Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2011-3-18
pubmed:abstractText
INTRODUCTION: The ATP-binding cassette superfamily contains membrane transporter proteins that transport a wide range of diverse compounds across cellular membranes. The P-glycoprotein (P-gp) is an important member of this family and a multi-specific drug efflux transporter that plays a significant role in governing the bioavailability of many clinically active drugs. The inhibition of this efflux transporter by various P-gp inhibitors forms a distinctive approach in improving bioavailability and conquering drug resistance. Most P-gp inhibitors exhibit limitations associated with their safety and unwanted pharmacokinetic interactions, thereby restraining their clinical applicability. AREAS COVERED: This review explores the investigations on the feasibility and applicability of various classes of P-gp inhibitors as described in recent patents for enhanced drug delivery. EXPERT OPINION: Several candidates presently under development look promising as P-gp inhibitors, e.g., tariquidar and elacridar. Pharmaceutical excipients currently constitute the most promising class of P-gp inhibitors and are considered safe and pharmaceutically acceptable for use in formulations. In addition, lipid-based excipients and thiolated polymers play an active role in affecting P-gp-mediated transport not only by altering the membrane fluidity or ATPase activity but by down regulating P-gp expression. An additional overture such as the prodrug derivatization of P-gp substrates is a feasible approach to bypass P-gp-mediated efflux.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1744-7674
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
21
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
561-76
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
The emerging role of P-glycoprotein inhibitors in drug delivery: a patent review.
pubmed:affiliation
Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard Hamdard University, New Delhi 110062, India.
pubmed:publicationType
Journal Article, Review, Research Support, Non-U.S. Gov't