PMID- 30441770 OWN - NLM STAT- MEDLINE DCOM- 20190211 LR - 20220716 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 19 IP - 11 DP - 2018 Nov 14 TI - Transport of Apolipoprotein B-Containing Lipoproteins through Endothelial Cells Is Associated with Apolipoprotein E-Carrying HDL-Like Particle Formation. LID - 10.3390/ijms19113593 [doi] LID - 3593 AB - Passage of apolipoprotein B-containing lipoproteins (apoB-LPs), i.e., triglyceride-rich lipoproteins (TRLs), intermediate-density lipoproteins (IDLs), and low-density lipoproteins (LDLs), through the endothelial monolayer occurs in normal and atherosclerotic arteries. Among these lipoproteins, TRLs and IDLs are apoE-rich apoB-LPs (E/B-LPs). Recycling of TRL-associated apoE has been shown to form apoE-carrying high-density lipoprotein (HDL)-like (HDL(E)) particles in many types of cells. The current report studied the formation of HDL(E) particles by transcytosis of apoB-LPs through mouse aortic endothelial cells (MAECs). Our data indicated that passage of radiolabeled apoB-LPs, rich or poor in apoE, through the MAEC monolayer is inhibited by filipin and unlabeled competitor lipoproteins, suggesting that MAECs transport apoB-LPs via a caveolae-mediated pathway. The cholesterol and apoE in the cell-untreated E/B-LPs, TRLs, IDLs, and LDLs distributed primarily in the low-density (LD) fractions (d 1.063) fractions. In contrast, apoB was detectable only in the LD fractions before or after apoB-LPs were incubated with the MAEC monolayer, suggesting that apoB-LPs pass through the MAEC monolayer in the forms of apoB-containing LD particles and apoE-containing HD particles. FAU - Yang, Hong AU - Yang H AD - Department of Microbiology, Immunology and Physiology, Meharry Medical College, Nashville, TN 37208, USA. hyang@mmc.edu. FAU - Zhang, Ningya AU - Zhang N AD - Department of Microbiology, Immunology and Physiology, Meharry Medical College, Nashville, TN 37208, USA. nzhang@mmc.edu. FAU - Okoro, Emmanuel U AU - Okoro EU AD - Department of Microbiology, Immunology and Physiology, Meharry Medical College, Nashville, TN 37208, USA. eokoro@mmc.edu. FAU - Guo, Zhongmao AU - Guo Z AD - Department of Microbiology, Immunology and Physiology, Meharry Medical College, Nashville, TN 37208, USA. zguo@mmc.edu. LA - eng GR - SC1 HL101431/HL/NHLBI NIH HHS/United States GR - SC1HL101431/NH/NIH HHS/United States PT - Journal Article DEP - 20181114 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 0 (Apolipoproteins B) RN - 0 (Apolipoproteins E) RN - 0 (Lipoproteins, HDL) RN - 0 (Lipoproteins, LDL) SB - IM MH - Animals MH - Apolipoproteins B/*metabolism MH - Apolipoproteins E/*metabolism MH - Cells, Cultured MH - Endothelial Cells/*metabolism MH - Endothelium, Vascular/cytology/*metabolism MH - Lipoproteins, HDL/metabolism MH - Lipoproteins, LDL/metabolism MH - Mice MH - *Transcytosis PMC - PMC6274886 OTO - NOTNLM OT - apolipoprotein B-containing lipoprotein OT - apolipoprotein E OT - high-density lipoprotein formation OT - mouse aortic endothelial cells OT - transendothelial transport COIS- The authors declare no conflicts of interest. EDAT- 2018/11/18 06:00 MHDA- 2019/02/12 06:00 PMCR- 2018/11/01 CRDT- 2018/11/17 06:00 PHST- 2018/10/24 00:00 [received] PHST- 2018/11/09 00:00 [revised] PHST- 2018/11/11 00:00 [accepted] PHST- 2018/11/17 06:00 [entrez] PHST- 2018/11/18 06:00 [pubmed] PHST- 2019/02/12 06:00 [medline] PHST- 2018/11/01 00:00 [pmc-release] AID - ijms19113593 [pii] AID - ijms-19-03593 [pii] AID - 10.3390/ijms19113593 [doi] PST - epublish SO - Int J Mol Sci. 2018 Nov 14;19(11):3593. doi: 10.3390/ijms19113593.