1
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Subasic CN, Butcher NJ, Minchin RF, Kaminskas LM. Dose-Dependent Production of Anti-PEG IgM after Intramuscular PEGylated-Hydrogenated Soy Phosphatidylcholine Liposomes, but Not Lipid Nanoparticle Formulations of DNA, Correlates with the Plasma Clearance of PEGylated Liposomal Doxorubicin in Rats. Mol Pharm 2023; 20:3494-3504. [PMID: 37256791 DOI: 10.1021/acs.molpharmaceut.3c00104] [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] [Indexed: 06/02/2023]
Abstract
PEGylated lipid nanoparticle-based Covid-19 vaccines, including Pfizer's BNT162b2 and Moderna's mRNA-1273, have been shown to stimulate variable anti-PEG antibody production in humans. Anti-PEG antibodies have the potential to accelerate the plasma clearance of PEGylated therapeutics, such as PEGylated liposomes and proteins, and compromise their therapeutic efficacy. However, it is not yet clear whether antibody titers produced by PEGylated Covid-19 vaccines significantly affect the clearance of PEGylated therapeutics. This study examined how anti-PEG IgM levels affect the pharmacokinetics of PEGylated liposomal doxorubicin (PLD) and compared the immunogenicity of a lipid nanoparticle formulation of linear DNA (DNA-LNP) to standard PEG-HSPC liposomes. DNA-LNP was prepared using the same composition and approach as Pfizer's BNT162b2, except linear double-stranded DNA was used as the genetic material. PEGylated HSPC-based liposomes were formulated using the lipid rehydration and extrusion method. Nanoparticles were dosed IM to rats at 0.005-0.5 mg lipid/kg body weight 1 week before evaluating the plasma pharmacokinetics of clinically relevant doses of PLD (1 mg/kg, IV) or PEGylated interferon α2a (Pegasys, 5 μg/kg, SC). Plasma PEG IgM was compared between pre- and 1-week post-dose blood samples. The results showed that anti-PEG IgM production increased with increasing PEG-HSPC liposome dose and that IgM significantly correlated with the plasma half-life, clearance, volume of distribution, and area under the curve of a subsequent dose of PLD. The plasma exposure of Pegasys was also significantly reduced after initial delivery of 0.005 mg/ml PEG-HSPC liposome. However, a single 0.05 mg/kg IM dose of DNA-LNP did not significantly elevate PEG IgM and did not alter the IV pharmacokinetics of PLD. These data showed that PEGylated Covid-19 vaccines are less immunogenic compared to standard PEGylated HSPC liposomes and that there is an antibody threshold for accelerating the clearance of PEGylated therapeutics.
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Affiliation(s)
- Christopher N Subasic
- School of Biomedical Sciences, University of Queensland, St Lucia, QLD 4072, Australia
| | - Neville J Butcher
- School of Biomedical Sciences, University of Queensland, St Lucia, QLD 4072, Australia
| | - Rodney F Minchin
- School of Biomedical Sciences, University of Queensland, St Lucia, QLD 4072, Australia
| | - Lisa M Kaminskas
- School of Biomedical Sciences, University of Queensland, St Lucia, QLD 4072, Australia
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2
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Ascher DB, Kaminskas LM, Myung Y, Pires DEV. Using Graph-Based Signatures to Guide Rational Antibody Engineering. Methods Mol Biol 2023; 2552:375-397. [PMID: 36346604 DOI: 10.1007/978-1-0716-2609-2_21] [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] [Indexed: 06/16/2023]
Abstract
Antibodies are essential experimental and diagnostic tools and as biotherapeutics have significantly advanced our ability to treat a range of diseases. With recent innovations in computational tools to guide protein engineering, we can now rationally design better antibodies with improved efficacy, stability, and pharmacokinetics. Here, we describe the use of the mCSM web-based in silico suite, which uses graph-based signatures to rapidly identify the structural and functional consequences of mutations, to guide rational antibody engineering to improve stability, affinity, and specificity.
