1
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Konwar B, De S, Das G, Ramesh A. Napthalimide-based nuclease inhibitor: A multifunctional therapeutic material to bolster MRSA uptake by macrophage-like cells and mitigate pathogen adhesion on orthopaedic implant. Int J Biol Macromol 2024; 277:134023. [PMID: 39032881 DOI: 10.1016/j.ijbiomac.2024.134023] [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: 11/18/2023] [Revised: 07/14/2024] [Accepted: 07/17/2024] [Indexed: 07/23/2024]
Abstract
The healthcare burden rendered by methicillin-resistant Staphylococcus aureus (MRSA) warrants the development of therapeutics that offer a distinct benefit in the clinics as compared to conventional antibiotics. The present study describes the potential of napthalimide-based synthetic ligands (C1-C3) as inhibitors of the staphylococcal nuclease known as micrococcal nuclease (MNase), a key virulence factor of the pathogen. Amongst the ligands, the most potent MNase inhibitor C1 rendered non-competitive inhibition, reduced MNase turnover number (Kcat) and catalytic efficiency (Kcat/Km) with an IC50 value of ~950 nM. CD spectroscopy suggested distortion of MNase conformation in presence of C1. Flow cytometry and confocal microscopy indicated that C1 restored the ability of activated THP-1 cells to engulf DNA-entrapped MRSA cells. Interestingly, C1 could inhibit MRSA adhesion onto collagen. For potential application, C1-loaded pluronic F-127 micellar nanocarrier (C1-PMC) was generated, wherein the anti-adhesion activity of the pluronic carrier (PMC) and C1 was harnessed in tandem to deter MRSA cell adhesion onto collagen. MRSA biofilm formation was hindered on C1-PMC-coated titanium (Ti) wire, while eluates from C1-PMC-coated Ti wires were non-toxic to HEK 293, MG-63 and THP-1 cells. The multifunctional C1 provides a blueprint for designing therapeutic materials that hold translational potential for mitigation of MRSA infections.
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Affiliation(s)
- Barlina Konwar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Sagnik De
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Gopal Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
| | - Aiyagari Ramesh
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
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2
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Laureano AF, Vigato AA, Puzer L, de Araujo DR. Recombinant scFv-Fc Anti-kallikrein 7 Antibody-Loaded Thermosensitive Hydrogels Against Skin Desquamation Disorders. ACS APPLIED BIO MATERIALS 2024; 7:4486-4496. [PMID: 38886921 PMCID: PMC11253099 DOI: 10.1021/acsabm.4c00371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 06/01/2024] [Accepted: 06/04/2024] [Indexed: 06/20/2024]
Abstract
Human tissue kallikrein-related peptidase 7 (KLK7) is a serine protease implicated in the physiology of skin desquamation, and its uncontrolled activity can lead to chronic diseases such as psoriasis, atopic dermatitis, and Netherton syndrome. For this reason, kallikrein 7 has been identified as a potential therapeutic target. This work aimed to evaluate Pluronic (PL) hydrogels as topical carriers of four specific scFv-Fc antibodies to inhibit KLK7. The hydrogels comprised PL F127 (30% w/v) alone and a binary F127/P123 (28-2% w/v) system. Each formulation was loaded with 1 μg/mL of each antibody and characterized by physicochemical and pharmaceutical techniques, considering antibody-micelle interactions and hydrogel behavior as smart delivery systems. Results showed that the antibodies were successfully loaded into the PL-based systems, and the sol-gel transition temperature was shifted to high values after the P123 addition. The antibodies released from the gels preserved their rheological properties (G' > G'', 35- to 41-fold) and inhibitory activity against KLK7, even after 24 h. This work presented potential agents targeting KLK7 that may provide strategies for treating skin abnormalities.
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Affiliation(s)
- Ana Flávia
Santarine Laureano
- Department
of Surgery, Center for Transplantation Sciences, Massachusetts General Hospital & Harvard Medical School, CNY149 13th Street, Charlestown, Boston, Massachusetts 02129, United States
- Centro
de Ciências Naturais e Humanas, Universidade
Federal do ABC, Al. da Universidade, s/n-Anchieta, São
Bernardo do Campo, SP 09606-045, Brazil
| | - Aryane Alves Vigato
- Department
of Biomedical Science (BMV), Faculty of Health and Society, Malmö University, Malmö 20506, Sweden
- Biofilms−Research
Center for Biointerfaces, Malmö University, Malmö 20506, Sweden
| | - Luciano Puzer
- Centro
de Ciências Naturais e Humanas, Universidade
Federal do ABC, Al. da Universidade, s/n-Anchieta, São
Bernardo do Campo, SP 09606-045, Brazil
| | - Daniele Ribeiro de Araujo
- Centro
de Ciências Naturais e Humanas, Universidade
Federal do ABC, Av. dos
Estados, 5001, Bloco A, Torre 3, Santo André, SP 09210-580, Brazil
- Departamento
de Biofísica, Escola Paulista de Medicina, Universidade Federal de São Paulo, Rua Botucatu, 862, Vila Clementino, Sao Paulo, SP 04023-062, Brazil
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3
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Cruz JT, Álvarez K, Orozco VH, Rojas M, Morales-Luckie RA, Giraldo LF. PLGA-LEC/F127 hybrid nanoparticles loaded with curcumin and their modulatory effect on monocytes. Nanomedicine (Lond) 2024:1-17. [PMID: 38920352 DOI: 10.1080/17435889.2024.2357530] [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: 03/14/2024] [Accepted: 05/16/2024] [Indexed: 06/27/2024] Open
Abstract
Aim: To investigate the effect of surfactant type on curcumin-loaded (CUR) PLGA nanoparticles (NPs) to modulate monocyte functions. Materials & methods: The nanoprecipitation method was used, and PLGA NPs were designed using Pluronic F127 (F127) and/or lecithin (LEC) as surfactants. Results: The Z-average of the NPs was <200 nm, they had a spherical shape, Derjaguin-Muller-Toporov modulus >0.128 MPa, they were stable during storage at 4°C, ζ-potential ∼-40 mV, polydispersity index <0.26 and % EE of CUR >94%. PLGA-LEC/F127 NPs showed favorable physicochemical and nanomechanical properties. These NPs were bound and internalized mainly by monocytes, suppressed monocyte-induced reactive oxygen species production, and decreased the ability of monocytes to modulate T-cell proliferation. Conclusion: These results demonstrate the potential of these NPs for targeted therapy.
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Affiliation(s)
- Jennifer T Cruz
- Polymer Research Laboratory (LIPOL), Institute of Chemistry, University of Antioquia (UdeA), Medellín, Colombia
- Faculty of Basic Sciences, University of the Amazonia (UDLA), Florencia, Colombia
| | - Karen Álvarez
- Cellular Immunology & Immunogenetics Group (GICIG), University Research Headquarters (SIU), University of Antioquia (UdeA), Medellín, Colombia
| | - Víctor H Orozco
- Polymer Research Laboratory (LIPOL), Institute of Chemistry, University of Antioquia (UdeA), Medellín, Colombia
| | - Mauricio Rojas
- Cellular Immunology & Immunogenetics Group (GICIG), University Research Headquarters (SIU), University of Antioquia (UdeA), Medellín, Colombia
| | - Raul A Morales-Luckie
- Autonomous University of the State of Mexico, Sustainable Chemistry Research Joint Center UAEM-UNAM (CCIQS), Toluca, Estado de México, México
| | - Luis F Giraldo
- Polymer Research Laboratory (LIPOL), Institute of Chemistry, University of Antioquia (UdeA), Medellín, Colombia
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4
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Zhao Y, Li X, Sun N, Mao Y, Ma T, Liu X, Cheng T, Shao X, Zhang H, Huang X, Li J, Huang N, Wang H. Injectable Double Crosslinked Hydrogel-Polypropylene Composite Mesh for Repairing Full-Thickness Abdominal Wall Defects. Adv Healthc Mater 2024; 13:e2304489. [PMID: 38433421 DOI: 10.1002/adhm.202304489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/19/2024] [Indexed: 03/05/2024]
Abstract
Abdominal wall defects are common clinical diseases, and mesh repair is the standard treatment method. The most commonly used polypropylene (PP) mesh in clinical practice has the advantages of good mechanical properties, stable performance, and effective tissue integration effect. However, direct contact between abdominal viscera and PP mesh can lead to severe abdominal adhesions. To prevent this, the development of a hydrogel-PP composite mesh with anti-adhesive properties may be an effective measure. Herein, biofunctional hydrogel loaded with rosmarinic acid is developed by modifying chitosan and Pluronic F127, which possesses suitable physical and chemical properties and commendable in vitro biocompatibility. In the repair of full-thickness abdominal wall defects in rats, hydrogels are injected onto the surface of PP mesh and applied to intraperitoneal repair. The results indicate that the use of hydrogel-PP composite mesh can alleviate abdominal adhesions resulting from traditional PP mesh implantation by decreasing local inflammatory response, reducing oxidative stress, and regulating the fibrinolytic system. Combined with the tissue integration ability of PP mesh, hydrogel-PP composite mesh has great potential for repairing full-thickness abdominal wall defects.
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Affiliation(s)
- Yixin Zhao
- Breast Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, 266071, China
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Xiaopei Li
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Ni Sun
- Department of Radiation Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210002, China
| | - Yan Mao
- Breast Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, 266071, China
| | - Teng Ma
- Breast Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, 266071, China
| | - Xiangping Liu
- Breast Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, 266071, China
| | - Tao Cheng
- Department of General Surgery, The Affiliated Zhongda Hospital of Southeast University, Nanjing, 210009, China
| | - Xiangyu Shao
- Department of General Surgery, The Affiliated Zhongda Hospital of Southeast University, Nanjing, 210009, China
| | - Haifeng Zhang
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Xianggang Huang
- School of Medicine, Southeast University, Nanjing, 210009, China
| | - Junsheng Li
- School of Medicine, Southeast University, Nanjing, 210009, China
- Department of General Surgery, The Affiliated Zhongda Hospital of Southeast University, Nanjing, 210009, China
| | - Ningping Huang
- School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Haibo Wang
- Breast Disease Center, The Affiliated Hospital of Qingdao University, Qingdao, 266071, China
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5
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Abdelgawad MS, Haward SJ, Shen AQ, Rosti ME. From yield stress to elastic instabilities: Tuning the extensional behavior of elastoviscoplastic fluids. PNAS NEXUS 2024; 3:pgae227. [PMID: 38911595 PMCID: PMC11192060 DOI: 10.1093/pnasnexus/pgae227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 05/30/2024] [Indexed: 06/25/2024]
Abstract
In this study, we delve into the intricacies of elastoviscoplastic (EVP) fluids, particularly focusing on how polymer additives influence their extensional behavior. Our findings reveal that polymer additives significantly alter the extensional properties of the EVP fluids, such as relaxation time and extensional stresses while having negligible impact on the shear rheology. Interestingly, the modified fluids exhibit a transition from yield stress-like behavior to viscoelastic-like behavior under high extensional rates, ultimately leading to destabilization under extreme deformation. This research enhances the fundamental understanding of EVP fluids and highlights potential advancements in applications, especially in precision-demanding fields like 3D printing.
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Affiliation(s)
- Mohamed S Abdelgawad
- Complex Fluids and Flows Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa 904-0495, Japan
| | - Simon J Haward
- Micro/Bio/Nanofluidics Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa 904-0495, Japan
| | - Amy Q Shen
- Micro/Bio/Nanofluidics Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa 904-0495, Japan
| | - Marco E Rosti
- Complex Fluids and Flows Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa 904-0495, Japan
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6
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Faisal MM, Gomaa E, Ibrahim AE, El Deeb S, Al-Harrasi A, Ibrahim TM. Verapamil-Loaded Cubosomes for Enhancing Intranasal Drug Delivery: Development, Characterization, Ex Vivo Permeation, and Brain Biodistribution Studies. AAPS PharmSciTech 2024; 25:95. [PMID: 38710921 DOI: 10.1208/s12249-024-02814-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 04/20/2024] [Indexed: 05/08/2024] Open
Abstract
Verapamil hydrochloride (VRP), an antihypertensive calcium channel blocker drug has limited bioavailability and short half-life when taken orally. The present study was aimed at developing cubosomes containing VRP for enhancing its bioavailability and targeting to brain for cluster headache (CH) treatment as an off-label use. Factorial design was conducted to analyze the impact of different components on entrapment efficiency (EE%), particle size (PS), zeta potential (ZP), and percent drug release. Various in-vitro characterizations were performed followed by pharmacokinetic and brain targeting studies. The results revealed the significant impact of glyceryl monooleate (GMO) on increasing EE%, PS, and ZP of cubosomes with a negative influence on VRP release. The remarkable effect of Poloxamer 407 (P407) on decreasing EE%, PS, and ZP of cubosomes was observed besides its influence on accelerating VRP release%. The DSC thermograms indicated the successful entrapment of the amorphous state of VRP inside the cubosomes. The design suggested an optimized formulation containing GMO (50% w/w) and P407 (5.5% w/w). Such formulation showed a significant increase in drug permeation through nasal mucosa with high Er value (2.26) when compared to VRP solution. Also, the histopathological study revealed the safety of the utilized components used in the cubosomes preparation. There was a significant enhancement in the VRP bioavailability when loaded in cubosomes owing to its sustained release favored by its direct transport to brain. The I.N optimized formulation had greater BTE% and DTP% at 183.53% and 90.19%, respectively in comparison of 41.80% and 59% for the I.N VRP solution.
