Evidence map›Paper›PMID 11742530›Full record

ArticleThe Biochemical journal2002

Processing of proSAAS in neuroendocrine cell lines.

Nino Mzhavia, Yimei Qian, Yun Feng, Fa-Yun Che, Lakshmi A Devi, Lloyd D Fricker

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The Biochemical journal, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.4field-weighted citation impact, top 20% of its field
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

22 citing papers in PubMed, 44 citations in OpenAlex.

  1. Review
  2. Article
  3. Molecular pharmacology · 2022
    Article
  4. Article
  5. Secreted Chaperones in Neurodegeneration.Frontiers in aging neuroscience · 2020
    Review
  6. Review
  7. Review
  8. Review
  9. The neural chaperone proSAAS blocks α-synuclein fibrillation and neurotoxicity.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  10. Chaperones in Neurodegeneration.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2015
    Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
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

6 authors at 2 institutions in 1 country.

Nino MzhaviaDepartment of Pharmacology, New York University School of Medicine, New York, NY 10016, U.S.A.
Yimei Qian
Yun Feng
Fa-Yun Che
Lakshmi A Devi
Lloyd D Fricker
Albert Einstein College of Medicine · USNew York University · US

Funding

WORD PROCESSORP30CA013330 · NCI · YESHIVA UNIVERSITY · PI THOMAS E ROHAN · 1985 to 2026
$111.2M
Stable Isotope and Metabolomics CoreP60DK020541 · NIDDK · YESHIVA UNIVERSITY · PI FLEISCHER, NORMAN S. · 1986 to 2014
$29.8M
Translational Research CoreP30DK020541 · NIDDK · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI STREAMSON C CHUA · 2015 to 2026
$27.7M
Enzymes Involved in Neuropeptide Biosynthesis, Processing and RegulationR01NS026880 · NINDS · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI DEVI, LAKSHMI A · 1994 to 2019
$6.5M
REGULATION OF ENKEPHALIN CONVERTASE--CARBOXYPEPTIDASE ER01DA004494 · NIDA · YESHIVA UNIVERSITY · PI FRICKER, LLOYD D · 1987 to 2015
$5.9M
POST-TRANSLATIONAL REGULATION OF OPIOID RECEPTORSK02DA000458 · NIDA · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI DEVI, LAKSHMI A · 2000 to 2004
$539k
REGULATION OF NEUROPEPTIDE-PROCESSING ENZYMESK02DA000194 · NIDA · YESHIVA UNIVERSITY · PI FRICKER, LLOYD D · 1993 to 2002
$366k
NCI NIH HHS CA 13330NIDA NIH HHS K02-DA 00194NIDA NIH HHS K02-DA 00458NIDA NIH HHS R01-DA 04494NIDDK NIH HHS DK 20541NINDS NIH HHS R01-NS 26880
6 · The paper itself

Abstract

ProSAAS, a recently discovered granin-like protein, potently inhibits prohormone convertase (PC)1, and might also perform additional functions. In the present study, the processing of proSAAS was compared in two neuroendocrine cell lines overexpressing this protein: the AtT-20 mouse pituitary corticotrophic line and the PC12 rat adrenal phaeochromocytoma line. The processing of proSAAS was examined by pulse-chase analysis using [(3)H]leucine, by MS, and by chromatography and radioimmunoassay. Various smaller forms of proSAAS were detected, including peptides designated as little SAAS, PEN and big LEN. Because the PC-12 cells used in the present study do not express either PC1 or PC2, the finding that these cells efficiently cleave proSAAS indicates that these cleavages do not require either enzyme. Two of the peptides identified in AtT-20 media represent novel C-terminally truncated forms of PEN. In both cell lines, the secretion of the small proSAAS-derived peptides is stimulated by secretagogues. However, long-term treatment of wild-type AtT-20 cells with two different secretagogues (8-bromo-cAMP and a phorbol ester) does not affect levels of proSAAS mRNA; this treatment significantly increases PC1 mRNA by approx. 60-80%. The lack of co-regulation of proSAAS and PC1 mRNA implies that enzyme activity can be induced without an accompanying increase in the inhibitor. In addition, the finding that the peptides are secreted via the regulated pathway is consistent with the proposal that they may function as neuropeptides.

Indexed as

Proprotein Convertase 1AnimalsAspartic Acid EndopeptidasesCell LineChromatography, High Pressure LiquidGene Expression RegulationMiceNeuropeptidesNeurosecretory SystemsPC12 CellsProprotein ConvertasesProtein PrecursorsProtein Processing, Post-TranslationalRatsRecombinant ProteinsRNA, MessengerAspartic Acid EndopeptidasesNeuropeptidesPCSK1N protein, humanPcsk1 protein, mouseProprotein Convertase 1Proprotein ConvertasesProtein PrecursorsRecombinant ProteinsRNA, Messenger

Identifiers

PMID11742530
PMCPMC1222280
OpenAlexW2081180099

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.