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Affiliation(s)
- David B Ascher
- Structural Biology and Bioinformatics, Department of Biochemistry and Molecular Biology, Bio21 Institute, University of Melbourne, Parkville, VIC, Australia
- Computational Biology and Clinical Informatics, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Department of Biochemistry, Cambridge University, Cambridge, UK
- School of Chemistry and Molecular Biosciences, University of Queensland, St Lucia, Queensland, Australia
| | - Lisa M Kaminskas
- School of Biological Sciences, University of Queensland, St Lucia, QLD, Australia
| | - Yoochan Myung
- Structural Biology and Bioinformatics, Department of Biochemistry and Molecular Biology, Bio21 Institute, University of Melbourne, Parkville, VIC, Australia
- Computational Biology and Clinical Informatics, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- School of Chemistry and Molecular Biosciences, University of Queensland, St Lucia, Queensland, Australia
| | - Douglas E V Pires
- Structural Biology and Bioinformatics, Department of Biochemistry and Molecular Biology, Bio21 Institute, University of Melbourne, Parkville, VIC, Australia.
- Computational Biology and Clinical Informatics, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia.
- School of Computing and Information Systems, University of Melbourne, Parkville, VIC, Australia.
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3
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Feeney OM, Ardipradja K, Noi KF, Mehta D, De Rose R, Yuen D, Johnston APR, Kingston L, Ericsson C, Elmore CS, Hufton R, Owen DJ, Ashford MB, Porter CJH. Subcutaneous delivery of a dendrimer-BH3 mimetic improves lymphatic uptake and survival in lymphoma. J Control Release 2022; 348:420-430. [PMID: 35636618 DOI: 10.1016/j.jconrel.2022.05.041] [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: 12/05/2021] [Revised: 04/17/2022] [Accepted: 05/24/2022] [Indexed: 10/18/2022]
Abstract
As a malignant tumour of lymphatic origin, B-cell lymphoma represents a significant challenge for drug delivery, where effective therapies must access malignant cells in the blood, organs and lymphatics while avoiding off-target toxicity. Subcutaneous (SC) administration of nanomedicines allows preferential access to both the lymphatic and blood systems and may therefore provide a route to enhanced drug exposure to lymphomas. Here we examine the impact of SC dosing on lymphatic exposure, pharmacokinetics (PK), and efficacy of AZD0466, a small molecule dual Bcl-2/Bcl-xL inhibitor conjugated to a 'DEP®' G5 poly-l-lysine dendrimer. PK studies reveal that the plasma half-life of the dendrimer-drug conjugate is 8-times longer than that of drug alone, providing evidence of slow release from the circulating dendrimer nanocarrier. The SC dosed construct also shows preferential lymphatic transport, with over 50% of the bioavailable dose recovered in thoracic lymph. Increases in dose (up to 400 mg/kg) are well tolerated after SC administration and studies in a model of disseminated lymphoma in mice show that high dose SC treatment outperforms IV administration using doses that lead to similar total plasma exposure (lower peak concentrations but extended exposure after SC). These data show that the DEP® dendrimer can act as a circulating drug depot accessing both the lymphatic and blood circulatory systems. SC administration improves lymphatic exposure and facilitates higher dose administration due to improved tolerability. Higher dose SC administration also results in improved efficacy, suggesting that drug delivery systems that access both plasma and lymph hold significant potential for the treatment of haematological cancers where lymphatic and extranodal dissemination are poor prognostic factors.
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Affiliation(s)
- Orlagh M Feeney
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Katie Ardipradja
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Ka Fung Noi
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Dharmini Mehta
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Robert De Rose
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Daniel Yuen
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Angus P R Johnston
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Lee Kingston
- Early Chemical Development, Pharmaceutical Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Cecilia Ericsson
- Early Chemical Development, Pharmaceutical Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Charles S Elmore
- Early Chemical Development, Pharmaceutical Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | | | - David J Owen
- Starpharma PTY Ltd., Abbotsford, Victoria, Australia
| | - Marianne B Ashford
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D, AstraZeneca, Macclesfield, UK.
| | - Christopher J H Porter
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia.