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Affiliation(s)
- Mennatullah M Faisal
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Eman Gomaa
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Adel Ehab Ibrahim
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa, 616, Sultanate of Oman.
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, 38106, Brunswick, Germany.
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa, 616, Sultanate of Oman
| | - Tarek M Ibrahim
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
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7
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Xu D, Li Y, Yin S, Huang F. Strategies to address key challenges of metallacycle/metallacage-based supramolecular coordination complexes in biomedical applications. Chem Soc Rev 2024; 53:3167-3204. [PMID: 38385584 DOI: 10.1039/d3cs00926b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Owing to their capacity for dynamically linking two or more functional molecules, supramolecular coordination complexes (SCCs), exemplified by two-dimensional (2D) metallacycles and three-dimensional (3D) metallacages, have gained increasing significance in biomedical applications. However, their inherent hydrophobicity and self-assembly driven by heavy metal ions present common challenges in their applications. These challenges can be overcome by enhancing the aqueous solubility and in vivo circulation stability of SCCs, alongside minimizing their side effects during treatment. Addressing these challenges is crucial for advancing the fundamental research of SCCs and their subsequent clinical translation. In this review, drawing on extensive contemporary research, we offer a thorough and systematic analysis of the strategies employed by SCCs to surmount these prevalent yet pivotal obstacles. Additionally, we explore further potential challenges and prospects for the broader application of SCCs in the biomedical field.
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Affiliation(s)
- Dongdong Xu
- Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education, College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, P. R. China.
| | - Yang Li
- Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education, College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, P. R. China.
| | - Shouchun Yin
- Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education, College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, P. R. China.
| | - Feihe Huang
- Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang University, Hangzhou 310058, P. R. China.
- Zhejiang-Israel Joint Laboratory of Self-Assembling Functional Materials, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 311215, P. R. China
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8
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Shi W, Jang S, Kuss MA, Alimi OA, Liu B, Palik J, Tan L, Krishnan MA, Jin Y, Yu C, Duan B. Digital Light Processing 4D Printing of Poloxamer Micelles for Facile Fabrication of Multifunctional Biocompatible Hydrogels as Tailored Wearable Sensors. ACS NANO 2024; 18:7580-7595. [PMID: 38422400 DOI: 10.1021/acsnano.3c12928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
The lack of both digital light processing (DLP) compatible and biocompatible photopolymers, along with inappropriate material properties required for wearable sensor applications, substantially hinders the employment of DLP 3D printing in the fabrication of multifunctional hydrogels. Herein, we discovered and implemented a photoreactive poloxamer derivative, Pluronic F-127 diacrylate, which overcomes these limitations and is optimized to achieve DLP 3D printed micelle-based hydrogels with high structural complexity, resolution, and precision. In addition, the dehydrated hydrogels exhibit a shape-memory effect and are conformally attached to the geometry of the detection point after rehydration, which implies the 4D printing characteristic of the fabrication process and is beneficial for the storage and application of the device. The excellent cytocompatibility and in vivo biocompatibility further strengthen the potential application of the poloxamer micelle-based hydrogels as a platform for multifunctional wearable systems. After processing them with a lithium chloride (LiCl) solution, multifunctional conductive ionic hydrogels with antifreezing and antiswelling properties along with good transparency and water retention are easily prepared. As capacitive flexible sensors, the DLP 3D printed micelle-based hydrogel devices exhibit excellent sensitivity, cycling stability, and durability in detecting multimodal deformations. Moreover, the DLP 3D printed conductive hydrogels are successfully applied as real-time human motion and tactile sensors with satisfactory sensing performances even in a -20 °C low-temperature environment.
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Affiliation(s)
- Wen Shi
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Seonmin Jang
- Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Mitchell A Kuss
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Olawale A Alimi
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Bo Liu
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Jayden Palik
- Department of Mechanical & Materials Engineering, University of Nebraska, Lincoln, Lincoln, Nebraska 68588, United States
| | - Li Tan
- Department of Mechanical & Materials Engineering, University of Nebraska, Lincoln, Lincoln, Nebraska 68588, United States
| | - Mena Asha Krishnan
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Yifei Jin
- Department of Mechanical Engineering, University of Nevada, Reno, Reno, Nevada 89557, United States
| | - Cunjiang Yu
- Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Biomedical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Materials Science and Engineering, Materials Research Institute, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Bin Duan
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
- Department of Mechanical & Materials Engineering, University of Nebraska, Lincoln, Lincoln, Nebraska 68588, United States
- Department of Surgery, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
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9
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Farmer MH, Musa OM, Haug I, Naumann S, Armes SP. Synthesis of Poly(propylene oxide)-Poly( N,N'-dimethylacrylamide) Diblock Copolymer Nanoparticles via Reverse Sequence Polymerization-Induced Self-Assembly in Aqueous Solution. Macromolecules 2024; 57:317-327. [PMID: 38222027 PMCID: PMC10782481 DOI: 10.1021/acs.macromol.3c01939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/17/2023] [Accepted: 11/24/2023] [Indexed: 01/16/2024]
Abstract
Sterically-stabilized diblock copolymer nanoparticles comprising poly(propylene oxide) (PPO) cores are prepared via reverse sequence polymerization-induced self-assembly (PISA) in aqueous solution. N,N'-Dimethylacrylamide (DMAC) acts as a cosolvent for the weakly hydrophobic trithiocarbonate-capped PPO precursor. Reversible addition-fragmentation chain transfer (RAFT) polymerization of DMAC is initially conducted at 80% w/w solids with deoxygenated water. At 30-60% DMAC conversion, the reaction mixture is diluted to 5-25% w/w solids. The PPO chains become less solvated as the DMAC monomer is consumed, which drives in situ self-assembly to form aqueous dispersions of PPO-core nanoparticles of 120-190 nm diameter at 20 °C. Such RAFT polymerizations are well-controlled (Mw/Mn ≤ 1.31), and more than 99% DMAC conversion is achieved. The resulting nanoparticles exhibit thermoresponsive character: dynamic light scattering and transmission electron microscopy studies indicate the formation of more compact spherical nanoparticles of approximately 33 nm diameter on heating to 70 °C. Furthermore, 15-25% w/w aqueous dispersions of such nanoparticles formed micellar gels that undergo thermoreversible (de)gelation on cooling to 5 °C.
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Affiliation(s)
- Matthew
A. H. Farmer
- Department
of Chemistry, University of Sheffield, Dainton Building, Brook Hill, Sheffield, South Yorkshire S3 7HF, U.K.
| | - Osama M. Musa
- Ashland
Specialty Ingredients, 1005 US 202/206, Bridgewater, New Jersey 08807, United States
| | - Iris Haug
- Institute
of Polymer Chemistry, University of Stuttgart, 70569 Stuttgart, Germany
| | - Stefan Naumann
- Institute
of Polymer Chemistry, University of Stuttgart, 70569 Stuttgart, Germany
| | - Steven P. Armes
- Department
of Chemistry, University of Sheffield, Dainton Building, Brook Hill, Sheffield, South Yorkshire S3 7HF, U.K.
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10
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Shin MD, Jung E, Moreno‐Gonzalez MA, Ortega‐Rivera OA, Steinmetz NF. Pluronic F127 "nanoarmor" for stabilization of Cowpea mosaic virus immunotherapy. Bioeng Transl Med 2024; 9:e10574. [PMID: 38193118 PMCID: PMC10771553 DOI: 10.1002/btm2.10574] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 06/01/2023] [Accepted: 06/10/2023] [Indexed: 01/10/2024] Open
Abstract
Our lab demonstrated that intratumoral Cowpea mosaic virus (CPMV) is a potent antitumor immunotherapy when used as in situ vaccine. As we pave the way for human clinical translation, formulation chemistry needs to be optimized for long-term storage of the drug candidate. In this work, CPMV was nanoengineered with Pluronic F127 to realize liquid and gel formulations which mitigate structural changes and RNA release during long-term storage. We evaluated the CPMV-F127 formulations for their stability and biological activity through a combination of in vitro assays and efficacy in vivo using a B16F10 murine melanoma model. Results demonstrate that both F127 liquid and gel formulations preserve CPMV structure and function following extended periods of thermal incubation at 4°C, 25°C, and 37°C. Heat-incubated CPMV without formulation resulted in structural changes and inferior in vivo efficacy. In stark contrast, in vivo efficacy was preserved when CPMV was formulated and protected with the F127 "nanoarmor."
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Affiliation(s)
- Matthew D. Shin
- Department of NanoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
- Center for Nano‐ImmunoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
| | - Eunkyeong Jung
- Department of NanoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
- Center for Nano‐ImmunoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
| | - Miguel A. Moreno‐Gonzalez
- Department of NanoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
- Center for Nano‐ImmunoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
| | - Oscar A. Ortega‐Rivera
- Department of NanoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
- Center for Nano‐ImmunoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
| | - Nicole F. Steinmetz
- Department of NanoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
- Center for Nano‐ImmunoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
- Department of BioengineeringUniversity of CaliforniaLa JollaCaliforniaUSA
- Department of RadiologyUniversity of CaliforniaLa JollaCaliforniaUSA
- Moores Cancer CenterUniversity of CaliforniaLa JollaCaliforniaUSA
- Institute for Materials Discovery and Design, Department of NanoEngineeringUniversity of CaliforniaLa JollaCaliforniaUSA
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11
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Sharma H, Dar TA, Wijayasinghe YS, Sahoo D, Poddar NK. Nano-Osmolyte Conjugation: Tailoring the Osmolyte-Protein Interactions at the Nanoscale. ACS OMEGA 2023; 8:47367-47379. [PMID: 38144115 PMCID: PMC10733987 DOI: 10.1021/acsomega.3c07248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 12/26/2023]
Abstract
Osmolytes are small organic compounds accumulated at higher concentrations in the cell under various stress conditions like high temperature, high salt, high pressure, etc. Osmolytes mainly include four major classes of compounds including sugars, polyols, methylamines, and amino acids and their derivatives. In addition to their ability to maintain protein stability and folding, these osmolytes, also termed as chemical chaperones, can prevent protein misfolding and aggregation. Although being efficient protein folders and stabilizers, these osmolytes exhibit certain unavoidable limitations such as nearly molar concentrations of osmolytes being required for their effect, which is quite difficult to achieve inside a cell or in the extracellular matrix due to nonspecificity and limited permeability of the blood-brain barrier system and reduced bioavailability. These limitations can be overcome to a certain extent by using smart delivery platforms for the targeted delivery of osmolytes to the site of action. In this context, osmolyte-functionalized nanoparticles, termed nano-osmolytes, enhance the protein stabilization and chaperone efficiency of osmolytes up to 105 times in certain cases. For example, sugars, polyols, and amino acid functionalized based nano-osmolytes have shown tremendous potential in preventing protein aggregation. The enhanced potential of nano-osmolytes can be attributed to their high specificity at low concentrations, high tunability, amphiphilicity, multivalent complex formation, and efficient drug delivery system. Keeping in view the promising potential of nano-osmolytes conjugation in tailoring the osmolyte-protein interactions, as compared to their molecular forms, the present review summarizes the recent advancements of the nano-osmolytes that enhance the protein stability/folding efficiency and ability to act as artificial chaperones with increased potential to prevent protein misfolding disorders. Some of the potential nano-osmolyte aggregation inhibitors have been highlighted for large-scale screening with future applications in aggregation disorders. The synthesis of nano-osmolytes by numerous approaches and future perspectives are also highlighted.
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Affiliation(s)
- Hemlata Sharma
- Department
of Biosciences, Manipal University Jaipur, Jaipur-Ajmer Express Highway, Dehmi
Kalan, Near GVK Toll Plaza, Jaipur, Rajasthan 303007, India
| | - Tanveer Ali Dar
- Department
of Clinical Biochemistry, University of
Kashmir, Srinagar 190006, Jammu and Kashmir India
| | | | - Dibakar Sahoo
- School
of Physics, Sambalpur University, Jyoti Vihar, Burla 768019, Odisha, India
| | - Nitesh Kumar Poddar
- Department
of Biosciences, Manipal University Jaipur, Jaipur-Ajmer Express Highway, Dehmi
Kalan, Near GVK Toll Plaza, Jaipur, Rajasthan 303007, India
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12
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Qian Y, Lu S, Meng J, Chen W, Li J. Thermo-Responsive Hydrogels Coupled with Photothermal Agents for Biomedical Applications. Macromol Biosci 2023; 23:e2300214. [PMID: 37526220 DOI: 10.1002/mabi.202300214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 07/04/2023] [Indexed: 08/02/2023]
Abstract
Intelligent hydrogels are materials with abilities to change their chemical nature or physical structure in response to external stimuli showing promising potential in multitudinous applications. Especially, photo-thermo coupled responsive hydrogels that are prepared by encapsulating photothermal agents into thermo-responsive hydrogel matrix exhibit more attractive advantages in biomedical applications owing to their spatiotemporal control and precise therapy. This work summarizes the latest progress of the photo-thermo coupled responsive hydrogel in biomedical applications. Three major elements of the photo-thermo coupled responsive hydrogel, i.e., thermo-responsive hydrogel matrix, photothermal agents, and construction methods are introduced. Furthermore, the recent developments of these hydrogels for biomedical applications are described with some selected examples. Finally, the challenges and future perspectives for photo-thermo coupled responsive hydrogels are outlined.
