Author
Pieter R. Cullis
Other affiliations: Utrecht University, Princeton University, Centre for Drug Research and Development ...read more
Bio: Pieter R. Cullis is an academic researcher from University of British Columbia. The author has contributed to research in topics: Liposome & Vesicle. The author has an hindex of 113, co-authored 458 publications receiving 49522 citations. Previous affiliations of Pieter R. Cullis include Utrecht University & Princeton University.
Topics: Liposome, Vesicle, Bilayer, Lipid bilayer, Biological membrane
Papers published on a yearly basis
Papers
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TL;DR: There is considerable interest in exploiting the advantages of DDS for in vivo delivery of new drugs derived from proteomics or genomics research and for their use in ligand-targeted therapeutics.
Abstract: Drug delivery systems (DDS) such as lipid- or polymer-based nanoparticles can be designed to improve the pharmacological and therapeutic properties of drugs administered parenterally. Many of the early problems that hindered the clinical applications of particulate DDS have been overcome, with several DDS formulations of anticancer and antifungal drugs now approved for clinical use. Furthermore, there is considerable interest in exploiting the advantages of DDS for in vivo delivery of new drugs derived from proteomics or genomics research and for their use in ligand-targeted therapeutics.
4,162 citations
TL;DR: Lipidic nanoparticles are the first nanomedicine delivery system to make the transition from concept to clinical application, and they are now an established technology platform with considerable clinical acceptance.
3,497 citations
TL;DR: A technique for the rapid production of large unilamellar vesicles by repeated extrusion under moderate pressures by employing the lipophilic cation methyltriphenylphosphonium (MTPP⁺) and LUVET systems exhibiting a membrane potential in response to a transmembrane Na⁺/K⁺ gradient have been characterized.
2,092 citations
TL;DR: The possible functional roles of lipids are reviewed in terms of previous models such as the fluid mosaic model of Singer and Nicolson or the earlier unit membrane model so that the requirement for an alternative approach becomes apparent.
1,751 citations
TL;DR: Freeze-fracture electron microscopy revealed that vesicles produced at very high lipid concentrations exhibit size distributions and extent of multilamellar character comparable to systems produced at lower lipid levels.
1,689 citations
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TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.
Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …
33,785 citations
TL;DR: How do cells apply anabolic and catabolic enzymes, translocases and transporters, plus the intrinsic physical phase behaviour of lipids and their interactions with membrane proteins, to create the unique compositions and multiple functions of their individual membranes?
Abstract: Throughout the biological world, a 30 A hydrophobic film typically delimits the environments that serve as the margin between life and death for individual cells. Biochemical and biophysical findings have provided a detailed model of the composition and structure of membranes, which includes levels of dynamic organization both across the lipid bilayer (lipid asymmetry) and in the lateral dimension (lipid domains) of membranes. How do cells apply anabolic and catabolic enzymes, translocases and transporters, plus the intrinsic physical phase behaviour of lipids and their interactions with membrane proteins, to create the unique compositions and multiple functionalities of their individual membranes?
5,720 citations
TL;DR: There is considerable interest in exploiting the advantages of DDS for in vivo delivery of new drugs derived from proteomics or genomics research and for their use in ligand-targeted therapeutics.
Abstract: Drug delivery systems (DDS) such as lipid- or polymer-based nanoparticles can be designed to improve the pharmacological and therapeutic properties of drugs administered parenterally. Many of the early problems that hindered the clinical applications of particulate DDS have been overcome, with several DDS formulations of anticancer and antifungal drugs now approved for clinical use. Furthermore, there is considerable interest in exploiting the advantages of DDS for in vivo delivery of new drugs derived from proteomics or genomics research and for their use in ligand-targeted therapeutics.
4,162 citations
TL;DR: Lipidic nanoparticles are the first nanomedicine delivery system to make the transition from concept to clinical application, and they are now an established technology platform with considerable clinical acceptance.
3,497 citations
Journal Article•
TL;DR: The surface mechanisms, which affords red blood cells long-circulatory lives and the ability of specific microorganisms to evade macrophage recognition, are explored and the rational approaches in the design as well as the biological performance of such constructs are assessed.
Abstract: The rapid recognition of intravenously injected colloidal carriers, such as liposomes and polymeric nanospheres from the blood by Kupffer cells, has initiated a surge of development for "Kupffer cell-evading" or long-circulating particles. Such carriers have applications in vascular drug delivery and release, site-specific targeting (passive as well as active targeting), as well as transfusion medicine. In this article we have critically reviewed and assessed the rational approaches in the design as well as the biological performance of such constructs. For engineering and design of long-circulating carriers, we have taken a lead from nature. Here, we have explored the surface mechanisms, which affords red blood cells long-circulatory lives and the ability of specific microorganisms to evade macrophage recognition. Our analysis is then centered where such strategies have been translated and fabricated to design a wide range of particulate carriers (e.g., nanospheres, liposomes, micelles, oil-in-water emulsions) with prolonged circulation and/or target specificity. With regard to the targeting issues, attention is particularly focused on the importance of physiological barriers and disease states.
3,413 citations