Surface Modification of Erythrocytes with Lipid Anchors: Structure–Activity Relationship for Optimal Membrane Incorporation, in vivo Retention, and Immunocompatibility
Red blood cells (RBCs) are natural carriers for sustained drug delivery, imaging, and in vivo sensing. One of the popular approaches to functionalize RBCs is through lipophilic anchors, but the structural requirements for anchor stability and in vivo longevity remain to be investigated. Using fluore...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2022-08-01
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| Series: | Advanced NanoBiomed Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/anbr.202200037 |
| _version_ | 1818484433268768768 |
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| author | Hanmant Gaikwad Guankui Wang Yue Li David Bourne Dmitri Simberg |
| author_facet | Hanmant Gaikwad Guankui Wang Yue Li David Bourne Dmitri Simberg |
| author_sort | Hanmant Gaikwad |
| collection | DOAJ |
| description | Red blood cells (RBCs) are natural carriers for sustained drug delivery, imaging, and in vivo sensing. One of the popular approaches to functionalize RBCs is through lipophilic anchors, but the structural requirements for anchor stability and in vivo longevity remain to be investigated. Using fluorescent lipids with the same cyanine 3 (Cy3) headgroup but different lipid chain and linker, the labeling efficiency of RBCs and in vivo stability are investigated. Short‐chain derivatives exhibited better insertion efficiency, and mouse RBCs are better labeled than human RBCs. Short‐chain derivatives demonstrate low retention in vivo. Derivatives with ester bonds are especially unstable, due to removal and degradation. On the other hand, long‐chain, covalently linked derivatives show remarkably long retention and stability (over 80 days half life in the membrane). The clearance organs are liver and spleen with evidence of lipid transfer to the liver sinusoidal endothelium. Notably, RBCs modified with PEGylated lipid show decreased macrophage uptake. Some of the derivatives promote binding of antibodies in human plasma and mouse sera and modest increase in complement deposition and hemolysis, but these do not correlate with in vivo stability of RBCs. Ultra‐stable anchors can enable functionalization of RBCs for drug delivery, imaging, and sensing. |
| first_indexed | 2024-12-10T15:55:26Z |
| format | Article |
| id | doaj.art-7ad0b39a71f64aae849012b4d61fb1ec |
| institution | Directory Open Access Journal |
| issn | 2699-9307 |
| language | English |
| last_indexed | 2024-12-10T15:55:26Z |
| publishDate | 2022-08-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced NanoBiomed Research |
| spelling | doaj.art-7ad0b39a71f64aae849012b4d61fb1ec2022-12-22T01:42:40ZengWiley-VCHAdvanced NanoBiomed Research2699-93072022-08-0128n/an/a10.1002/anbr.202200037Surface Modification of Erythrocytes with Lipid Anchors: Structure–Activity Relationship for Optimal Membrane Incorporation, in vivo Retention, and ImmunocompatibilityHanmant Gaikwad0Guankui Wang1Yue Li2David Bourne3Dmitri Simberg4Translational Bio-Nanosciences Laboratory Department of Pharmaceutical Sciences The Skaggs School of Pharmacy and Pharmaceutical Sciences University of Colorado Anschutz, Medical Campus Aurora CO 80045 USATranslational Bio-Nanosciences Laboratory Department of Pharmaceutical Sciences The Skaggs School of Pharmacy and Pharmaceutical Sciences University of Colorado Anschutz, Medical Campus Aurora CO 80045 USATranslational Bio-Nanosciences Laboratory Department of Pharmaceutical Sciences The Skaggs School of Pharmacy and Pharmaceutical Sciences University of Colorado Anschutz, Medical Campus Aurora CO 80045 USACenter for Translational Pharmacokinetics and Pharmacogenomics The Skaggs School of Pharmacy and Pharmaceutical Sciences University of Colorado Anschutz Medical Campus Aurora CO 80045 USATranslational Bio-Nanosciences Laboratory Department of Pharmaceutical Sciences The Skaggs School of Pharmacy and Pharmaceutical Sciences University of Colorado Anschutz, Medical Campus Aurora CO 80045 USARed blood cells (RBCs) are natural carriers for sustained drug delivery, imaging, and in vivo sensing. One of the popular approaches to functionalize RBCs is through lipophilic anchors, but the structural requirements for anchor stability and in vivo longevity remain to be investigated. Using fluorescent lipids with the same cyanine 3 (Cy3) headgroup but different lipid chain and linker, the labeling efficiency of RBCs and in vivo stability are investigated. Short‐chain derivatives exhibited better insertion efficiency, and mouse RBCs are better labeled than human RBCs. Short‐chain derivatives demonstrate low retention in vivo. Derivatives with ester bonds are especially unstable, due to removal and degradation. On the other hand, long‐chain, covalently linked derivatives show remarkably long retention and stability (over 80 days half life in the membrane). The clearance organs are liver and spleen with evidence of lipid transfer to the liver sinusoidal endothelium. Notably, RBCs modified with PEGylated lipid show decreased macrophage uptake. Some of the derivatives promote binding of antibodies in human plasma and mouse sera and modest increase in complement deposition and hemolysis, but these do not correlate with in vivo stability of RBCs. Ultra‐stable anchors can enable functionalization of RBCs for drug delivery, imaging, and sensing.https://doi.org/10.1002/anbr.202200037complementserythrocyteshalf lifelipidsPEGred blood cells |
| spellingShingle | Hanmant Gaikwad Guankui Wang Yue Li David Bourne Dmitri Simberg Surface Modification of Erythrocytes with Lipid Anchors: Structure–Activity Relationship for Optimal Membrane Incorporation, in vivo Retention, and Immunocompatibility Advanced NanoBiomed Research complements erythrocytes half life lipids PEG red blood cells |
| title | Surface Modification of Erythrocytes with Lipid Anchors: Structure–Activity Relationship for Optimal Membrane Incorporation, in vivo Retention, and Immunocompatibility |
| title_full | Surface Modification of Erythrocytes with Lipid Anchors: Structure–Activity Relationship for Optimal Membrane Incorporation, in vivo Retention, and Immunocompatibility |
| title_fullStr | Surface Modification of Erythrocytes with Lipid Anchors: Structure–Activity Relationship for Optimal Membrane Incorporation, in vivo Retention, and Immunocompatibility |
| title_full_unstemmed | Surface Modification of Erythrocytes with Lipid Anchors: Structure–Activity Relationship for Optimal Membrane Incorporation, in vivo Retention, and Immunocompatibility |
| title_short | Surface Modification of Erythrocytes with Lipid Anchors: Structure–Activity Relationship for Optimal Membrane Incorporation, in vivo Retention, and Immunocompatibility |
| title_sort | surface modification of erythrocytes with lipid anchors structure activity relationship for optimal membrane incorporation in vivo retention and immunocompatibility |
| topic | complements erythrocytes half life lipids PEG red blood cells |
| url | https://doi.org/10.1002/anbr.202200037 |
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