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Affiliation(s)
- Yafei Qian
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Central South University, Changsha, 410008, China
| | - Sha Lu
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Central South University, Changsha, 410008, China
| | - Jianqiang Meng
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Central South University, Changsha, 410008, China
| | - Wansong Chen
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Central South University, Changsha, 410008, China
| | - Juan Li
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Central South University, Changsha, 410008, China
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13
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Borbolla-Jiménez FV, García-Aguirre IA, Del Prado-Audelo ML, Hernández-Hernández O, Cisneros B, Leyva-Gómez G, Magaña JJ. Development of a Polymeric Pharmacological Nanocarrier System as a Potential Therapy for Spinocerebellar Ataxia Type 7. Cells 2023; 12:2735. [PMID: 38067163 PMCID: PMC10706302 DOI: 10.3390/cells12232735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/08/2023] [Accepted: 11/16/2023] [Indexed: 12/18/2023] Open
Abstract
Spinocerebellar ataxia type 7 (SCA7) is an autosomal-dominant inherited disease characterized by progressive ataxia and retinal degeneration. SCA7 belongs to a group of neurodegenerative diseases caused by an expanded CAG repeat in the disease-causing gene, resulting in aberrant polyglutamine (polyQ) protein synthesis. PolyQ ataxin-7 is prone to aggregate in intracellular inclusions, perturbing cellular processes leading to neuronal death in specific regions of the central nervous system (CNS). Currently, there is no treatment for SCA7; however, a promising approach successfully applied to other polyQ diseases involves the clearance of polyQ protein aggregates through pharmacological activation of autophagy. Nonetheless, the blood-brain barrier (BBB) poses a challenge for delivering drugs to the CNS, limiting treatment effectiveness. This study aimed to develop a polymeric nanocarrier system to deliver therapeutic agents across the BBB into the CNS. We prepared poly(lactic-co-glycolic acid) nanoparticles (NPs) modified with Poloxamer188 and loaded with rapamycin to enable NPs to activate autophagy. We demonstrated that these rapamycin-loaded NPs were successfully taken up by neuronal and glial cells, demonstrating high biocompatibility without adverse effects. Remarkably, rapamycin-loaded NPs effectively cleared mutant ataxin-7 aggregates in a SCA7 glial cell model, highlighting their potential as a therapeutic approach to fight SCA7 and other polyQ diseases.
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Affiliation(s)
- Fabiola V. Borbolla-Jiménez
- Laboratorio de Medicina Genómica, Departamento de Genética (CENIAQ), Instituto Nacional de Rehabilitación-Luis Guillermo Ibarra Ibarra (INR-LGII), Ciudad de México 14389, Mexico; (F.V.B.-J.); (O.H.-H.)
- Programa de Ciencias Biomédicas, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Ciudad de México 04510, Mexico
| | - Ian A. García-Aguirre
- Departamento de Bioingeniería, Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Ciudad de México 14380, Mexico; (I.A.G.-A.); (M.L.D.P.-A.)
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados (CINVESTAV-IPN), Ciudad de México 07360, Mexico;
| | - María Luisa Del Prado-Audelo
- Departamento de Bioingeniería, Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Ciudad de México 14380, Mexico; (I.A.G.-A.); (M.L.D.P.-A.)
| | - Oscar Hernández-Hernández
- Laboratorio de Medicina Genómica, Departamento de Genética (CENIAQ), Instituto Nacional de Rehabilitación-Luis Guillermo Ibarra Ibarra (INR-LGII), Ciudad de México 14389, Mexico; (F.V.B.-J.); (O.H.-H.)
| | - Bulmaro Cisneros
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados (CINVESTAV-IPN), Ciudad de México 07360, Mexico;
| | - Gerardo Leyva-Gómez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Ciudad de México 04510, Mexico
| | - Jonathan J. Magaña
- Laboratorio de Medicina Genómica, Departamento de Genética (CENIAQ), Instituto Nacional de Rehabilitación-Luis Guillermo Ibarra Ibarra (INR-LGII), Ciudad de México 14389, Mexico; (F.V.B.-J.); (O.H.-H.)
- Programa de Ciencias Biomédicas, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Ciudad de México 04510, Mexico
- Departamento de Bioingeniería, Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Ciudad de México 14380, Mexico; (I.A.G.-A.); (M.L.D.P.-A.)
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14
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Tullii G, Gutierrez-Fernandez E, Ronchi C, Bellacanzone C, Bondi L, Criado-Gonzalez M, Lagonegro P, Moccia F, Cramer T, Mecerreyes D, Martín J, Antognazza MR. Bimodal modulation of in vitro angiogenesis with photoactive polymer nanoparticles. NANOSCALE 2023; 15:18716-18726. [PMID: 37953671 DOI: 10.1039/d3nr02743k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
Angiogenesis is a fundamental process in biology, given the pivotal role played by blood vessels in providing oxygen and nutrients to tissues, thus ensuring cell survival. Moreover, it is critical in many life-threatening pathologies, like cancer and cardiovascular diseases. In this context, conventional treatments of pathological angiogenesis suffer from several limitations, including low bioavailability, limited spatial and temporal resolution, lack of specificity and possible side effects. Recently, innovative strategies have been explored to overcome these drawbacks based on the use of exogenous nano-sized materials and the treatment of the endothelial tissue with optical or electrical stimuli. Here, conjugated polymer-based nanoparticles are proposed as exogenous photo-actuators, thus combining the advantages offered by nanotechnology with those typical of optical stimulation. Light excitation can achieve high spatial and temporal resolution, while permitting minimal invasiveness. Interestingly, the possibility to either enhance (≈+30%) or reduce (up to -65%) the angiogenic capability of model endothelial cells is demonstrated, by employing different polymer beads, depending on the material type and the presence/absence of the light stimulus. In vitro results reported here represent a valuable proof of principle of the reliability and efficacy of the proposed approach and should be considered as a promising step towards a paradigm shift in therapeutic angiogenesis.
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Affiliation(s)
- Gabriele Tullii
- Center for Nano Science and Technology, Istituto Italiano di Tecnologia, Via Rubattino 81, 20134 Milano, Italy.
| | - Edgar Gutierrez-Fernandez
- POLYMAT, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain
| | - Carlotta Ronchi
- Center for Nano Science and Technology, Istituto Italiano di Tecnologia, Via Rubattino 81, 20134 Milano, Italy.
| | - Christian Bellacanzone
- Center for Nano Science and Technology, Istituto Italiano di Tecnologia, Via Rubattino 81, 20134 Milano, Italy.
| | - Luca Bondi
- DiFA University of Bologna, Viale Carlo Berti Pichat 6/2 Bologna, 40127, Italy
| | - Miryam Criado-Gonzalez
- POLYMAT, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain
| | - Paola Lagonegro
- Center for Nano Science and Technology, Istituto Italiano di Tecnologia, Via Rubattino 81, 20134 Milano, Italy.
| | - Francesco Moccia
- Department of Biology and Biotechnology "Lazzaro Spallanzani", University of Pavia, 27100 Pavia, Italy
| | - Tobias Cramer
- DiFA University of Bologna, Viale Carlo Berti Pichat 6/2 Bologna, 40127, Italy
| | - David Mecerreyes
- POLYMAT, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
| | - Jaime Martín
- POLYMAT, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain
- Universidade da Coruña, Campus Industrial de Ferrol, CITENI, Campus Esteiro S/N, 15403 Ferrol, Spain
| | - Maria Rosa Antognazza
- Center for Nano Science and Technology, Istituto Italiano di Tecnologia, Via Rubattino 81, 20134 Milano, Italy.
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15
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Pal T, Sahu K. Effect of salt addition on a triblock copolymer-zwitterionic surfactant assembly: insight from excited-state proton transfer. Phys Chem Chem Phys 2023; 25:29816-29830. [PMID: 37886857 DOI: 10.1039/d3cp03388k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Copolymer-surfactant assemblies are frequently utilized across various fields, from medicine to nanotechnology. Understanding the organization of the mixed assemblies in a saline environment will further expand their application horizons, especially under physiological conditions. Excited-state proton transfer (ESPT) can provide insight into the hydration nature and organization of the non-toxic assembly of a triblock copolymer F127 (poly-(ethylene oxide)101 (PEO101)-poly(propylene oxide)56 (PPO56)-PEO101)) and a zwitterionic sulfobetaine surfactant N-dodecyl-N,N-dimethyl-3-ammoniopropane sulfonate (SB12). Here, we present a comprehensive investigation of the compactness and hydration nature of the F127-SB12 mixed assemblies at different salt concentrations using the ESPT of 8-hydroxy pyrene-1,3,6-trisulfonate (HPTS). In the absence of salts, gradual SB12 addition to a premicellar (0.4 mM) or a post-micellar (4 mM) F127 solution leads to an anomalous modulation of the protonated and deprotonated emission bands. The emission intensity ratio (protonated/deprotonated) first increases to a maximum at a particular SB12 concentration (6 mM and 35 mM for the premicellar and post-micellar F127 assemblies, respectively), and then the ratio decreases with a further increase in the surfactant concentration. Since the intensity ratio is an indicator of the retardation of the ESPT process, the mixed micellar configuration displaying a maximum intensity ratio represents the most compact and least hydrated state. Salt addition to this configuration lowers the intensity ratio, signifying an enhanced ESPT process. Dynamic light scattering (DLS) results indicate that the size of the mixed assembly remains almost unaltered with the addition of salts. Thus, salinity enhances the ESPT process inside the F127-SB12 mixed assemblies without significantly altering the hydrodynamic radius.
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Affiliation(s)
- Tapas Pal
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
| | - Kalyanasis Sahu
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
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16
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Siddoway AC, White BM, Narasimhan B, Mallapragada SK. Synthesis and Optimization of Next-Generation Low-Molecular-Weight Pentablock Copolymer Nanoadjuvants. Vaccines (Basel) 2023; 11:1572. [PMID: 37896975 PMCID: PMC10611236 DOI: 10.3390/vaccines11101572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 09/27/2023] [Accepted: 10/05/2023] [Indexed: 10/29/2023] Open
Abstract
Polymeric nanomaterials such as Pluronic®-based pentablock copolymers offer important advantages over traditional vaccine adjuvants and have been increasingly investigated in an effort to develop more efficacious vaccines. Previous work with Pluronic® F127-based pentablock copolymers, functionalized with poly(diethyl aminoethyl methacrylate) (PDEAEM) blocks, demonstrated adjuvant capabilities through the antigen presentation and crosslinking of B cell receptors. In this work, we describe the synthesis and optimization of a new family of low-molecular-weight Pluronic®-based pentablock copolymer nanoadjuvants with high biocompatibility and improved adjuvanticity at low doses. We synthesized low-molecular-weight Pluronic® P123-based pentablock copolymers with PDEAEM blocks and investigated the relationship between polymer concentration, micellar size, and zeta potential, and measured the release kinetics of a model antigen, ovalbumin, from these nanomaterials. The Pluronic® P123-based pentablock copolymer nanoadjuvants showed higher biocompatibility than the first-generation Pluronic® F127-based pentablock copolymer nanoadjuvants. We assessed the adjuvant capabilities of the ovalbumin-containing Pluronic® P123-based pentablock copolymer-based nanovaccines in mice, and showed that animals immunized with these nanovaccines elicited high antibody titers, even when used at significantly reduced doses compared to Pluronic® F127-based pentablock copolymers. Collectively, these studies demonstrate the synthesis, self-assembly, biocompatibility, and adjuvant properties of a new family of low-molecular-weight Pluronic® P123-based pentablock copolymer nanomaterials, with the added benefits of more efficient renal clearance, high biocompatibility, and enhanced adjuvanticity at low polymer concentrations.
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Affiliation(s)
- Alaric C. Siddoway
- Department of Chemical & Biological Engineering, Iowa State University, Ames, IA 50011, USA; (A.C.S.); (B.M.W.); (B.N.)
| | - Brianna M. White
- Department of Chemical & Biological Engineering, Iowa State University, Ames, IA 50011, USA; (A.C.S.); (B.M.W.); (B.N.)
| | - Balaji Narasimhan
- Department of Chemical & Biological Engineering, Iowa State University, Ames, IA 50011, USA; (A.C.S.); (B.M.W.); (B.N.)
- Nanovaccine Institute, Ames, IA 50011, USA
| | - Surya K. Mallapragada
- Department of Chemical & Biological Engineering, Iowa State University, Ames, IA 50011, USA; (A.C.S.); (B.M.W.); (B.N.)
