Distribution of a highly lipophilic drug cannabidiol into different lymph nodes following oral administration in lipidic vehicle

Jewell, Adelaide; Brookes, Alice; Feng, Wanshan; Ashford, Marianne; Gellert, Paul; Butler, James; Fischer, Peter M.; Scurr, David J.; Stocks, Michael J.; Gershkovich, Pavel

Abstract

Efficient delivery of highly lipophilic drugs or prodrugs to the mesenteric lymph nodes (MLN) can be achieved following oral administration with lipids. However, it remains unclear which specific MLN can be targeted and to what extent. Moreover, the efficiency of drug delivery to the retroperitoneal lymph nodes (RPLN) has not been assessed. The aim of this study was to assess the distribution of a highly lipophilic model drug cannabidiol (CBD), known to undergo intestinal lymphatic transport following administration with lipids, into specific MLN and RPLN in rats at various time-points post dosing. In vivo studies showed that at 2 h following administration, significantly higher concentrations of CBD were present in the region second from the apex of the MLN chain. From 3 h following administration, concentrations in all MLN were similar. CBD was also found at substantial levels in RPLN. This study demonstrates that drug concentrations in specific MLN are different, at least at the peak of the absorption process. Moreover, in addition to the MLN, the RPLN may also be targeted by oral route of administration, which may have further implications for treatment of a range of diseases.

Citation

Jewell, A., Brookes, A., Feng, W., Ashford, M., Gellert, P., Butler, J., …Gershkovich, P. (2022). Distribution of a highly lipophilic drug cannabidiol into different lymph nodes following oral administration in lipidic vehicle. European Journal of Pharmaceutics and Biopharmaceutics, 174, 29-34. https://doi.org/10.1016/j.ejpb.2022.03.014

• Journal Article Type: Article
• Acceptance Date: Mar 27, 2022
• Online Publication Date: Apr 1, 2022
• Publication Date: May 1, 2022
• Deposit Date: Mar 28, 2022
• Publicly Available Date: Apr 2, 2023
• Journal: European Journal of Pharmaceutics and Biopharmaceutics
• Electronic ISSN: 1873-3441
• Publisher: Elsevier BV
• Peer Reviewed: Peer Reviewed
• Volume: 174
• Pages: 29-34
• DOI: https://doi.org/10.1016/j.ejpb.2022.03.014
• Keywords: Pharmaceutical Science; General Medicine; Biotechnology
• Public URL: https://nottingham-repository.worktribe.com/output/7675476
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S0939641122000625