliation(s)
- Yujia Wu
- School of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, People's Republic of China
| | - Weihao Jin
- School of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, People's Republic of China
| | - Shanyi Wang
- School of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, People's Republic of China
| | - Wanzhen Li
- School of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, People's Republic of China
| | - Yugui Tao
- School of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, People's Republic of China
| | - Jun Wang
- School of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, People's Republic of China
| | - Kai Yang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection & School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123 Jiangsu, People's Republic of China
| | - Weiwei Zhang
- School of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, People's Republic of China
| | - Lin Gui
- Department of Microbiology and Immunology, Wannan Medical College, Wuhu, Anhui 241002, People's Republic of China
| | - Fei Ge
- School of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, People's Republic of China
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