- Nanovaccine Institute, Ames, IA 50011, USA
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17
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Ward CL, Cornejo MA, Peli Thanthri SH, Linz TH. A review of electrophoretic separations in temperature-responsive Pluronic thermal gels. Anal Chim Acta 2023; 1276:341613. [PMID: 37573098 DOI: 10.1016/j.aca.2023.341613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 08/14/2023]
Abstract
Gel electrophoresis is a ubiquitous bioanalytical technique used in research laboratories to validate protein and nucleic acid samples. Polyacrylamide and agarose have been the gold standard gel materials for decades, but an alternative class of polymer has emerged with potentially superior performance. Pluronic thermal gels are water-soluble polymers that possess the unique ability to undergo a change in viscosity in response to changing temperature. Thermal gels can reversibly convert between low-viscosity liquids and high-viscosity solid gels using temperature as an adjustable parameter. The properties of thermal gels provide unmatched flexibility as a dynamic separations matrix to measure analytes ranging from small molecules to cells. This review article describes the physical and chemical properties of Pluronic thermal gels to provide a fundamental overview of polymer behavior. The performance of thermal gels is then reviewed to highlight their applications as a gel matrix for electrokinetic separations in capillary, microfluidic, and slab gel formats. The use of dynamic temperature-responsive gels in bioanalytical separations is an underexplored area of research but one that holds exciting potential to achieve performance unattainable with conventional static polymers.
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Affiliation(s)
- Cassandra L Ward
- Department of Chemistry, Wayne State University, Detroit, MI, USA; Lumigen Instrument Center, Wayne State University, Detroit, MI, USA.
| | - Mario A Cornejo
- Department of Chemistry, Wayne State University, Detroit, MI, USA
| | | | - Thomas H Linz
- Department of Chemistry, Wayne State University, Detroit, MI, USA.
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18
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Rajabi M, Cabral JD, Saunderson S, Gould M, Ali MA. Development and optimisation of hydroxyapatite-polyethylene glycol diacrylate hydrogel inks for 3D printing of bone tissue engineered scaffolds. Biomed Mater 2023; 18:065009. [PMID: 37699400 DOI: 10.1088/1748-605x/acf90a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 09/12/2023] [Indexed: 09/14/2023]
Abstract
In the event of excessive damage to bone tissue, the self-healing process alone is not sufficient to restore bone integrity. Three-dimensional (3D) printing, as an advanced additive manufacturing technology, can create implantable bone scaffolds with accurate geometry and internal architecture, facilitating bone regeneration. This study aims to develop and optimise hydroxyapatite-polyethylene glycol diacrylate (HA-PEGDA) hydrogel inks for extrusion 3D printing of bone tissue scaffolds. Different concentrations of HA were mixed with PEGDA, and further incorporated with pluronic F127 (PF127) as a sacrificial carrier. PF127 provided good distribution of HA nanoparticle within the scaffolds and improved the rheological requirements of HA-PEGDA inks for extrusion 3D printing without significant reduction in the HA content after its removal. Higher printing pressures and printing rates were needed to generate the same strand diameter when using a higher HA content compared to a lower HA content. Scaffolds with excellent shape fidelity up to 75-layers and high resolution (∼200 µm) with uniform strands were fabricated. Increasing the HA content enhanced the compression strength and decreased the swelling degree and degradation rate of 3D printed HA-PEGDA scaffolds. In addition, the incorporation of HA improved the adhesion and proliferation of human bone mesenchymal stem cells (hBMSCs) onto the scaffolds. 3D printed scaffolds with 2 wt% HA promoted osteogenic differentiation of hBMSCs as confirmed by the expression of alkaline phosphatase activity and calcium deposition. Altogether, the developed HA-PEGDA hydrogel ink has promising potential as a scaffold material for bone tissue regeneration, with excellent shape fidelity and the ability to promote osteogenic differentiation of hBMSCs.
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Affiliation(s)
- Mina Rajabi
- Centre for Bioengineering & Nanomedicine, Faculty of Dentistry, Division of Health Sciences, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - Jaydee D Cabral
- Department of Microbiology and Immunology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - Sarah Saunderson
- Department of Microbiology and Immunology, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - Maree Gould
- Centre for Bioengineering & Nanomedicine, Faculty of Dentistry, Division of Health Sciences, University of Otago, PO Box 56, Dunedin 9054, New Zealand
| | - M Azam Ali
- Centre for Bioengineering & Nanomedicine, Faculty of Dentistry, Division of Health Sciences, University of Otago, PO Box 56, Dunedin 9054, New Zealand
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19
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White JM, Crabtree AA, Bates FS, Calabrese MA. Effect of chain architecture on the structure, dynamics, and rheology of thermoresponsive poloxamer hydrogels and associated blends. Macromolecules 2023; 56:6834-6847. [PMID: 38774522 PMCID: PMC11104561 DOI: 10.1021/acs.macromol.3c01107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2024]
Abstract
Poloxamers, ABA triblock polymers composed of a poly(propylene oxide) (PPO) midblock (B) and poly(ethylene oxide) (PEO) endblocks (A), are widely studied for biomedical applications. Aqueous poloxamer 407 (P407; also referred to as F127) undergoes a solution-to-gel transition with increasing temperature, driven by the formation and ordering of micelles onto periodic lattices; however, the gel temperature and resulting modulus has limited tunability. Here, reverse P407 (RP407), a BAB polymer of the same composition and molar mass but the inverted architecture, is synthesized via anionic polymerization. The micellization and gelation temperatures of RP407 are higher than that of P407 and the PPO endblocks allow for intermicelle bridging; however, both single-component solutions favor body-centered cubic (BCC) packings. Further, aqueous RP407 displays a "soft gel" region with interesting rheological behavior, including viscoelastic aging and thermal hysteresis. Combining P407 and RP407 yields solutions with intermediate transition temperatures and alters the size and micelle packing. While the single-component solutions produce BCC packings, the blends form close-packed structures and larger micelles of higher aggregation numbers. Blends of P407 with an analogous AB diblock (E111P32) display similar behavior, whereas RP407/diblock blends form intermediate-sized BCC-packed micelles. These differences in packing and aggregation alter the local environments within the gels, which could have implications for applications such as drug delivery and protein stabilization.
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Affiliation(s)
- Joanna M White
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, MN, 55455
| | - Adelyn A Crabtree
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, MN, 55455
| | - Frank S Bates
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, MN, 55455
| | - Michelle A Calabrese
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, MN, 55455
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20
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Solanki R, Jangid AK, Jadav M, Kulhari H, Patel S. Folate Functionalized and Evodiamine-Loaded Pluronic Nanomicelles for Augmented Cervical Cancer Cell Killing. Macromol Biosci 2023; 23:e2300077. [PMID: 37163974 DOI: 10.1002/mabi.202300077] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/03/2023] [Indexed: 05/12/2023]
Abstract
Evodiamine (Evo) is a natural, biologically active plant alkaloid with wide range of pharmacological activities. In the present study Evo-loaded folate-conjugated Pluronic F108 nano-micelles (ENM) is synthesized to enhance the therapeutic efficacy of Evo against cervical cancer. ENM are synthesized, physicochemically characterized and in vitro anticancer activity is performed. The study demonstrates that ENM have nanoscale size (50.33 ± 3.09 nm), monodispersity of 0.122 ± 0.072, with high drug encapsulation efficiency (71.30 ± 3.76%) and controlled drug release at the tumor microenvironment. ENM showed dose-dependent and time-dependent cytotoxicity against HeLa human cervical cancer cells. The results of in vitro anticancer studies demonstrated that ENM have significant anticancer effects and greatly induce apoptosis as compared to pure Evo. The cellular uptake study suggests that increased anticancer activity of ENM is due to the improved intracellular delivery of Evo through overexpressed folate receptors. Overall, the designed ENM can be a potential targeted delivery system for hydrophobic anticancer bioactive compound like Evo.
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Affiliation(s)
- Raghu Solanki
- School of Life Sciences, Central University of Gujarat, Gandhinagar, 382030, India
| | - Ashok Kumar Jangid
- School of Nano Sciences, Central University of Gujarat, Gandhinagar, 382030, India
- Department of Chemical and Biochemical Engineering, College of Engineering, Dongguk University, 30, Pildong-ro 1-gil, Jung-gu, Seoul, 04620, South Korea
| | - Mahima Jadav
- School of Nano Sciences, Central University of Gujarat, Gandhinagar, 382030, India
| | - Hitesh Kulhari
- School of Nano Sciences, Central University of Gujarat, Gandhinagar, 382030, India
| | - Sunita Patel
- School of Life Sciences, Central University of Gujarat, Gandhinagar, 382030, India
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21
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Shamsheer R, Sunoqrot S, Kasabri V, Shalabi D, Alkhateeb R, Alhiari Y, Ababneh R, Ikhmais B, Abumansour H. Preparation and Characterization of Capsaicin Encapsulated Polymeric Micelles and Studies of Synergism with Nicotinic Acids as Potential Anticancer Nanomedicines. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2023; 15:107-125. [PMID: 37705853 PMCID: PMC10496848 DOI: 10.4103/jpbs.jpbs_311_22] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 02/04/2023] [Accepted: 02/20/2023] [Indexed: 09/15/2023] Open
Abstract
Background/Objective/Methods Capsaicin micelles were prepared by the direct dissolution using the amphiphilic copolymer Pluronic P123 and advanced for substantially novel submicro-nanocytotoxicity. Results Superior cytotoxicity of capsaicin loaded nanomicelles vs. both the raw capsaicin and reference cisplatin in pancreatic PANC1, breast MCF7, colorectal resistant CACO2, skin A375, lung A549 and prostate PC3 cancer cell lines were delineated. Nicotinic acid (NA) derivative 39 (2-Amino IsoNA) had antiinflammatory potential but consistently lacked antiproliferation in MCF7, PANC1 and CACO2. Besides NA derivatives 8 (5-MethylNA) and 44 (6-AminoNA) exhibited lack of antiinflammation but had comparable antitumorigenesis potency to cisplatin in PANC1 cells. Though capsaicin loaded nanomicelles exerted pronounced antiinflammation (with IC50 value of 510 nM vs. Indomethacin's) in lipopolysacchride-induced inflammation of RAW247.6 macrophages; they lacked DPPH scavenging propensities. Free capsaicin proved more efficacious vs. its loaded nanocarriers to chemosensitize cytotoxicity of combinations with NAs 1(6-Hexyloxy Nicotinic Acid), 5(6-OctyloxyNA), 8(5-MethylNA), 12(6-Thien-2yl-NA), 13(5,6-DichloroNA) and 44(6-AminoNA) in CACO2, PANC1 and prostate PC3. Conclusion Capsaicin loaded nanomicelles proved more efficacious vs. free capsaicin to chemo-sensitize antiproliferation of cotreatments with NA derivatives, 1, 5, 8, 12, 13 and 44 (in skin A375), 1, 5, 8 and 12 (in breast MCF7), and 1, 5, 12 and 44 (in lung A549).
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Affiliation(s)
- Rawan Shamsheer
- Department of Clinical Pharmacy and Biopharmaceutics, School of Pharmacy, University of Jordan, Amman, Jordan
| | - Suhair Sunoqrot
- Department of Pharmacy, School of Pharmacy, AL-Zaytoonah University of Jordan, Amman, Jordan
| | - Violet Kasabri
- Department of Clinical Pharmacy and Biopharmaceutics, School of Pharmacy, University of Jordan, Amman, Jordan
| | - Dana Shalabi
- Department of Clinical Pharmacy and Biopharmaceutics, School of Pharmacy, University of Jordan, Amman, Jordan
| | - Rema Alkhateeb
- Department of Clinical Pharmacy and Biopharmaceutics, School of Pharmacy, University of Jordan, Amman, Jordan
| | - Yusuf Alhiari
- Department of Clinical Pharmacy and Biopharmaceutics, School of Pharmacy, University of Jordan, Amman, Jordan
- Department of Pharmacy, School of Pharmacy, AL-Zaytoonah University of Jordan, Amman, Jordan
| | - Riad Ababneh
- Physics Department, Yarmouk University, Irbid, Jordan
| | - Balqis Ikhmais
- Department of Pharmacy, School of Pharmacy, AL-Zaytoonah University of Jordan, Amman, Jordan
| | - Hamza Abumansour
- Department of Pharmacy, School of Pharmacy, AL-Zaytoonah University of Jordan, Amman, Jordan
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22
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Oceguera-Basurto PE, Figueroa-Ochoa EB, Anguiano-Sevilla LA, Sánchez-Ramírez DR, Quintero-Ramos A, Del Toro-Arreola A, López-Roa RI, Taboada P, Topete A, Daneri-Navarro A. Evaluation of a Polymeric Topical Formulation of Endoxifen in an Estrogen Receptor Positive Breast Cancer Murine Model. Int J Pharm 2023:123175. [PMID: 37369286 DOI: 10.1016/j.ijpharm.2023.123175] [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: 03/14/2023] [Revised: 06/20/2023] [Accepted: 06/22/2023] [Indexed: 06/29/2023]
Abstract
Breast cancer (BC) has surpassed lung cancer as the most diagnosed cancer and, in terms of mortality, is the fifth leading cause with 684,996 new deaths (6.7% of all cancer-related deaths) and the highest mortality amongst all cancers (15.5%) in women. Selective estrogen-receptor modulators (SERMs) have been used for the last thirty years for estrogen receptor-positive (ER+) breast cancer prevention and treatment. Tamoxifen (TAM), the most widely used SERM, is orally administered and its long-term oral administration has been associated to toxicity and adverse side effects. Endoxifen (EDX) is one of the known active metabolites of TAM, with an affinity to ERα 100 times higher than TAM. Furthermore, EDX has shown antiproliferative activity against the ER+ breast cancer cell line MCF-7. Alternative administration routes that avoid the metabolic processing of TAM seem an appealing alternative to its oral administration. With this aim, we have prepared a polymeric gel-like solution of Pluronic® F127 as vehicle for topical administration of EDX. In order to shed light on the potential clinical use of this formulation we have compare it with the standard pharmaceutical form, i.e. orally administered TAM. The biodistribution, antitumor efficacy and toxic effects of topical EDX and oral TAM were evaluated in ER+ tumor xenograft athymic nu/nu mouse models. The results showed a statistically significant antitumor effect and reduced toxicity of topical EDX as compared to oral TAM or empty F127 gel. This novel administration route of SERMs could also have a strong impact in the prevention of BC at early development stages and could help to ameliorate the mortality and morbidity related to this disease.