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4
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Lam AD, Cao E, Leong N, Gracia G, J. H. Porter C, Feeney OM, Trevaskis NL. Intra-articular injection of biologic anti-rheumatic drugs enhances local exposure to the joint-draining lymphatics. Eur J Pharm Biopharm 2022; 173:34-44. [DOI: 10.1016/j.ejpb.2022.02.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/14/2022] [Accepted: 02/21/2022] [Indexed: 12/27/2022]
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5
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Charelli LE, de Mattos GC, de Jesus Sousa-Batista A, Pinto JC, Balbino TA. Polymeric nanoparticles as therapeutic agents against coronavirus disease. JOURNAL OF NANOPARTICLE RESEARCH : AN INTERDISCIPLINARY FORUM FOR NANOSCALE SCIENCE AND TECHNOLOGY 2022; 24:12. [PMID: 35035277 PMCID: PMC8747451 DOI: 10.1007/s11051-022-05396-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 12/30/2021] [Indexed: 05/04/2023]
Abstract
Nanotechnology has the potential to improve the combat against life-threatening conditions. Considering the COVID-19 scenario, and future outbreaks, nanotechnology can play a pivotal role in several steps, ranging from disinfection protocols, manufacture of hospital clothes, to implementation of healthcare settings. Polymeric nanoparticles are colloidal particles with size ranging from 10 to 999 nm, composed of natural or synthetic polymers. The versatility of polymeric-based nanoparticle engineering can provide (i) specificity, (ii) tunable release kinetics, and (iii) multimodal drug composition, making it possible to overcome common limitations encountered during traditional drug development. Consequently, these particles have been widely used as drug delivery systems against several diseases, such as cancer. Due to inherent competitive advantages, polymeric-based nanoparticles hold astonishing potential to counteract the new coronavirus disease (COVID-19). For this reason, in the present study, the latest advancements in polymer-based nanotechnology approaches used to fight against SARS-CoV-2 are compiled and discussed. Moreover, the importance of forefront in vitro technologies - such as 3D bioprinting and organ-on-chip - to evaluate the efficacy of nanotherapeutic agents is also highlighted. Polymeric nanoparticles can be functionalized to enhance its potential as a nanotherapeutic agent. Due to its many advantages, polymeric-based nanoparticles systems are a promising approach against coronavirus disease 2019 (COVID-19).
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Affiliation(s)
- Letícia Emiliano Charelli
- Nanotechnology Engineering Department, Alberto Luiz Coimbra Institute for Graduate Studies and Research in Engineering, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gabriela Calidone de Mattos
- Chemical Engineering Department, Alberto Luiz Coimbra Institute for Graduate Studies and Research in Engineering, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ariane de Jesus Sousa-Batista
- Nanotechnology Engineering Department, Alberto Luiz Coimbra Institute for Graduate Studies and Research in Engineering, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - José Carlos Pinto
- Chemical Engineering Department, Alberto Luiz Coimbra Institute for Graduate Studies and Research in Engineering, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tiago Albertini Balbino
- Nanotechnology Engineering Department, Alberto Luiz Coimbra Institute for Graduate Studies and Research in Engineering, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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6
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Subasic CN, Ardana A, Chan LJ, Huang F, Scoble JA, Butcher NJ, Meagher L, Chiefari J, Kaminskas LM, Williams CC. Poly(HPMA-co-NIPAM) copolymer as an alternative to polyethylene glycol-based pharmacokinetic modulation of therapeutic proteins. Int J Pharm 2021; 608:121075. [PMID: 34481889 DOI: 10.1016/j.ijpharm.2021.121075] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 08/24/2021] [Accepted: 08/31/2021] [Indexed: 12/21/2022]
Abstract
