Evidence map›Paper›PMID 18391222›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2008

Presecretory oxidation, aggregation, and autophagic destruction of apoprotein-B: a pathway for late-stage quality control.

Meihui Pan, Vatsala Maitin, Sajesh Parathath, Ursula Andreo, Sharron X Lin, Carly St Germain, Zemin Yao, Frederick R Maxfield, Kevin Jon Williams, Edward A Fisher

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

62 citing papers in PubMed.

  1. Article
  2. Molecular Regulation and Therapeutic Targeting of VLDL Production in Cardiometabolic Disease.Cellular and molecular gastroenterology and hepatology · 2025
    Review
  3. Review
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Review
  12. Article
  13. Endoplasmic reticulum quality control in lipoprotein metabolism.Molecular and cellular endocrinology · 2019
    Review
  14. Apolipoproteins and cancer.Cancer medicine · 2019
    Review
  15. Article
  16. Role of Podocyte Injury in Glomerulosclerosis.Advances in experimental medicine and biology · 2019
    Review
  17. Cholesterol and bile acid-mediated regulation of autophagy in fatty liver diseases and atherosclerosis.Biochimica et biophysica acta. Molecular and cell biology of lipids · 2018
    Review
  18. Can modulators of apolipoproteinB biogenesis serve as an alternate target for cholesterol-lowering drugs?Biochimica et biophysica acta. Molecular and cell biology of lipids · 2018
    Review
  19. Review
  20. Article

2 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Meihui PanDepartments of Medicine, Leon H. Charney Division of Cardiology, and Cell Biology and the Marc and Ruti Bell Vascular Biology and Disease Program, New York University School of Medicine, New York, NY 10016, USA.
Vatsala Maitin
Sajesh Parathath
Ursula Andreo
Sharron X Lin
Carly St Germain
Zemin Yao
Frederick R Maxfield
Kevin Jon Williams
Edward A Fisher

Funding

Vascular Effects of Heparan Sulfate ProteoglycansP50HL056984 · NHLBI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI TALL, ALAN RICHARD · 1997 to 2006
$13.1M
RECEPTOR-MEDIATED ENDOCYTOSIS: MECHANISM AND FUNCTIONR37DK027083 · NIDDK · WEILL MEDICAL COLL OF CORNELL UNIV · PI MAXFIELD, FREDERICK R. · 1993 to 2014
$6.5M
MOLECULAR REGULATION OF APOPROTEIN B DEGRADATIONR01HL058541 · NHLBI · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI FISHER, EDWARD A · 1997 to 2014
$4.4M
RECEPTOR-MEDIATED ENDOCYTOSIS: MECHANISM AND FUNCTIONR01DK027083 · NIDDK · WEILL MEDICAL COLLEGE OF CORNELL UNIV · PI MAXFIELD, FREDERICK R. · 1986 to 2004
$2.0M
Endocytic Trafficking Motifs in Syndecan &LDL receptorR01HL073898 · NHLBI · THOMAS JEFFERSON UNIVERSITY · PI WILLIAMS, KEVIN JON · 2005 to 2008
$1.2M
NHLBI NIH HHS HL56984NHLBI NIH HHS HL58541NHLBI NIH HHS HL73898NHLBI NIH HHS P50 HL056984NHLBI NIH HHS R01 HL058541NHLBI NIH HHS R01 HL073898NIDDK NIH HHS DK27083NIDDK NIH HHS R01 DK027083NIDDK NIH HHS R37 DK027083
6 · The paper itself

Abstract

Hepatic secretion of apolipoprotein-B (apoB), the major protein of atherogenic lipoproteins, is regulated through posttranslational degradation. We reported a degradation pathway, post-ER pre secretory proteolysis (PERPP), that is increased by reactive oxygen species (ROS) generated within hepatocytes from dietary polyunsaturated fatty acids (PUFA). We now report the molecular processes by which PUFA-derived ROS regulate PERPP of apoB. ApoB exits the ER; undergoes limited oxidant-dependent aggregation; and then, upon exit from the Golgi, becomes extensively oxidized and converted into large aggregates. The aggregates slowly degrade by an autophagic process. None of the oxidized, aggregated material leaves cells, thereby preventing export of apoB-lipoproteins containing potentially toxic lipid peroxides. In summary, apoB secretory control via PERPP/autophagosomes is likely a key component of normal and pathologic regulation of plasma apoB levels, as well as a means for remarkably late-stage quality control of a secreted protein.

Indexed as

AutophagyAnimalsApolipoproteins BCells, CulturedFatty Acids, UnsaturatedHepatocytesPeptide HydrolasesPhagosomesProtein TransportRatsReactive Oxygen SpeciesApolipoproteins BFatty Acids, UnsaturatedPeptide HydrolasesReactive Oxygen Species

Identifiers

PMID18391222
PMCPMC2311371

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.