Mamma Mia, P-glycoprotein binds again.

Mamma Mia, P-glycoprotein binds again.
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DOI:
10.1002/1873-3468.13951
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发表时间:
2020-12
期刊:
影响因子:
3.5
通讯作者:
Hartz AMS
Hartz AMS
中科院分区:
生物学3区
文献类型:
--
作者:
Callaghan R;Gelissen IC;George AM;Hartz AMS

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The levels of amyloid peptides in the brain are regulated by a clearance pathway from neurons to the blood–brain barrier. The first step is thought to involve diffusion from the plasma membrane to the interstitium. However, amyloid peptides are hydrophobic and avidly intercalate within membranes. The ABC transporter P-glycoprotein is implicated in the clearance of amyloid peptides across the blood–brain, but its role at neurons is undetermined. We here propose that P-glycoprotein mediates ’exit’ of amyloid peptides from neurons. Indeed, amyloid peptides have physicochemical similarities to substrates of P-glycoprotein, but their larger size represents a conundrum. This review probes the plausibility of a mechanism for amyloid peptide transport by P-glycoprotein exploiting evolving biochemical and structural models.
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