Evidence map›Paper›PMID 29305319›Full record

ArticleThe American journal of pathology2018

Role of A-Kinase Anchoring Protein Phosphorylation in Alcohol-Induced Liver Injury and Hepatic Stellate Cell Activation.

Komal Ramani, Maria Lauda Tomasi, Joshua Berlind, Nirmala Mavila, Zhaoli Sun

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of pathology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.3field-weighted citation impact, top 39% 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

6 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. SUMOylation and phosphorylation cross-talk in hepatocellular carcinoma.Translational gastroenterology and hepatology · 2018
    Review
  6. 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

5 authors at 2 institutions in 1 country.

Komal RamaniDepartment of Medicine, Cedars-Sinai Medical Center, Los Angeles, California. Electronic address: komal.ramani@cshs.org.
Maria Lauda TomasiDepartment of Medicine, Cedars-Sinai Medical Center, Los Angeles, California.
Joshua BerlindDepartment of Medicine, Cedars-Sinai Medical Center, Los Angeles, California.
Nirmala MavilaDepartment of Medicine, Cedars-Sinai Medical Center, Los Angeles, California.
Zhaoli SunTransplant Biology Research Center, Johns Hopkins University School of Medicine, Baltimore, Maryland.
Cedars-Sinai Medical Center · USJohns Hopkins University · US

Funding

Clinical Resources for Alcoholic Hepatitis InvestigationsR24AA025017 · NIAAA · JOHNS HOPKINS UNIVERSITY · PI ZHAOLI SUN · 2016 to 2026
$6.6M
Role of Sumoylation in Alcoholic Liver DiseaseK01AA022372 · NIAAA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI TOMASI, MARIA LAUDA · 2013 to 2017
$803k
Methionine Adenosyltransferase as a Therapeutic Target for Liver FibrosisR00AA017774 · NIAAA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI RAMANI, KOMAL · 2011 to 2013
$701k
NIAAA NIH HHS K01 AA022372NIAAA NIH HHS R00 AA017774NIAAA NIH HHS R24 AA025017
6 · The paper itself

Abstract

Alcoholic liver injury is associated with hepatic stellate cell (HSC) activation. A-kinase anchoring protein 12 (AKAP12) scaffolds protein kinase C and cyclin-D1, which is regulated by its phosphorylation, and spatiotemporally controls cell proliferation, invasiveness, and chemotaxis. HSC activation induces AKAP12 expression, but the role of AKAP12's scaffolding activity in liver function is unknown. Because AKAP12 phosphorylation is enhanced in ethanol-treated HSCs, we examined AKAP12's scaffolding functions in alcohol-mediated HSC activation and liver injury. AKAP12 expression, interaction, and phosphorylation were assayed in in vitro and in vivo ethanol models and human subjects by real-time PCR, coimmunoprecipitation, immunoblotting, and phosphorylated proteomics/Phos-tag. Ethanol induced AKAP12 phosphorylation in the liver and in primary HSCs, but not in hepatocytes. AKAP12's scaffolding activity for protein kinase C/cyclin-D1 decreased in ethanol-treated HSCs but not hepatocytes. AKAP12 negatively regulated HSC activation, which was reversed by ethanol-mediated AKAP12 phosphorylation. AKAP12 interacted with heat shock protein 47 (HSP47), which chaperones collagen and induces its secretion. Ethanol inhibited AKAP12-HSP47 and induced HSP47-collagen interaction. Ethanol-induced phosphorylated AKAP12 was unable to bind to HSP47 compared with its unphosphorylated counterpart, thereby proving that ethanol-mediated phosphorylation of AKAP12 inhibited the HSP47-AKAP12 scaffold. Silencing AKAP12 facilitated the chaperoning of collagen by HSP47. Hence, AKAP12 scaffolds HSP47 and regulates collagen-HSP47 interaction. Ethanol quenches AKAP12's scaffolding activity through phosphorylation and facilitates HSC activation.

Indexed as

A Kinase Anchor ProteinsAnimalsCell Cycle ProteinsCollagenCyclin D1EthanolHepatic Stellate CellsHepatocytesHumansLiverLiver Diseases, AlcoholicMicePhosphorylationProtein Kinase CAKAP12 protein, humanA Kinase Anchor ProteinsCell Cycle ProteinsCollagenCyclin D1EthanolProtein Kinase C

Identifiers

PMID29305319
PMCPMC5842034
OpenAlexW2782431297

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.