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The multispecific organic anion transporter family: properties and pharmacological significance

Hiroki Miyazaki1, Takashi Sekine, Hitoshi Endou

  • 1Department of Pharmacology and Toxicology, Kyorin University School of Medicine, 6-20-2, Shinkawa, Mitaka-shi, Tokyo 181-8611, Japan.

Trends in Pharmacological Sciences
|November 9, 2004
PubMed

Insights

The organic anion transport (OAT) family, identified by SLC22A, is crucial for eliminating drugs and toxins in the kidneys and liver. Molecular characterization reveals their role in detoxification and reabsorption, impacting drug interactions and toxicity.

Area of Science:

  • Pharmacology and Toxicology
  • Molecular Biology
  • Renal Physiology

Background:

  • Organic anion transport systems in the kidneys and liver eliminate diverse compounds.
  • The molecular identity of these systems, the OAT family, has recently been elucidated.
  • Six OAT members are known, playing roles in detoxification and reabsorption.

Purpose of the Study:

  • To discuss the molecular characterization of the OAT family.
  • To highlight the roles of OATs in physiological and pharmacological processes.
  • To explore the association of OATs with pharmacokinetics and toxicity.

Main Methods:

  • Review of physiological and pharmacological studies.
  • Analysis of molecular identification of OAT family members.
  • Discussion of genetic encoding by SLC22A.

Main Results:

  • Identification of six OAT family members.
  • Demonstration of OAT roles in renal, hepatic, and brain detoxification.
  • Evidence of OAT involvement in urate reabsorption.
  • Association of OATs with drug pharmacokinetics, drug-drug interactions, and toxicity of anionic substances.

Conclusions:

  • The OAT family, encoded by SLC22A, is vital for the transport of numerous endogenous and exogenous compounds.
  • Understanding OAT molecular characterization is essential for predicting drug behavior and toxicity.
  • OATs are key players in xenobiotic metabolism and maintaining physiological homeostasis.

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