PEGylation is the standard approach for prolonging the plasma exposure of protein therapeutics but has limitations. We explored whether polymers prepared by Reversible Addition-Fragmentation chain-Transfer (RAFT) may provide better alternatives to polyethylene glycol (PEG). Four RAFT polymers were synthesised with varying compositions, molar mass (Mn), and structures, including a homopolymer of N-(2-hydroxypropyl)methacrylamide, (pHPMA) and statistical copolymers of HPMA with poly(ethylene glycol methyl ether acrylate) p(HPMA-co-PEGA); HPMA and N-acryloylmorpholine, p(HPMA-co-NAM); and HPMA and N-isopropylacrylamide, p(HPMA-co-NIPAM). The intravenous pharmacokinetics of the polymers were then evaluated in rats. The in vitro activity and in vivo pharmacokinetics of p(HPMA-co-NIPAM)-conjugated trastuzumab Fab' and full length mAb were then evaluated. p(HPMA-co-NIPAM) prolonged plasma exposure more avidly compared to the other p(HPMA) polymers or PEG, irrespective of molecular weight. When conjugated to trastuzumab-Fab', p(HPMA-co-NIPAM) prolonged plasma exposure of the Fab' similar to PEG-Fab'. The generation of anti-PEG IgM in rats 7 days after intravenous and subcutaneous dosing of p(HPMA-co-NIPAM) conjugated trastuzumab mAb was also examined and was shown to exhibit lower immunogenicity than the PEGylated construct. These data suggest that p(HPMA-co-NIPAM) has potential as a promising copolymer for use as an alternative conjugation strategy to PEG, to prolong the plasma exposure of therapeutic proteins.
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Affiliation(s)
- Christopher N Subasic
- School of Biomedical Sciences, University of Queensland, St Lucia, QLD 4072, Australia
| | - Aditya Ardana
- CSIRO Manufacturing, 343 Royal Parade, Parkville, Victoria 3052, Australia
| | - Linda J Chan
- Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Fei Huang
- CSIRO Manufacturing, 343 Royal Parade, Parkville, Victoria 3052, Australia
| | - Judith A Scoble
- CSIRO Manufacturing, 343 Royal Parade, Parkville, Victoria 3052, Australia
| | - Neville J Butcher
- School of Biomedical Sciences, University of Queensland, St Lucia, QLD 4072, Australia
| | - Laurence Meagher
- CSIRO Manufacturing, 343 Royal Parade, Parkville, Victoria 3052, Australia; Department of Materials Science and Engineering, Monash University, 20 Research Way, Clayton, Victoria 3168, Australia
| | - John Chiefari
- CSIRO Manufacturing, 343 Royal Parade, Parkville, Victoria 3052, Australia
| | - Lisa M Kaminskas
- School of Biomedical Sciences, University of Queensland, St Lucia, QLD 4072, Australia; Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia.
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7
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Lymph-directed immunotherapy - Harnessing endogenous lymphatic distribution pathways for enhanced therapeutic outcomes in cancer. Adv Drug Deliv Rev 2020; 160:115-135. [PMID: 33039497 DOI: 10.1016/j.addr.2020.10.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 09/07/2020] [Accepted: 10/02/2020] [Indexed: 12/13/2022]
Abstract
The advent of immunotherapy has revolutionised the treatment of some cancers. Harnessing the immune system to improve tumour cell killing is now standard clinical practice and immunotherapy is the first line of defence for many cancers that historically, were difficult to treat. A unifying concept in cancer immunotherapy is the activation of the immune system to mount an attack on malignant cells, allowing the body to recognise, and in some cases, eliminate cancer. However, in spite of a significant proportion of patients that respond well to treatment, there remains a subset who are non-responders and a number of cancers that cannot be treated with these therapies. These limitations highlight the need for targeted delivery of immunomodulators to both tumours and the effector cells of the immune system, the latter being highly concentrated in the lymphatic system. In this context, macromolecular therapies may provide a significant advantage. Macromolecules are too large to easily access blood capillaries and instead typically exhibit preferential uptake via the lymphatic system. In contexts where immune cells are the therapeutic target, particularly in cancer therapy, this may be advantageous. In this review, we examine in brief the current immunotherapy approaches in cancer and how macromolecular and nanomedicine strategies may improve the therapeutic profiles of these drugs. We subsequently discuss how therapeutics directed either by parenteral or mucosal administration, can be taken up by the lymphatics thereby accessing a larger proportion of the body's immune cells. Finally, we detail drug delivery strategies that have been successfully employed to target the lymphatics.