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Affiliation(s)
- Paola E Oceguera-Basurto
- Laboratorio de Inmunología, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara, Guadalajara, 44340, México
| | - Edgar B Figueroa-Ochoa
- Laboratorio de Proyectos Modulares, Departamento de Química, CUCEI, Universidad de Guadalajara, Blvd. M. García Barragán 1421, Guadalajara, 44430, México
| | - Luis A Anguiano-Sevilla
- Departamento de Farmacobiología, CUCEI, Universidad de Guadalajara, Blvd. M. García Barragán 1421, Guadalajara, 44430, México
| | - Dante R Sánchez-Ramírez
- Laboratorio de Inmunología, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara, Guadalajara, 44340, México; Departamento de Química Aplicada, Universidad Tecnológica de Jalisco, Colonia Luis J. Jiménez 577, Guadalajara, 44979, México
| | - Antonio Quintero-Ramos
- Laboratorio de Inmunología, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara, Guadalajara, 44340, México
| | - Alicia Del Toro-Arreola
- Laboratorio de Inmunología, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara, Guadalajara, 44340, México
| | - Rocío I López-Roa
- Laboratorio de Investigación y Desarrollo Farmacéutico, CUCEI, Universidad de Guadalajara, Blvd. M. García Barragán 1421, Guadalajara, 44430 México
| | - Pablo Taboada
- Grupo de Física de Coloides y Polímeros, Departamento de Física de la Materia Condensada Universidad de Santiago de Compostela, Instituto de Investigación Sanitaria de Santiago de Compostela IDIS e Instituto de Materiales (IMATUS), Santiago de Compostela, 15782, Spain
| | - Antonio Topete
- Laboratorio de Inmunología, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara, Guadalajara, 44340, México.
| | - Adrián Daneri-Navarro
- Laboratorio de Inmunología, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara, Guadalajara, 44340, México.
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23
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Carrozza D, Malavasi G, Ferrari E. Very Large Pores Mesoporous Silica as New Candidate for Delivery of Big Therapeutics Molecules, Such as Pharmaceutical Peptides. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16114151. [PMID: 37297286 DOI: 10.3390/ma16114151] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 05/29/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023]
Abstract
The synthesis of a scaffold that can accommodate big molecules with a pharmaceutical role is important to shield them and maintain their biological activity. In this field, silica particles with large pores (LPMS) are innovative supports. Large pores allow for the loading of bioactive molecules inside the structure and contemporarily their stabilization and protection. These purposes cannot be achieved using classical mesoporous silica (MS, pore size 2-5 nm), because their pores are not big enough and pore blocking occurs. LPMSs with different porous structures are synthesized starting from an acidic water solution of tetraethyl orthosilicate reacting with pore agents (Pluronic® F127 and mesitylene), performing hydrothermal and microwave-assisted reactions. Time and surfactant optimization were performed. Loading tests were conducted using Nisin as a reference molecule (polycyclic antibacterial peptide, with dimensions of 4-6 nm); UV-Vis analyses on loading solutions were performed. For LPMSs, a significantly higher loading efficiency (LE%) was registered. Other analyses (Elemental Analysis, Thermogravimetric Analysis and UV-Vis) confirmed the presence of Nisin in all the structures and its stability when loaded on them. LPMSs showed a lower decrease in specific surface area if compared to MS; in terms of the difference in LE% between samples, it is explained considering the filling of pores for LPMSs, a phenomenon that is not allowed for MSs. Release studies in simulated body fluid highlight, only for LPMSs, a controlled release, considering the longer time scale of release. Scanning Electron Microscopy images acquired before and after release tests shows the LPMSs' maintenance of the structure, demonstrating strength and mechanical resistance of structures. In conclusion, LPMSs were synthesized, performing time and surfactant optimization. LPMSs showed better loading and releasing properties with respect to classical MS. All collected data confirm a pore blocking for MS and an in-pore loading for LPMS.
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Affiliation(s)
- Debora Carrozza
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy
| | - Gianluca Malavasi
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy
| | - Erika Ferrari
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy
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Lazarević D, Mušović J, Trtić-Petrović T, Gadžurić S. Partition of parthenolide in ternary {block copolymer + biocompatible ionic liquid or natural deep eutectic solvent + water} systems. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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25
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de Freitas CF, de Araújo Santos J, Pellosi DS, Caetano W, Batistela VR, Muniz EC. Recent advances of Pluronic-based copolymers functionalization in biomedical applications. BIOMATERIALS ADVANCES 2023; 151:213484. [PMID: 37276691 DOI: 10.1016/j.bioadv.2023.213484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 05/22/2023] [Accepted: 05/25/2023] [Indexed: 06/07/2023]
Abstract
The design of polymeric biocompatible nanomaterials for biological and medical applications has received special attention in recent years. Among different polymers, the triblock type copolymers (EO)x(PO)y(EO)x or Pluronics® stand out due its favorable characteristics such as biocompatibility, low tissue adhesion, thermosensitivity, and structural capacity to produce different types of macro and nanostructures, e.g. micelles, vesicles, nanocapsules, nanospheres, and hydrogels. However, Pluronic itself is not the "magic bullet" and its functionalization via chemical synthesis following biologically oriented design rules is usually required aiming to improve its properties. Therefore, this paper presents some of the main publications on new methodologies for synthetic modifications and applications of Pluronic-based nanoconstructs in the biomedical field in the last 15 years. In general, the polymer modifications aim to improve physical-chemical properties related to the micellization process or physical entrapment of drug cargo, responsive stimuli, active targeting, thermosensitivity, gelling ability, and hydrogel formation. Among these applications, it can be highlighted the treatment of malignant neoplasms, infectious diseases, wound healing, cellular regeneration, and tissue engineering. Functionalized Pluronic has also been used for various purposes, including medical diagnosis, medical imaging, and even miniaturization, such as the creation of lab-on-a-chip devices. In this context, this review discusses the main scientific contributions to the designing, optimization, and improvement of covalently functionalized Pluronics aiming at new strategies focused on the multiple areas of the biomedical field.
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Affiliation(s)
- Camila Fabiano de Freitas
- Department of Chemistry, Federal University of Santa Catarina - UFSC, Eng. Agronômico Andrei Cristian Ferreira, s/n, Trindade, 88040-900 Florianópolis, Santa Catarina, Brazil.
| | - Jailson de Araújo Santos
- PhD Program in Materials Science and Engineering, Federal University of Piauí, Campus Petrônio Portela, Ininga, Teresina CEP 64049-550, Piauí, Brazil
| | - Diogo Silva Pellosi
- Laboratory of Hybrid Materials, Department of Chemistry, Federal University of São Paulo, Diadema, Brazil
| | - Wilker Caetano
- Department of Chemistry, State University of Maringá, 5790 Colombo Avenue, 87020-900 Maringá, Paraná, Brazil
| | - Vagner Roberto Batistela
- Department of Pharmacology and Therapeutics, State University of Maringá, 5790 Colombo Avenue, 87020-900 Maringá, Paraná, Brazil
| | - Edvani Curti Muniz
- Department of Chemistry, State University of Maringá, 5790 Colombo Avenue, 87020-900 Maringá, Paraná, Brazil; Department of Chemistry, Federal University of Piauí, Campus Petronio Portella, Ininga, Teresina CEP 64049-550, Piauí, Brazil.
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26
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Gutiérrez-Saucedo RA, Gómez-López JC, Villanueva-Briseño AA, Topete A, Soltero-Martínez JFA, Mendizábal E, Jasso-Gastinel CF, Taboada P, Figueroa-Ochoa EB. Pluronic F127 and P104 Polymeric Micelles as Efficient Nanocarriers for Loading and Release of Single and Dual Antineoplastic Drugs. Polymers (Basel) 2023; 15:polym15102249. [PMID: 37242824 DOI: 10.3390/polym15102249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 05/03/2023] [Accepted: 05/05/2023] [Indexed: 05/28/2023] Open
Abstract
The potential application of biodegradable and biocompatible polymeric micelles formed by Pluronic F127 and P104 as nanocarriers of the antineoplastic drugs docetaxel (DOCE) and doxorubicin (DOXO) is presented in this work. The release profile was carried out under sink conditions at 37 °C and analyzed using the Higuchi, Korsmeyer-Peppas, and Peppas-Sahlin diffusion models. The cell viability of HeLa cells was evaluated using the proliferation cell counting kit CCK-8 assay. The formed polymeric micelles solubilized significant amounts of DOCE and DOXO, and released them in a sustained manner for 48 h, with a release profile composed of an initial rapid release within the first 12 h followed by a much slower phase the end of the experiments. In addition, the release was faster under acidic conditions. The model that best fit the experimental data was the Korsmeyer-Peppas one and denoted a drug release dominated by Fickian diffusion. When HeLa cells were exposed for 48 h to DOXO and DOCE drugs loaded inside P104 and F127 micelles, they showed lower IC50 values than those reported by other researchers using polymeric nanoparticles, dendrimers or liposomes as alternative carriers, indicating that a lower drug concentration is needed to decrease cell viability by 50%.
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Affiliation(s)
- Ramón A Gutiérrez-Saucedo
- Laboratorio de Proyectos Modulares, Departamento de Química, Centro Universitario de Ciencias Exactas e Ingeniería, Universidad de Guadalajara, Blvd. M. García Barragán 1421, Guadalajara 44430, Jalisco, Mexico
| | - Julio C Gómez-López
- Laboratorio de Proyectos Modulares, Departamento de Química, Centro Universitario de Ciencias Exactas e Ingeniería, Universidad de Guadalajara, Blvd. M. García Barragán 1421, Guadalajara 44430, Jalisco, Mexico
| | - Adrián A Villanueva-Briseño
- Laboratorio de Inmunología, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada 950, Guadalajara 44340, Jalisco, Mexico
| | - Antonio Topete
- Laboratorio de Inmunología, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada 950, Guadalajara 44340, Jalisco, Mexico
| | - J F Armando Soltero-Martínez
- Departamento de Ingeniería Química, Centro Universitario de Ciencias Exactas e Ingeniería, Universidad de Guadalajara, Blvd. M. García Barragán 1421, Guadalajara 44430, Jalisco, Mexico
| | - Eduardo Mendizábal
- Departamento de Ingeniería Química, Centro Universitario de Ciencias Exactas e Ingeniería, Universidad de Guadalajara, Blvd. M. García Barragán 1421, Guadalajara 44430, Jalisco, Mexico
| | - Carlos F Jasso-Gastinel
- Departamento de Ingeniería Química, Centro Universitario de Ciencias Exactas e Ingeniería, Universidad de Guadalajara, Blvd. M. García Barragán 1421, Guadalajara 44430, Jalisco, Mexico
| | - Pablo Taboada
- Grupo de Física de Coloides y Polímeros, Departamento de Física de Partículas e Instituto de Materiales (IMATUS), Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Edgar B Figueroa-Ochoa
- Laboratorio de Proyectos Modulares, Departamento de Química, Centro Universitario de Ciencias Exactas e Ingeniería, Universidad de Guadalajara, Blvd. M. García Barragán 1421, Guadalajara 44430, Jalisco, Mexico
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27
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Zhao M, Uzunoff A, Green M, Rakovich A. The Role of Stabilizing Copolymer in Determining the Physicochemical Properties of Conjugated Polymer Nanoparticles and Their Nanomedical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13091543. [PMID: 37177088 PMCID: PMC10180373 DOI: 10.3390/nano13091543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 04/30/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023]
Abstract
Conjugated polymer nanoparticles (CPNs) are a promising class of nanomaterials for biomedical applications, such as bioimaging, gene and drug delivery/release, photodynamic therapy (PDT), photothermal therapy (PTT), and environmental sensing. Over the past decade, many reports have been published detailing their synthesis and their various potential applications, including some very comprehensive reviews of these topics. In contrast, there is a distinct lack of overview of the role the stabilizing copolymer shells have on the properties of CPNs. This review attempts to correct this oversight by scrutinizing reports detailing the synthesis and application of CPNs stabilized with some commonly-used copolymers, namely F127 (Pluronic poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) diacrylate), PSMA (poly(styrene-co-maleic anhydride)), PLGA (poly(D, L-lactide-co-glycolide)) and PEG (polyethylene glycol) derivatives. The analysis of the reported physicochemical properties and biological applications of these CPNs provides insights into the advantages of each group of copolymers for specific applications and offers a set of guidance criteria for the selection of an appropriate copolymer when designing CPNs-based probes. Finally, the challenges and outlooks in the field are highlighted.
