Transportomics: screening for substrates of ABC transporters in body fluids using vesicular transport assays

Autor: Krumpochova, P, Sapthu, S., Brouwers, J.F.H.M., de Haas, M., de Vos, R., Borst, P., van de Wetering, K., Biology of Reproductive Cells, Membrane Enzymology, Sub Membrane Enzymology begr. 01-06-12, Dep Biochemie en Celbiologie
Přispěvatelé: Biology of Reproductive Cells, Membrane Enzymology, Sub Membrane Enzymology begr. 01-06-12, Dep Biochemie en Celbiologie, BioAnalytical Chemistry, AIMMS, Cancer Center Amsterdam, Medical Biochemistry
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: FASEB Journal, 26, 738. FASEB
Krumpochova, P, Sapthu, S, Brouwers, J F, de Haas, M, de Vos, R, Borst, P & van de Wetering, K 2012, ' Transportomics: screening for substrates of ABC transporters in body fluids using vesicular transport assays ', FASEB Journal, no. 26, pp. 738-747 . https://doi.org/10.1096/fj.11-195743
FASEB Journal, 26(2), 738-747
FASEB Journal, 738-747. FASEB
ISSUE=26;STARTPAGE=738;ENDPAGE=747;ISSN=0892-6638;TITLE=FASEB Journal
FASEB journal, 26(2), 738-747. FASEB
FASEB Journal 26 (2012) 2
ISSN: 0892-6638
DOI: 10.1096/fj.11-195743
Popis: The ATP-binding cassette (ABC) genes encode the largest family of transmembrane proteins. ABC transporters translocate a wide variety of substrates across membranes, but their physiological function is often incompletely understood. We describe a new method to study the substrate spectrum of ABC transporters: We incubate extracts of mouse urine with membrane vesicles prepared from Spodoptera frugiperda Sf9 insect cells overproducing an ABC transporter and determine the compounds transported into the vesicles by LC/MS-based metabolomics. We illustrate the power of this simple “transportomics” approach using ABCC2, a protein present at sites of uptake and elimination. We identified many new substrates of ABCC2 in urine. These included glucuronides of plant-derived xenobiotics, a class of compounds to which humans are exposed on a daily basis. Moreover, we show that the excretion of these compounds in vivo depends on ABCC2: compared to wild-type mice, the urinary excretion of several glucuronides was increased up to 20-fold in Abcc2-/- mice. Transportomics has broad applicability, as it is not restricted to urine and can be applied to other ATP-dependent transport proteins as well.—Krumpochova, P., Sapthu, S., Brouwers, J. F., de Haas, M., de Vos, R., Borst, P., van de Wetering, K. Transportomics: screening for substrates of ABC transporters in body fluids using vesicular transport assays
Databáze: OpenAIRE