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8
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Abdallah M, Müllertz OO, Styles IK, Mörsdorf A, Quinn JF, Whittaker MR, Trevaskis NL. Lymphatic targeting by albumin-hitchhiking: Applications and optimisation. J Control Release 2020; 327:117-128. [PMID: 32771478 DOI: 10.1016/j.jconrel.2020.07.046] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/27/2020] [Accepted: 07/29/2020] [Indexed: 12/20/2022]
Abstract
The lymphatic system plays an integral role in the development and progression of a range of disease conditions, which has impelled medical researchers and clinicians to design, develop and utilize advanced lymphatic drug delivery systems. Following interstitial administration, most therapeutics and molecules are cleared from tissues via the draining blood capillaries. Macromolecules and delivery systems >20 kDa in size or 10-100 nm in diameter are, however, transported from the interstitium via draining lymphatic vessels as they are too large to cross the blood capillary endothelium. Lymphatic uptake of small molecules can be promoted by two general approaches: administration in association with synthetic macromolecular constructs, or through hitchhiking on endogenous cells or macromolecular carriers that are transported from tissues via the lymphatics. In this paper we review the latter approach where molecules are targeted to lymph by hitchhiking on endogenous albumin transport pathways after subcutaneous, intramuscular or intradermal injection. We describe the properties of the lymphatic system and albumin that are relevant to lymphatic targeting, the characteristics of drugs and delivery systems designed to hitchhike on albumin trafficking pathways and how to further optimise these properties, and finally the current applications and potential future directions for albumin-hitchhiking approaches to target the lymphatics.
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Affiliation(s)
- Mohammad Abdallah
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Australia
| | - Olivia O Müllertz
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Australia; Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Ian K Styles
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Australia
| | - Alexander Mörsdorf
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Australia
| | - John F Quinn
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Australia
| | - Michael R Whittaker
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Australia
| | - Natalie L Trevaskis
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Australia.
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9
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Gracia G, Cao E, Feeney OM, Johnston APR, Porter CJH, Trevaskis NL. High-Density Lipoprotein Composition Influences Lymphatic Transport after Subcutaneous Administration. Mol Pharm 2020; 17:2938-2951. [DOI: 10.1021/acs.molpharmaceut.0c00348] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Gracia Gracia
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne 3052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne 3052, Australia
| | - Enyuan Cao
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne 3052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne 3052, Australia
| | - Orlagh M. Feeney
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne 3052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne 3052, Australia
| | - Angus P. R. Johnston
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne 3052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne 3052, Australia
| | - Christopher J. H. Porter
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne 3052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne 3052, Australia
| | - Natalie L. Trevaskis
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne 3052, Australia
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10
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Liu X, Zhang Y, Liang H, Zhang Y, Xu Y. microRNA-499-3p inhibits proliferation and promotes apoptosis of retinal cells in diabetic retinopathy through activation of the TLR4 signaling pathway by targeting IFNA2. Gene 2020; 741:144539. [PMID: 32160960 DOI: 10.1016/j.gene.2020.144539] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 03/06/2020] [Indexed: 12/21/2022]
Abstract
microRNAs (miRNAs) are involved in the physiological and pathophysiological processes of diabetes and its microvascular and macrovascular complications. Hence, the aim of the study was to investigate whether miR-499-3p played an important role in diabetic retinopathy. Diabetic retinopathy was developed in rats by intraperitoneal injection of streptozocin (STZ), followed by collection of retinal tissues and preparation of retinal cells. Immunohistochemical staining was used to detect expression of interferon alpha 2 (IFNA2). RT-qPCR was used to determine the expression of miR-499-3p. Bioinformatics website and dual luciferase reporter gene assay were used to validate the targeting relationship between miR-499-3p and IFNA2. Gain- and loss-of-function assays were performed to explore the functional roles of aberrantly expressed miR-499-3p and IFNA2 in retinal cell proliferation by MTT, and apoptosis by flow cytometry. In retinal tissues and cells of diabetic rats, IFNA2 expression was reduced, and miR-499-3p expression increased to activate the toll-like receptor 4 (TLR4) signaling pathway. IFNA2 was a target gene of miR-499-3p and negatively regulated by miR-499-3p. Further, downregulated miR-499-3p promoted retinal cell proliferation while suppressing apoptosis to alleviate diabetic retinopathy. All in all, miR-499-3p promoted retinopathy by enhancing activation of the TLR4 signaling pathway, which provides a new therapeutic target for diabetic retinopathy.