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Affiliation(s)
- Miao Zhao
- Physics Department, King's College London, London WC2R 2LS, UK
| | - Anton Uzunoff
- Physics Department, King's College London, London WC2R 2LS, UK
| | - Mark Green
- Physics Department, King's College London, London WC2R 2LS, UK
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28
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White JM, Garza A, Griebler JJ, Bates FS, Calabrese MA. Engineering the Structure and Rheological Properties of P407 Hydrogels via Reverse Poloxamer Addition. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:5084-5094. [PMID: 36971824 PMCID: PMC10593112 DOI: 10.1021/acs.langmuir.3c00088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Aqueous solutions of poloxamer 407 (P407), a commercially available and nontoxic ABA triblock polymer (PEO-PPO-PEO), undergo a solution-to-gel transition with increasing temperature and are promising candidates for injectable therapeutics. The gel transition temperature, modulus, and structure are all dictated by polymer concentration, preventing independent tuning of these properties. Here, we show that addition of BAB reverse poloxamers (RPs) to P407-based solutions dramatically alters the gelation temperature, modulus, and morphology. Gelation temperature and RP localization within the hydrogel are dictated by RP solubility. Highly soluble RPs increase gelation temperature and incorporate primarily into the micelle corona regions. Alternatively, RPs with low aqueous solubility decrease gelation temperature and associate within the micelle core and core-corona interface. These differences in RP localization have significant implications for the hydrogel modulus and microstructure. The ability to tune gelation temperature, modulus, and structure through RP addition allows for the design of thermoresponsive materials with specific properties that are unobtainable with neat P407-based hydrogels.
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Affiliation(s)
- Joanna M White
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave SE, Minneapolis, Minnesota 55455, United States
| | - Ally Garza
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley 1201 W University Drive, Edinburg, Texas 78539, United States
| | - James J Griebler
- Department of Chemical and Biomolecular Engineering, University of Illinois Urbana-Champaign, 600 S Mathews Ave, Urbana, Illinois 61801, United States
| | - Frank S Bates
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave SE, Minneapolis, Minnesota 55455, United States
| | - Michelle A Calabrese
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave SE, Minneapolis, Minnesota 55455, United States
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29
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Stancheva R, Paunova-Krasteva T, Topouzova-Hristova T, Stoitsova S, Petrov P, Haladjova E. Ciprofloxacin-Loaded Mixed Polymeric Micelles as Antibiofilm Agents. Pharmaceutics 2023; 15:pharmaceutics15041147. [PMID: 37111633 PMCID: PMC10145464 DOI: 10.3390/pharmaceutics15041147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 03/29/2023] [Accepted: 04/03/2023] [Indexed: 04/29/2023] Open
Abstract
In this work, mixed polymeric micelles (MPMs) based on a cationic poly(2-(dimethylamino)ethyl methacrylate)-b-poly(ε-caprolactone)-b-poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA29-b-PCL70-b-PDMAEMA29) and a non-ionic poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) (PEO99-b-PPO67-b-PEO99) triblock copolymers, blended at different molar ratios, were developed. The key physicochemical parameters of MPMs, including size, size distribution, and critical micellar concentration (CMC), were evaluated. The resulting MPMs are nanoscopic with a hydrodynamic diameter of around 35 nm, and the ζ-potential and CMC values strongly depend on the MPM's composition. Ciprofloxacin (CF) was solubilized by the micelles via hydrophobic interaction with the micellar core and electrostatic interaction between the polycationic blocks, and the drug localized it, to some extent, in the micellar corona. The effect of a polymer-to-drug mass ratio on the drug-loading content (DLC) and encapsulation efficiency (EE) of MPMs was assessed. MPMs prepared at a polymer-to-drug mass ratio of 10:1 exhibited very high EE and a prolonged release profile. All micellar systems demonstrated their capability to detach pre-formed Gram-positive and Gram-negative bacterial biofilms and significantly reduced their biomass. The metabolic activity of the biofilm was strongly suppressed by the CF-loaded MPMs indicating the successful drug delivery and release. The cytotoxicity of empty and CF-loaded MPMs was evaluated. The test reveals composition-dependent cell viability without cell destruction or morphological signs of cell death.
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Affiliation(s)
- Rumena Stancheva
- Institute of Polymers, Bulgarian Academy of Sciences, Akad. G. Bonchev St. bl. 103-A, 1113 Sofia, Bulgaria
| | - Tsvetelina Paunova-Krasteva
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Akad. G. Bonchev St. bl. 26, 1113 Sofia, Bulgaria
| | - Tanya Topouzova-Hristova
- Faculty of Biology, Sofia University "St. K. Ohridski", 8 D. Tsankov Blvd., 1164 Sofia, Bulgaria
| | - Stoyanka Stoitsova
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Akad. G. Bonchev St. bl. 26, 1113 Sofia, Bulgaria
| | - Petar Petrov
- Institute of Polymers, Bulgarian Academy of Sciences, Akad. G. Bonchev St. bl. 103-A, 1113 Sofia, Bulgaria
| | - Emi Haladjova
- Institute of Polymers, Bulgarian Academy of Sciences, Akad. G. Bonchev St. bl. 103-A, 1113 Sofia, Bulgaria
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30
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Zaręba J, Jenczyk J, Dobies M, Makrocka-Rydzyk M, Woźniak-Braszak A, Jarek M, Jancelewicz M, Banaszak M. Block copolymer interfaces investigated by means of NMR, atomic force microscopy and dielectric spectroscopy. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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31
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Gradinaru LM, Bercea M, Lupu A, Gradinaru VR. Development of Polyurethane/Peptide-Based Carriers with Self-Healing Properties. Polymers (Basel) 2023; 15:polym15071697. [PMID: 37050311 PMCID: PMC10096672 DOI: 10.3390/polym15071697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/24/2023] [Accepted: 03/27/2023] [Indexed: 03/30/2023] Open
Abstract
In situ-forming gels with self-assembling and self-healing properties are materials of high interest for various biomedical applications, especially for drug delivery systems and tissue regeneration. The main goal of this research was the development of an innovative gel carrier based on dynamic inter- and intramolecular interactions between amphiphilic polyurethane and peptide structures. The polyurethane architecture was adapted to achieve the desired amphiphilicity for self-assembly into an aqueous solution and to facilitate an array of connections with peptides through physical interactions, such as hydrophobic interactions, dipole-dipole, electrostatic, π–π stacking, or hydrogen bonds. The mechanism of the gelation process and the macromolecular conformation in water were evaluated with DLS, ATR-FTIR, and rheological measurements at room and body temperatures. The DLS measurements revealed a bimodal distribution of small (~30–40 nm) and large (~300–400 nm) hydrodynamic diameters of micelles/aggregates at 25 °C for all samples. The increase in the peptide content led to a monomodal distribution of the peaks at 37 °C (~25 nm for the sample with the highest content of peptide). The sol–gel transition occurs very quickly for all samples (within 20–30 s), but the equilibrium state of the gel structure is reached after 1 h in absence of peptide and required more time as the content of peptide increases. Moreover, this system presented self-healing properties, as was revealed by rheological measurements. In the presence of peptide, the structure recovery after each cycle of deformation is a time-dependent process, the recovery is complete after about 300 s. Thus, the addition of the peptide enhanced the polymer chain entanglement through intermolecular interactions, leading to the preparation of a well-defined gel carrier. Undoubtedly, this type of polyurethane/peptide-based carrier, displaying a sol–gel transition at a biologically relevant temperature and enhanced viscoelastic properties, is of great interest in the development of medical devices for minimally invasive procedures or precision medicine.
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Patel HS, Kunjadiya A, Rahdar A, Sharma RK. Pluronic-phosphatidylcholine mixed polymeric nanomicellar formulation for curcumin drug bioavailability: Design, fabrication, characterization and in vitro bioinvestigations. J BIOACT COMPAT POL 2023. [DOI: 10.1177/08839115231157098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2023]
Abstract
Curcumin (CUR), obtained from turmeric, has biological advantages, but low aqueous solubility restricts its pharmaceutical applications. In the present work, a mixed polymeric nanomicellar formulation composed of bioactive Pluronic P123, Pluronic F68, and biocompatible phosphatidylcholine (PC) was designed and examined as the nanovehicles for overcoming the major barriers of poor bioavailability related to CUR. The CUR-incorporated P123/F68/PC mixed nanomicellar formulation (CUR-PFPC) was fabricated by the thin film technique and investigated in vitro. The fabrication of CUR-PFPC was optimized through D-optimal design. CUR-PFPC morphology, size distribution, zeta potential, drug encapsulating and incorporation efficiency, compatibility, and crystallinity were characterized using DLS, TEM, FTIR, XRD, and DSC analysis. Moreover, the cumulative drug release, antioxidant assays, and antimicrobial properties of formulations were also examined. The CUR-PFPC formulation exhibited a micellar size of 67.43 nm, a zeta potential of −15.1 mV, a PDI of 0.528, and a spherical shape. The mixed micellar formulation showed excellent compatibility and stability. The in vitro release profile of the CUR-PFPC reached over 60% in comparison to the 95% release of CUR, indicating a slow and sustained release. The DPPH assay showed that the CUR-PFPC had 96% antioxidant activity. Results show that the CUR-PFPC has powerful antibacterial and antifungal properties, which separates it from the free CUR. These findings suggest that the fabricated CUR-PFPC mixed polymeric nanomicellar formulation is thermodynamically and kinetically stable and may be considered a novel nanovehicle for hydrophobic antimicrobial drugs like CUR. Graphical Abstract [Formula: see text]
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Affiliation(s)
- Hemil S Patel
- Applied Chemistry Department, Faculty of Technology and Engineering, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat, India
| | - Anju Kunjadiya
- Indukaka Ipcowala Center for Interdisciplinary Studies in Science and Technology, Sardar Patel University, Anand, Gujarat, India
| | - Abbas Rahdar
- Department of Physics, University of Zabol, Zabol, Sistan and Baluchestan, Iran
| | - Rakesh K Sharma
- Applied Chemistry Department, Faculty of Technology and Engineering, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat, India
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Tang M, Zhong Z, Ke C. Advanced supramolecular design for direct ink writing of soft materials. Chem Soc Rev 2023; 52:1614-1649. [PMID: 36779285 DOI: 10.1039/d2cs01011a] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
The exciting advancements in 3D-printing of soft materials are changing the landscape of materials development and fabrication. Among various 3D-printers that are designed for soft materials fabrication, the direct ink writing (DIW) system is particularly attractive for chemists and materials scientists due to the mild fabrication conditions, compatibility with a wide range of organic and inorganic materials, and the ease of multi-materials 3D-printing. Inks for DIW need to possess suitable viscoelastic properties to allow for smooth extrusion and be self-supportive after printing, but molecularly facilitating 3D printability to functional materials remains nontrivial. While supramolecular binding motifs have been increasingly used for 3D-printing, these inks are largely optimized empirically for DIW. Hence, this review aims to establish a clear connection between the molecular understanding of the supramolecularly bound motifs and their viscoelastic properties at bulk. Herein, extrudable (but not self-supportive) and 3D-printable (self-supportive) polymeric materials that utilize noncovalent interactions, including hydrogen bonding, host-guest inclusion, metal-ligand coordination, micro-crystallization, and van der Waals interaction, have been discussed in detail. In particular, the rheological distinctions between extrudable and 3D-printable inks have been discussed from a supramolecular design perspective. Examples shown in this review also highlight the exciting macroscale functions amplified from the molecular design. Challenges associated with the hierarchical control and characterization of supramolecularly designed DIW inks are also outlined. The perspective of utilizing supramolecular binding motifs in soft materials DIW printing has been discussed. This review serves to connect researchers across disciplines to develop innovative solutions that connect top-down 3D-printing and bottom-up supramolecular design to accelerate the development of 3D-print soft materials for a sustainable future.
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Affiliation(s)
- Miao Tang
- Department of Chemistry, Dartmouth College, 41 College Street, Hanover, 03755 NH, USA.
| | - Zhuoran Zhong
- Department of Chemistry, Dartmouth College, 41 College Street, Hanover, 03755 NH, USA.
| | - Chenfeng Ke
- Department of Chemistry, Dartmouth College, 41 College Street, Hanover, 03755 NH, USA.
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Pluronics-Based Drug Delivery Systems for Flavonoids Anticancer Treatment. Gels 2023; 9:gels9020143. [PMID: 36826313 PMCID: PMC9957264 DOI: 10.3390/gels9020143] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
This research concerns the investigation of the preparation of polymeric nanocarriers containing a flavonoid-naringenin, xanthohumol or isoxanthohumol-based on Pluronics by the thin-film formation method. The size of the formed micelles and their stability upon dilution were evaluated using Dynamic light scattering (DLS) analysis; the high values of the drug loading and the encapsulation efficiency confirmed that the proposed systems of flavonoids delivery consisting of Pluronic P123 and F127 nanomicelles could effectively distribute the drug into tumour tissues, which makes these nanocarriers ideal candidates for passive targeting of cancer cells by the enhanced permeation and retention (EPR) effect. The in vitro cytotoxicity of proposed flavonoids in the Pluronic formulations was investigated by the SRB assay with human colon cancer cells. We designed mixed polymeric micelles, which was a successful drug delivery system for the case of naringenin not being able to enhance the bioavailability and cytotoxic activity of xanthohumol and isoxanthohumol. Furthermore, it was observed that the higher amount of polymer in the formulation achieved better cytotoxic activity.
