Cited by 67Retinoids in leukemia and cellular processesNanoparticle-Based Drug DeliveryDrug Transport and Resistance Mechanisms

Liposome encapsulation circumvents the hepatic clearance mechanisms of all-trans-retinoic acid

Mehta, Kapil, Sadeghi, Taraneh, McQueen, Teresa, Lopez-Berestein, Gabriel·1994·Leukemia Research

Abstract

All-trans-retinoic acid (ATRA) has been proven active against a range of malignancies in isolated tissue culture systems and in human clinical trials, but the duration of its effects has been transient. Recent evidence indicates that the basis for the limited duration of ATRA's activity, at least in one form of leukemia, is a pharmacological adaptation that results in reduced serum concentration after prolonged treatment. This finding suggests that an i.v. formulation of ATRA may significantly improve the potency and duration of ATRA's activity in leukemia and, potentially, other malignancies as well. Liposomal ATRA (L-ATRA) was developed to provide a formulation of this retinoic acid isomer that can be administered intravenously to provide potential pharmacological advantages over the oral formulation. When L-ATRA was administered to rats over a prolonged period, the blood levels of the drug did not change over time. In vitro studies of isolated liver microsomes revealed that catabolism of the drug was not altered in rats that were repeatedly administered the L-ATRA formulation. Whereas microsomes isolated from animals that were orally administered free ATRA the same number of times with the same doses showed a significant increase in metabolism of the drug. These results suggest that an i.v. formulation of ATRA such as L-ATRA could be extremely useful in inducing long-term remissions in patients with APL.

Integrity signals

Registry

Crossref · 10.1016/0145-2126(94)90040-x

Cites

35 of 35 references verified0 citation errors · 0 not checkable

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  • Sustained release of RA for more than 1 month can be accomplished by encapsulating it into biodegradable microspheres and tuning release rate by adjusting polymer composition, by encapsulation in polyion complex micelles and adjusting polymer composition or drug content, or by encapsulation in liposomes.

    “The sustained release of RA for more than 1 month can be accomplished by encapsulating it into biodegradable microspheres and tuning the release rate by adjusting polymer composition in the formulation61, by the encapsulation in polyion complex micelles62 and adjusting polymer composition or drug content, or by the encapsulation in liposomes49.”
  • In vivo tests showed that rats or human patients treated with ATRA-containing liposomes by intravenous administration had no decrease in plasma ATRA levels while animals/humans treated with oral formulation of ATRA (nonliposomal) had a significant decrease in plasma ATRA levels.

    “In vivo tests showed that rats49 or human patients70 treated with ATRA-containing liposomes by intravenous administration had no decrease in plasma ATRA levels while animals/humans treated with oral formulation of ATRA (nonliposomal) had a significant decrease in plasma ATRA levels41,49.”
  • Intravenous administration of RA-containing liposomes for 7 weeks in rats did not enhance RA catabolism.

    “intravenous administration of RA-containing liposomes for 7 weeks in rats did not enhance RA catabolism49.”

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Authors
Mehta, K., Sadeghi, T., McQueen, T., & Lopez-Berestein, G.
Affiliations
The University of Texas MD Anderson Cancer Center (US)
Corresponding author
Mehta, Kapil
Venue
Leukemia Research
Publisher
Elsevier BV
Published
1994-08
Volume
18
Issue
8
Pages
587-596
ISSN
0145-2126 (ISSN-L)
OpenAlex
W2086225584
Cited by
67
References
36
Citations by year
2025: 1 · 2022: 2 · 2021: 1 · 2020: 3 · 2018: 1 · 2017: 2 · 2016: 2 · 2015: 4 · 2013: 2 · 2012: 2
FWCI
1.65
Type
journal article
Language
en
Open access
closed
Locations
  • Leukemia Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • U.S. Food and Drug Administration (FD-R 000923)
  • National Cancer Institute (NCI CA 16672)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinoids in leukemia and cellular processes
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
  • Health Sciences › Medicine › Oncology › Drug Transport and Resistance Mechanisms
Keywords
all-trans retinoic acid, liposomal drug delivery, hepatic clearance, drug metabolism, liver microsomes, acute promyelocytic leukemia, intravenous administration, oral dosage forms, drug catabolism, long-term remission
MeSH terms
Animals, Chromatography, High Pressure Liquid, Drug Carriers, Female, Injections, Intravenous, Liposomes, Liver, Microsomes, Liver, Rats, Inbred Lew, Tretinoin, Receptors, Retinoic Acid, Rats

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