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Affiliation(s)
- Xiaomeng Liu
- Department of Endocrinology (2(nd) Ward), Linyi People's Hospital, Linyi 276000, PR China
| | - Yuanyuan Zhang
- Department of Endocrinology (2(nd) Ward), Linyi People's Hospital, Linyi 276000, PR China
| | - Hongwei Liang
- Department of Healthcare, Linyi People's Hospital, Linyi 276000, PR China
| | - Yusong Zhang
- Department of Image, Linyi People's Hospital, Linyi 276000, PR China
| | - Yanchao Xu
- Department of Endocrinology (2(nd) Ward), Linyi People's Hospital, Linyi 276000, PR China.
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11
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Wang L, Subasic C, Minchin RF, Kaminskas LM. Drug formulation and nanomedicine approaches to targeting lymphatic cancer metastases. Nanomedicine (Lond) 2019; 14:1605-1621. [PMID: 31166140 DOI: 10.2217/nnm-2018-0478] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Lymphatic metastasis plays an important role in cancer progression and prognosis. However, conventional small-molecule chemotherapy drugs inefficiently access the lymphatic system, making the effective eradication of lymphatic metastases difficult without dose-limiting toxicity. Various formulation and nanomedicine-based approaches can be used to significantly enhance the trafficking of small-molecule, peptide and protein drugs toward the lymphatic system to enhance drug exposure at sites of lymphatic cancer growth. However, a number of obstacles exist in translating improved lymphatic exposure into improved chemotherapeutic outcomes. This review highlights the opportunities and challenges inherent in employing formulation and nanomedicinal approaches to improve chemotherapeutic drug activity within the lymphatic system and, importantly, at sites of lymphatic cancer metastasis.
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Affiliation(s)
- Lili Wang
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Christopher Subasic
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Rodney F Minchin
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Lisa M Kaminskas
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, St Lucia, QLD 4072, Australia
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12
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The mechanisms of pharmacokinetic food-drug interactions - A perspective from the UNGAP group. Eur J Pharm Sci 2019; 134:31-59. [PMID: 30974173 DOI: 10.1016/j.ejps.2019.04.003] [Citation(s) in RCA: 186] [Impact Index Per Article: 37.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/12/2019] [Accepted: 04/02/2019] [Indexed: 02/06/2023]
Abstract
The simultaneous intake of food and drugs can have a strong impact on drug release, absorption, distribution, metabolism and/or elimination and consequently, on the efficacy and safety of pharmacotherapy. As such, food-drug interactions are one of the main challenges in oral drug administration. Whereas pharmacokinetic (PK) food-drug interactions can have a variety of causes, pharmacodynamic (PD) food-drug interactions occur due to specific pharmacological interactions between a drug and particular drinks or food. In recent years, extensive efforts were made to elucidate the mechanisms that drive pharmacokinetic food-drug interactions. Their occurrence depends mainly on the properties of the drug substance, the formulation and a multitude of physiological factors. Every intake of food or drink changes the physiological conditions in the human gastrointestinal tract. Therefore, a precise understanding of how different foods and drinks affect the processes of drug absorption, distribution, metabolism and/or elimination as well as formulation performance is important in order to be able to predict and avoid such interactions. Furthermore, it must be considered that beverages such as milk, grapefruit juice and alcohol can also lead to specific food-drug interactions. In this regard, the growing use of food supplements and functional food requires urgent attention in oral pharmacotherapy. Recently, a new consortium in Understanding Gastrointestinal Absorption-related Processes (UNGAP) was established through COST, a funding organisation of the European Union supporting translational research across Europe. In this review of the UNGAP Working group "Food-Drug Interface", the different mechanisms that can lead to pharmacokinetic food-drug interactions are discussed and summarised from different expert perspectives.