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Lim I, Yu Lin E, Garcia J, Jia S, Sommerhalter RE, Ghosh SK, Gladysz JA, Sletten EM. Shortwave Infrared Fluorofluorophores for Multicolor In Vivo Imaging. Angew Chem Int Ed Engl 2023; 62:e202215200. [PMID: 36470851 PMCID: PMC9892283 DOI: 10.1002/anie.202215200] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 11/30/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022]
Abstract
Developing chemical tools to detect and influence biological processes is a cornerstone of chemical biology. Here we combine two tools which rely on orthogonality- perfluorocarbons and multiplexed shortwave infrared (SWIR) fluorescence imaging- to visualize nanoemulsions in real time in living mice. Drawing inspiration from fluorous and SWIR fluorophore development, we prepared two SWIR-emissive, fluorous-soluble chromenylium polymethine dyes. These are the most red-shifted fluorous fluorophores- "fluorofluorophores"-to date. After characterizing the dyes, their utility was demonstrated by tracking perfluorocarbon nanoemulsion biodistribution in vivo. Using an excitation-multiplexed approach to image two variables simultaneously, we gained insight into the importance of size and surfactant identity on biodistribution.
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Affiliation(s)
- Irene Lim
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095, USA
| | - Eric Yu Lin
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095, USA
| | - Joseph Garcia
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095, USA
| | - Shang Jia
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095, USA
| | - Robert E Sommerhalter
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, TX 77842, USA
| | - Subrata K Ghosh
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, TX 77842, USA
| | - John A Gladysz
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, TX 77842, USA
| | - Ellen M Sletten
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Dr. East, Los Angeles, CA 90095, USA
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Shah SA, Sohail M, Karperien M, Johnbosco C, Mahmood A, Kousar M. Chitosan and carboxymethyl cellulose-based 3D multifunctional bioactive hydrogels loaded with nano-curcumin for synergistic diabetic wound repair. Int J Biol Macromol 2023; 227:1203-1220. [PMID: 36473525 DOI: 10.1016/j.ijbiomac.2022.11.307] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/19/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022]
Abstract
Biopolymer-based thermoresponsive injectable hydrogels with multifunctional tunable characteristics containing anti-oxidative, biocompatibility, anti-infection, tissue regeneration, and/or anti-bacterial are of abundant interest to proficiently stimulate diabetic wound regeneration and are considered as a potential candidate for diversified biomedical application but the development of such hydrogels remains a challenge. In this study, the Chitosan-CMC-g-PF127 injectable hydrogels are developed using solvent casting. The Curcumin (Cur) Chitosan-CMC-g-PF127 injectable hydrogels possess viscoelastic behavior, good swelling properties, and a controlled release profile. The degree of substitution (% DS), thermal stability, morphological behavior, and crystalline characteristics of the developed injectable hydrogels is confirmed using nuclear magnetic resonance (1H NMR), thermogravimetric analysis, scanning electron microscopy (SEM), and x-ray diffraction analysis (XRD), respectively. The controlled release of cur-micelles from the hydrogel is evaluated by drug release studies and pharmacokinetic profile (PK) using high-performance liquid chromatography (HPLC). Furthermore, compared to cur micelles the Cur-laden injectable hydrogel shows a significant increase in half-life (t1/2) up to 5.92 ± 0.7 h, mean residence time (MRT) was 15.75 ± 0.76 h, and area under the first moment curve (AUMC) is 3195.62 ± 547.99 μg/mL*(h)2 which reveals the controlled release behavior. Cytocompatibility analysis of Chitosan-CMC-g-PF127 hydrogels using 3T3-L1 fibroblasts cells and in vivo toxicity by subcutaneous injection followed by histological examination confirmed good biocompatibility of Cur-micelles loaded hydrogels. The histological results revealed the promising tissue regenerative ability and shows enhancement of fibroblasts, keratinocytes, and collagen deposition, which stimulates the epidermal junction. Interestingly, the Chitosan-CMC-g-PF127 injectable hydrogels ladened Cur exhibited a swift wound repair potential by up-surging the cell migration and proliferation at the site of injury and providing a sustained drug delivery platform for hydrophobic moieties.
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Affiliation(s)
- Syed Ahmed Shah
- Department of Pharmacy, COMSATS University, Islamabad, Abbottabad Campus, 22010, Pakistan; Faculty of Pharmacy, Superior University, Lahore, Pakistan; Developmental Bioengineering, MIRA Institute for Biomedical Technology & Technical Medicine, University of Twente, Enschede, Netherlands
| | - Muhammad Sohail
- Department of Pharmacy, COMSATS University, Islamabad, Abbottabad Campus, 22010, Pakistan; Faculty of Pharmacy, Cyprus International University, Nicosia 99258, Cyprus.
| | - Marcel Karperien
- Developmental Bioengineering, MIRA Institute for Biomedical Technology & Technical Medicine, University of Twente, Enschede, Netherlands
| | - Castro Johnbosco
- Developmental Bioengineering, MIRA Institute for Biomedical Technology & Technical Medicine, University of Twente, Enschede, Netherlands
| | - Arshad Mahmood
- Collage of Pharmacy, Al Ain University, Abu Dhabi, United Arab Emirates; AAU Health and Biomedical Research Center, Al Ain University, Abu Dhabi, United Arab Emirates
| | - Mubeen Kousar
- Department of Pharmacy, COMSATS University, Islamabad, Abbottabad Campus, 22010, Pakistan
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Yahia S, Khalil IA, El-Sherbiny IM. Fortified gelatin-based hydrogel scaffold with simvastatin-mixed nanomicelles and platelet rich plasma as a promising bioimplant for tissue regeneration. Int J Biol Macromol 2023; 225:730-744. [PMID: 36400213 DOI: 10.1016/j.ijbiomac.2022.11.136] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/13/2022] [Accepted: 11/14/2022] [Indexed: 11/17/2022]
Abstract
Treatment of intervertebral disc (IVD) degeneration includes conservative and surgical strategies that have a high risk of recurrence. Consequently, tissue engineering represents a promising alternative treatment. This study aimed at healing damaged IVD with a bioimplant that can maintain the function of defected IVD. The developed IVD scaffold is composed of a fortified biocompatible gelatin-based hydrogel to mimic the ECM mechanical properties of IVD and to allow a sustained release of loaded bioactive agents. The hydrogel is laden with platelet-rich plasma (PRP) and simvastatin (SIM)-loaded mixed pluronics nanomicelles because of their regenerative ability and anti-inflammatory effect, respectively. The gelatin-based hydrogel attained swelling of 508.9 ± 7.9 % to 543.1 ± 5.9 % after 24 h. Increasing crosslinking degree of the hydrogel improved its mechanical elasticity up to 0.3 ± 0.1 N/mm2, and retarded its degradation. The optimum mixed nanomicelles had particle size of 84 ± 0.5 nm, a surface charge of -10 ± 7.1 mv, EE% of 84.9 %, and released 88.4 % of SIM after 21 days. Cytotoxicity of IVD components was evaluated using human skin fibroblast for 3 days. WST-test results proved biocompatibility of IVD scaffold. Subcutaneous implantation of the IVD scaffold was performed for 28 days to test in-vivo biocompatibility. Histological and histochemical micrographs depicted normal healing signs such as macrophages, T-cells, angiogenesis and granulation reactions. Introducing PRP in IVD improved healing process and decreased inflammation reactions. The developed multicomponent implant could be used as potential IVD scaffold with desirable mechanical properties, biocompatibility and healing process.
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Affiliation(s)
- Sarah Yahia
- Nanomedicine Research Labs, Center for Materials Sciences, Zewail City of Science and Technology, 6th of October City, 12578, Giza, Egypt
| | - Islam A Khalil
- Department of Pharmaceutics, College of Pharmacy and Drug Manufacturing, Misr University of Science and Technology (MUST), 6th of October, Giza 12582, Egypt
| | - Ibrahim M El-Sherbiny
- Nanomedicine Research Labs, Center for Materials Sciences, Zewail City of Science and Technology, 6th of October City, 12578, Giza, Egypt.
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Huysecom AS, Thielemans W, Moldenaers P, Cardinaels R. A Generalized Mechano-statistical Transient Network Model for Unravelling the Network Topology and Elasticity of Hydrophobically Associating Multiblock Copolymers in Aqueous Solutions. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c01500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- An-Sofie Huysecom
- Soft Matter, Rheology and Technology, Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200J, 3001Leuven, Belgium
| | - Wim Thielemans
- Sustainable Materials Lab, Department of Chemical Engineering, KU Leuven, campus Kulak Kortrijk, Etienne Sabbelaan 53, 8500Kortrijk, Belgium
| | - Paula Moldenaers
- Soft Matter, Rheology and Technology, Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200J, 3001Leuven, Belgium
| | - Ruth Cardinaels
- Soft Matter, Rheology and Technology, Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200J, 3001Leuven, Belgium
- Processing and Performance of Materials, Department of Mechanical Engineering, TU Eindhoven, Box 513, 5600 MB Eindhoven, The Netherlands
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de Castro KC, Coco JC, Dos Santos ÉM, Ataide JA, Martinez RM, do Nascimento MHM, Prata J, da Fonte PRML, Severino P, Mazzola PG, Baby AR, Souto EB, de Araujo DR, Lopes AM. Pluronic® triblock copolymer-based nanoformulations for cancer therapy: A 10-year overview. J Control Release 2023; 353:802-822. [PMID: 36521691 DOI: 10.1016/j.jconrel.2022.12.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 12/07/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022]
Abstract
This paper provides a review of the literature on the use of Pluronic® triblock copolymers for drug encapsulation over the last 10 years. A special focus is given to the progress of drug delivery systems (e.g., micelles, liposomes, micro/nanoemulsions, hydrogels and nanogels, and polymersomes and niosomes); the beneficial aspects of Pluronic® triblock copolymers as biological response modifiers and as pharmaceutical additives, adjuvants, and stabilizers, are also discussed. The advantages and limitations encountered in developing site-specific targeting approaches based on Pluronic-based nanostructures in cancer treatment are highlighted, in addition to innovative examples for improving tumor cytotoxicity while reducing side effects.
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Affiliation(s)
| | - Julia Cedran Coco
- Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, Brazil
| | | | - Janaína Artem Ataide
- Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, Brazil
| | | | | | - João Prata
- Institute for Bioengineering and Biosciences (iBB), Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal; Associate Laboratory i4HB-Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Pedro Ricardo Martins Lopes da Fonte
- Institute for Bioengineering and Biosciences (iBB), Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal; Associate Laboratory i4HB-Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; Center for Marine Sciences (CCMAR), University of Algarve, Gambelas Campus, Portugal; Department of Chemistry and Pharmacy, Faculty of Sciences and Technology, University of Algarve, Gambelas Campus, 8005-139 Faro, Portugal
| | - Patrícia Severino
- Nanomedicine and Nanotechnology Laboratory (LNMed), Institute of Technology and Research (ITP) and Tiradentes University, Aracaju, Brazil
| | - Priscila Gava Mazzola
- Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, Brazil
| | - André Rolim Baby
- Faculty of Pharmaceutical Sciences, University of São Paulo (USP), São Paulo, Brazil
| | - Eliana Barbosa Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; REQUIMTE/UCIBIO, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | | | - André Moreni Lopes
- Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, Brazil.
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Thermoresponsive phase behavior and nanoscale self-assembly generation in normal and reverse Pluronics®. Colloid Polym Sci 2022. [DOI: 10.1007/s00396-022-05039-0] [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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Oh H, Lee JS, Sung D, Yang S, Choi WI. Size-Controllable Prussian Blue Nanoparticles Using Pluronic Series for Improved Antioxidant Activity and Anti-Inflammatory Efficacy. Antioxidants (Basel) 2022; 11:antiox11122392. [PMID: 36552600 PMCID: PMC9774457 DOI: 10.3390/antiox11122392] [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: 10/25/2022] [Revised: 11/21/2022] [Accepted: 11/29/2022] [Indexed: 12/04/2022] Open
Abstract
Prussian blue (PB) is a metal cluster nanoparticle (NP) of cyanide-bridged iron(II)-iron(III) and exhibits a characteristic blue color. Its peroxidase-, catalase-, and superoxide-dismutase-like activities effectively remove excess reactive oxygen species that induce inflammation and tumorigenesis. However, the dispersion of PB NPs is not sufficiently stable for their application in the biomedical field. In this study, we developed Pluronic-stabilized Prussian blue nanoparticles (PB/Plu NPs) using a series of Pluronic triblock copolymers as a template material for PB NPs. Considering the hydrophilic-lipophilic balance (HLB) values of the Pluronic series, including F68, F127, L35, P123, and L81, the diameters of the PB/Plu NPs decreased from 294 to 112 nm with decreasing HLB values. The smallest PB NP stabilized with Pluronic P123 (PB/PP123 NP) showed the strongest antioxidant and anti-inflammatory activities and wound-healing efficacy because of its large surface area. These results indicated that the spatial distribution of PB NPs in the micelles of Pluronic greatly improved the stability and reactive oxygen species scavenging activity of these NPs. Therefore, PB/Plu NPs using U.S.-FDA-approved Pluronic polymers show potential as biocompatible materials for various biomedical applications, including the treatment of inflammatory diseases in the clinic.
