Aberrant von Willebrand factor expression of sinusoidal endothelial cells and quiescence of hepatic stellate cells in nodular regenerative hyperplasia and obliterative portal venopathy

2020 ◽  
Vol 76 (7) ◽  
pp. 959-967
Author(s):  
Xuchen Zhang ◽  
Courtney Thomas ◽  
Thomas D Schiano ◽  
Swan N Thung ◽  
Stephen C Ward ◽  
...  
2013 ◽  
Vol 33 (6) ◽  
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Author(s):  
Anahita Mojiri ◽  
Maryam Nakhaii-Nejad ◽  
Wei-Lee Phan ◽  
Stephen Kulak ◽  
Aneta Radziwon-Balicka ◽  
...  

2019 ◽  
Vol 282 ◽  
pp. 1-10 ◽  
Author(s):  
Anahita Mojiri ◽  
Parnian Alavi ◽  
Maria Areli Lorenzana Carrillo ◽  
Maryam Nakhaei-Nejad ◽  
Consolato M. Sergi ◽  
...  

2008 ◽  
Vol 22 (S1) ◽  
Author(s):  
Alice Huertas ◽  
Steven Greenberg ◽  
Maimaiti Yiming ◽  
Jahar Bhattacharya ◽  
Sunita Bhattacharya

2010 ◽  
Vol 94 (6) ◽  
pp. 2335-2337 ◽  
Author(s):  
Umber Agarwal ◽  
Soha El Sheikh ◽  
Ashwini Kulkarni ◽  
Donna Baff ◽  
Rezan A. Kadir

1993 ◽  
Vol 70 (06) ◽  
pp. 1053-1057 ◽  
Author(s):  
Agnès M Journet ◽  
Simin Saffaripour ◽  
Denisa D Wagner

SummaryBiosynthesis of the adhesive glycoprotein von Willebrand factor (vWf) by endothelial cells results in constitutive secretion of small multimers and storage of the largest multimers in rodshaped granules called Weibel-Palade bodies. This pattern is reproduced by expression of pro-vWf in heterologous cells with a regulated pathway of secretion, that store the recombinant protein in similar elongated granules. In these cells, deletion of the vWf prosequence prevents vWf storage. The prosequence, composed of two homologous domains (D1 and D2), actively participates in vWf multimer formation as well. We expressed deletion mutants lacking either the D1 domain (D2vWf) or the D2 domain (D1vWf) in various cell lines to analyze the relative importance of each domain in vWf muitimerization and storage. Both proteins were secreted efficiently without being retained in the endoplasmic reticulum. Despite this, neither multimerized past the dimer stage and they were not stored. We conclude that several segments of the prosequence are jointly involved in vWf muitimerization and storage.


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