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13
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Kaminskas LM, Williams CC, Leong NJ, Chan LJ, Butcher NJ, Feeney OM, Porter CJH, Tyssen D, Tachedjian G, Ascher DB. A 30 kDa polyethylene glycol-enfuvirtide complex enhances the exposure of enfuvirtide in lymphatic viral reservoirs in rats. Eur J Pharm Biopharm 2019; 137:218-226. [PMID: 30851352 DOI: 10.1016/j.ejpb.2019.03.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 03/03/2019] [Accepted: 03/05/2019] [Indexed: 11/25/2022]
Abstract
HIV therapy with anti-retroviral drugs is limited by the poor exposure of viral reservoirs, such as lymphoid tissue, to these small molecule drugs. We therefore investigated the effect of PEGylation on the anti-retroviral activity and subcutaneous lymphatic pharmacokinetics of the peptide-based fusion inhibitor enfuvirtide in thoracic lymph duct cannulated rats. Both the peptide and the PEG were quantified in plasma and lymph via ELISA. Conjugation to a single 5 kDa linear PEG decreased anti-HIV activity three-fold compared to enfuvirtide. Whilst plasma and lymphatic exposure to peptide mass was moderately increased, the loss of anti-viral activity led to an overall decrease in exposure to enfuvirtide activity. A 20 kDa 4-arm branched PEG conjugated with an average of two enfuvirtide peptides decreased peptide activity by six-fold. Plasma and lymph exposure to enfuvirtide, however, increased significantly such that anti-viral activity was increased two- and six-fold respectively. The results suggest that a multi-enfuvirtide-PEG complex may optimally enhance the anti-retroviral activity of the peptide in plasma and lymph.
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Affiliation(s)
- Lisa M Kaminskas
- School of Biomedical Sciences, University of Queensland, Brisbane, St Lucia, QLD 4072, Australia.
| | - Charlotte C Williams
- CSIRO Materials Science and Engineering, 343 Royal Parade, Parkville, Victoria 3052, Australia
| | - Nathania J Leong
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Linda J Chan
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Neville J Butcher
- School of Biomedical Sciences, University of Queensland, Brisbane, St Lucia, QLD 4072, Australia
| | - Orlagh M Feeney
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Christopher J H Porter
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - David Tyssen
- Burnet Institute, 89 Commercial Rd, Melbourne, Victoria 3004, Australia; Department of Microbiology, Monash University, Clayton, Victoria 3168, Australia; Department of Microbiology and Immunology, University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria 3000, Australia; School of Science, College of Science, Engineering and Health, RMIT University, Melbourne, Victoria 3000, Australia
| | - Gilda Tachedjian
- Burnet Institute, 89 Commercial Rd, Melbourne, Victoria 3004, Australia; Department of Microbiology, Monash University, Clayton, Victoria 3168, Australia; Department of Microbiology and Immunology, University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria 3000, Australia; School of Science, College of Science, Engineering and Health, RMIT University, Melbourne, Victoria 3000, Australia
| | - David B Ascher
- Department of Biochemistry and Molecular Biology, Bio21 Institute, University of Melbourne, 30 Flemington Road, Parkville 3052, Australia
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14