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Affiliation(s)
- Hyeryeon Oh
- Center for Bio-Healthcare Materials, Bio-Convergence Materials R&D Division, Korea Institute of Ceramic Engineering and Technology, Cheongju 28160, Republic of Korea
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
| | - Jin Sil Lee
- Center for Bio-Healthcare Materials, Bio-Convergence Materials R&D Division, Korea Institute of Ceramic Engineering and Technology, Cheongju 28160, Republic of Korea
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
| | - Daekyung Sung
- Center for Bio-Healthcare Materials, Bio-Convergence Materials R&D Division, Korea Institute of Ceramic Engineering and Technology, Cheongju 28160, Republic of Korea
| | - Siyoung Yang
- Department of Pharmacology, Ajou University School of Medicine, Suwon 16499, Republic of Korea
| | - Won Il Choi
- Center for Bio-Healthcare Materials, Bio-Convergence Materials R&D Division, Korea Institute of Ceramic Engineering and Technology, Cheongju 28160, Republic of Korea
- Correspondence: ; Tel.: +82-43-913-1513
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de Oliveira ACV, de Morais FAP, Campanholi KDSS, Bidóia DL, Balbinot RB, Nakamura CV, Caetano W, Hioka N, Monteiro ODS, da Rocha CQ, Gonçalves RS. Melanoma-targeted photodynamic therapy based on hypericin-loaded multifunctional P123-spermine/folate micelles. Photodiagnosis Photodyn Ther 2022; 40:103103. [PMID: 36057363 DOI: 10.1016/j.pdpdt.2022.103103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/18/2022] [Accepted: 08/30/2022] [Indexed: 12/14/2022]
Abstract
Multifunctional P123 micelle linked covalently with spermine (SM) and folic acid (FA) was developed as a drug delivery system of hypericin (HYP). The chemical structures of the modified copolymers were confirmed by spectroscopy and spectrophotometric techniques (UV-vis, FTIR, and 1H NMR). The copolymeric micelles loading HYP were prepared by solid dispersion and characterized by UV-vis, fluorescence, dynamic light scattering (DLS), ζ potential, and transmission electron microscopy (TEM). The results provided a good level of stability for HYP-loaded P123-SM, P123-FA, and P123-SM/P123-FA in the aqueous medium. The morphology analysis showed that all copolymeric micelles are spherical. Well-defined regions of different contrast allow us to infer that SM and FA were localized on the surface of micelles, and the HYP molecules are located in the core region of micelles. The uptake potential of multifunctional P123 micelle was accessed by exposing the micellar systems loading HYP to two cell lines, B16-F10 and HaCaT. HYP-loaded P123 micelles reveal a low selectivity for melanoma cells, showing significant photodamage for HaCat cells. However, the exposition of B16-F10 cells to Hyp-loaded SM- and FA-functionalized P123 micelles under light irradiation revealed the lowest CC50 values. The interpretation of these results suggested that the combination of SM and FA on P123 micelles is the main factor in enhancing the HYP uptake by melanoma cells, consequently leading to its photoinactivation.
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Affiliation(s)
| | | | | | - Danielle Lazarin Bidóia
- Department of Physics, State University of Maringá, 5790 Colombo Ave., 87020-900 Maringá, PR, Brazil
| | - Rodolfo Bento Balbinot
- Department of Physics, State University of Maringá, 5790 Colombo Ave., 87020-900 Maringá, PR, Brazil
| | - Celso Vataru Nakamura
- Department of Physics, State University of Maringá, 5790 Colombo Ave., 87020-900 Maringá, PR, Brazil
| | - Wilker Caetano
- Department of Chemistry, State University of Maringá, 5790 Colombo Ave., 87020-900 Maringá, PR, Brazil
| | - Noboru Hioka
- Department of Chemistry, State University of Maringá, 5790 Colombo Ave., 87020-900 Maringá, PR, Brazil
| | - Odair Dos Santos Monteiro
- Laboratory of Chemistry of Natural Products, Department of Chemistry, Center for Exact Sciences and Technology, Federal University of Maranhão, São Luís, MA, Brazil
| | - Cláudia Quintino da Rocha
- Laboratory of Chemistry of Natural Products, Department of Chemistry, Center for Exact Sciences and Technology, Federal University of Maranhão, São Luís, MA, Brazil
| | - Renato Sonchini Gonçalves
- Laboratory of Chemistry of Natural Products, Department of Chemistry, Center for Exact Sciences and Technology, Federal University of Maranhão, São Luís, MA, Brazil.
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Direct and Reverse Pluronic Micelles: Design and Characterization of Promising Drug Delivery Nanosystems. Pharmaceutics 2022; 14:pharmaceutics14122628. [PMID: 36559122 PMCID: PMC9787366 DOI: 10.3390/pharmaceutics14122628] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/19/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022] Open
Abstract
Pluronics are a family of amphiphilic block copolymers broadly explored in the pharmaceutical field. Under certain conditions, Pluronics self-assemble in different structures including nanosized direct and reverse micelles. This review provides an overview about the main parameters affecting the micellization process of Pluronics, such as polymer length, fragments distribution within the chain, solvents, additives and loading of cargo. Furthermore, it offers a guide about the most common techniques used to characterize the structure and properties of the micelles. Finally, it presents up-to-date approaches to improve the stability and drug loading of Pluronic micelles. Special attention is paid to reverse Pluronics and reverse micelles, currently underexplored in the literature. Pluronic micelles present a bright future as drug delivery agents. A smart design and thorough characterization will improve the transfer to clinical applications.
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Dahanayake R, Dormidontova EE. Molecular Structure and Co-solvent Distribution in PPO–PEO and Pluronic Micelles. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Rasika Dahanayake
- Polymer Program, Institute of Materials Science and Department of Physics, University of Connecticut, Storrs, Connecticut06269, United States
| | - Elena E. Dormidontova
- Polymer Program, Institute of Materials Science and Department of Physics, University of Connecticut, Storrs, Connecticut06269, United States
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Non-Ionic Surfactant Effects on Innate Pluronic 188 Behavior: Interactions, and Physicochemical and Biocompatibility Studies. Int J Mol Sci 2022; 23:ijms232213814. [PMID: 36430294 PMCID: PMC9697813 DOI: 10.3390/ijms232213814] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/07/2022] [Accepted: 11/08/2022] [Indexed: 11/11/2022] Open
Abstract
The aim of this research was to prepare novel block copolymer-surfactant hybrid nanosystems using the triblock copolymer Pluronic 188, along with surfactants of different hydrophilic to lipophilic balance (HLB ratio-which indicates the degree to which a surfactant is hydrophilic or hydrophobic) and thermotropic behavior. The surfactants used were of non-ionic nature, of which Tween 80® and Brij 58® were more hydrophilic, while Span 40® and Span 60® were more hydrophobic. Each surfactant has unique innate thermal properties and an affinity towards Pluronic 188. The nanosystems were formulated through mixing the pluronic with the surfactants at three different ratios, namely 90:10, 80:20, and 50:50, using the thin-film hydration technique and keeping the pluronic concentration constant. The physicochemical characteristics of the prepared nanosystems were evaluated using various light scattering techniques, while their thermotropic behavior was characterized via microDSC and high-resolution ultrasound spectroscopy. Microenvironmental parameters were attained through the use of fluorescence spectroscopy, while the cytotoxicity of the nanocarriers was studied in vitro. The results indicate that the combination of Pluronic 188 with the above surfactants was able to produce hybrid homogeneous nanoparticle populations of adequately small diameters. The different surfactants had a clear effect on physicochemical parameters such as the size, hydrodynamic diameter, and polydispersity index of the final formulation. The mixing of surfactants with the pluronic clearly changed its thermotropic behavior and thermal transition temperature (Tm) and highlighted the specific interactions that occurred between the different materials, as well as the effect of increasing the surfactant concentration on inherent polymer characteristics and behavior. The formulated nanosystems were found to be mostly of minimal toxicity. The obtained results demonstrate that the thin-film hydration method can be used for the formulation of pluronic-surfactant hybrid nanoparticles, which in turn exhibit favorable characteristics in terms of their possible use in drug delivery applications. This investigation can be used as a road map for the selection of an appropriate nanosystem as a novel vehicle for drug delivery.
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Co-encapsulation of PI3-Kδ/HDAC6 dual inhibitor and Navitoclax in Quatramer™ nanoparticles for synergistic effect in ER+ breast cancer. Int J Pharm 2022; 628:122343. [DOI: 10.1016/j.ijpharm.2022.122343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 10/19/2022] [Accepted: 10/22/2022] [Indexed: 11/11/2022]
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Bardoula V, Leclercq L, Hoogenboom R, Nardello-Rataj V. Amphiphilic nonionic block and gradient copoly(2-oxazoline)s based on 2-methyl-2-oxazoline and 2-phenyl-2-oxazoline as efficient stabilizers for the formulation of tailor-made emulsions. J Colloid Interface Sci 2022; 632:223-236. [DOI: 10.1016/j.jcis.2022.11.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 10/31/2022] [Accepted: 11/05/2022] [Indexed: 11/10/2022]
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Dash S, Rajesh P, Joshi R, Rajeswari S, Karunanithi P. Pre-irradiation of surfactants to enhance their capacity to solubilise drugs and dyes. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Shetty K, Yasaswi S, Dutt S, Yadav KS. Multifunctional nanocarriers for delivering siRNA and miRNA in glioblastoma therapy: advances in nanobiotechnology-based cancer therapy. 3 Biotech 2022; 12:301. [PMID: 36276454 PMCID: PMC9525514 DOI: 10.1007/s13205-022-03365-2] [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: 03/08/2022] [Accepted: 09/17/2022] [Indexed: 11/30/2022] Open
Abstract
Glioblastoma multiforme (GBM) is one of the most lethal cancer due to poor diagnosis and rapid resistance developed towards the drug. Genes associated to cancer-related overexpression of proteins, enzymes, and receptors can be suppressed using an RNA silencing technique. This assists in obtaining tumour targetability, resulting in less harm caused to the surrounding healthy cells. RNA interference (RNAi) has scientific basis for providing potential therapeutic applications in improving GBM treatment. However, the therapeutic application of RNAi is challenging due to its poor permeability across blood-brain barrier (BBB). Nanobiotechnology has evolved the use of nanocarriers such as liposomes, polymeric nanoparticles, gold nanoparticles, dendrimers, quantum dots and other nanostructures in encasing the RNAi entities like siRNA and miRNA. The review highlights the role of these carriers in encasing siRNA and miRNA and promising therapy in delivering them to the glioma cells.
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Affiliation(s)
- Karishma Shetty
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM’S NMIMS (Deemed to be University), Mumbai, India
| | - Soma Yasaswi
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM’S NMIMS (Deemed to be University), Mumbai, India
| | - Shilpee Dutt
- Shilpee Dutt Laboratory, Tata Memorial Centre, Advanced Centre for Treatment, Research and Education in Cancer, Navi Mumbai, 410210 India
- Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, 400085 India
| | - Khushwant S. Yadav
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM’S NMIMS (Deemed to be University), Mumbai, India
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Alvarez-Figueroa MJ, Alarcón DA, González-Aramúndiz JV. Effect of zeta potential of innovative lipid nanocapsules on triamcinolone transdermal delivery. Drug Deliv Transl Res 2022; 12:2740-2750. [PMID: 35284985 DOI: 10.1007/s13346-022-01134-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/05/2022] [Indexed: 12/15/2022]
Abstract
Two pegylated lipid nanocapsules for triamcinolone transdermal delivery were designed. Both present a size close to 50 nm and a single monomodal distribution in particle size (PI < 0.2), with a zeta potential of - 20 ± 2 and + 18 ± 1, respectively. The triamcinolone encapsulation efficacy varied between 68 and 80%. They proved to be stable under storage conditions (4 °C) for at least 6 months and at a physiological temperature, using different media, for 48 h. Also, they were shown not to affect cell viability at the concentrations used. For ex vivo transdermal experiments, newborn pig skin was used. With respect to the triamcinolone transdermal penetration, the nanocapsules were demonstrated to have an absorption promoting effect, both when the drug nanocapsules were in solution or loaded into the hydrogel, quantifying between 2 and 15 times more absorbed drug than the control. In addition, regarding the triamcinolone retained in the skin, it is observed that lipid nanocapsules act as triamcinolone promoters when the nanosystems were in solution and when they were included in the hydrogel. This vehicle showed a greater triamcinolone reservoir effect in comparison to the nanocapsules, proving to be a good vehicle to formulate triamcinolone transdermal delivery.
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Affiliation(s)
- María Javiera Alvarez-Figueroa
- Departamento de Farmacia, Facultad de Química Y de Farmacia, Pontificia Universidad Católica de Chile, Vicuña Mackena 4860, 7820436, Macul, Santiago, CP, Chile.
| | - Diego A Alarcón
- Departamento de Farmacia, Facultad de Química Y de Farmacia, Pontificia Universidad Católica de Chile, Vicuña Mackena 4860, 7820436, Macul, Santiago, CP, Chile
| | - José Vicente González-Aramúndiz
- Departamento de Farmacia, Facultad de Química Y de Farmacia, Pontificia Universidad Católica de Chile, Vicuña Mackena 4860, 7820436, Macul, Santiago, CP, Chile. .,Centro de Investigación en Nanotecnología Y Materiales Avanzados "CIEN-UC", Pontificia Universidad Católica de Chile, Santiago, Chile.
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