Langmann, Thomas and Klucken, Jochen and Reil, Markus and Liebisch, Gerhard and Luciani, Marie-Francoise and Chimini, Giovanna and Kaminski, Wolfgang E. and Schmitz, Gerd (1999) Molecular cloning of the human ATP-binding cassette transporter 1 (hABC1): Evidence for sterol-dependent regulation in macrophages. BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 257 (1). pp. 29-33. ISSN 0006-291X,
Full text not available from this repository. (Request a copy)Abstract
We have cloned the full-length cDNA for the human ATP binding cassette transporter 1 (hABC1). The 6603-bp open reading frame encodes a polypeptide of 2201 amino acids resulting in a deduced molecular weight of 220 kDa. The hABC1 cDNA is highly homologous (62%) to the human rim ABC transporter (ABCR). hABC1 is expressed in a variety of human tissues with highest expression levels found in placenta, liver, lung, adrenal glands, and fetal tissues. We demonstrate that the hABC1 expression is induced during differentiation of human monocytes into macrophages in vitro. In macrophages, both the hABC1 mRNA and protein expression are upregulated in the presence of acetylated low-density lipoprotein (AcLDL). The AcLDL-induced increase in hABC1 expression is reversed by cholesterol depletion mediated by the addition of high-density lipoprotein (HDL,). Our data, demonstrating sterol-dependent regulation of hABC1 in human monocytes/macrophages, suggest a novel role for this transporter molecule in membrane lipid transport. (C) 1999 Academic Press.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | P-GLYCOPROTEIN; HUMAN CARBOXYLESTERASE; ABC TRANSPORTERS; PHOSPHATIDYLCHOLINE; TRANSLOCATION; FIBROBLASTS; EXPRESSION; MEMBRANES; PROMOTER; GENES; |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Klinische Chemie und Laboratoriumsmedizin |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Nov 2022 10:39 |
| Last Modified: | 08 Nov 2022 10:39 |
| URI: | https://pred.uni-regensburg.de/id/eprint/48337 |
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