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Imada T, Moriya K, Uchiyama M, Inukai N, Hitotsuyanagi M, Masuda A, Suzuki T, Ayukawa S, Tagawa YI, Dohmae N, Kohara M, Yamamura M, Kiga D. A Highly Bioactive Lys-Deficient IFN Leads to a Site-Specific Di-PEGylated IFN with Equivalent Bioactivity to That of Unmodified IFN-α2b. ACS Synth Biol 2018; 7:2537-2546. [PMID: 30277749 DOI: 10.1021/acssynbio.8b00188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Although conjugation with polyethylene glycol (PEGylation) improves the pharmacokinetics of therapeutic proteins, it drastically decreases their bioactivity. Site-specific PEGylation counters the reduction in bioactivity, but developing PEGylated proteins with equivalent bioactivity to that of their unmodified counterparts remains challenging. This study aimed to generate PEGylated proteins with equivalent bioactivity to that of unmodified counterparts. Using interferon (IFN) as a model protein, a highly bioactive Lys-deficient protein variant generated using our unique directed evolution methods enables the design of a site-specific di-PEGylated protein. Antiviral activity of our di-PEGylated IFN was similar to that of unmodified IFN-α2b. The di-PEGylated IFN exhibited 3.0-fold greater antiviral activity than that of a commercial PEGylated IFN. Moreover, our di-PEGylated IFN showed higher in vitro and in vivo stability than those of unmodified IFN-α2b. Hence, we propose that highly bioactive Lys-deficient proteins solve the limitation of conventional PEGylation with respect to the reduction in bioactivity of PEGylated proteins.
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Affiliation(s)
| | | | | | | | | | - Akiko Masuda
- RIKEN Center for Sustainable Resource Science, Saitama, 351-0198, Japan
| | - Takehiro Suzuki
- RIKEN Center for Sustainable Resource Science, Saitama, 351-0198, Japan
| | - Shotaro Ayukawa
- Department of Electrical Engineering and Bioscience, Waseda University, Shinjuku, Tokyo, 169-8050, Japan
| | | | - Naoshi Dohmae
- RIKEN Center for Sustainable Resource Science, Saitama, 351-0198, Japan
| | - Michinori Kohara
- Tokyo Metropolitan Institute of Medical Science, Tokyo, 156-8506, Japan
| | | | - Daisuke Kiga
- Department of Electrical Engineering and Bioscience, Waseda University, Shinjuku, Tokyo, 169-8050, Japan
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15
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Ishiwari F, Sakamoto M, Matsumura S, Fukushima T. Topology Effect of AIEgen-Appended Poly(acrylic acid) with Biocompatible Segments on Ca 2+-Sensing and Protein-Adsorption-Resistance Properties. ACS Macro Lett 2018; 7:711-715. [PMID: 35632952 DOI: 10.1021/acsmacrolett.8b00291] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We recently reported that tetraphenylethene-appended poly(acrylic acid) derivatives (e.g., PAA-TPE0.02) can serve as fluorescent Ca2+ sensors in the presence of physiological concentrations of biologically relevant ions, amino acids, and sugars. However, in the presence of basic proteins such as albumins, the Ca2+-sensing property of the polymer is significantly impaired due to the nonspecific adsorption of protein molecules, which competes with binding to Ca2+. To solve this problem, we explored new designs by focusing on the polymer-chain topology of PAA-TPE0.02 with biocompatible segments. Here, we report the Ca2+-sensing and protein-adsorption-resistance properties of various types of PAA-TPE0.02 copolymers with a poly(oligoethylene glycol acrylate) (polyOEGA) segment, featuring a random, diblock, triblock, or 4-armed-star-block structure. Through this study, we show an interesting topology effect; i.e., a branch-shaped PAA-TPE0.02-co-polyOEGA with biocompatible segments at every terminal (i.e., 4-armed-star-block copolymer) exhibits both good Ca2+-sensing and protein-adsorption-resistance properties.
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Affiliation(s)
- Fumitaka Ishiwari
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Minami Sakamoto
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Satoko Matsumura
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Takanori Fukushima
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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