Evidence map›Paper›PMID 22532442›Full record

ArticleFASEB journal : official publication of the Federation of American Societies for Experimental Biology2012

Signaling through the neuropeptide GPCR PAC₁ induces neuritogenesis via a single linear cAMP- and ERK-dependent pathway using a novel cAMP sensor.

Andrew C Emery, Lee E Eiden

Open access · greenAbstract read
In one paragraph

Article in FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

48 citing papers in PubMed, 70 citations in OpenAlex.

  1. Article
  2. Article
  3. PACAP versus CGRP in migraine: From mouse models to clinical translation.Cephalalgia : an international journal of headache · 2025
    Review
  4. Review
  5. Article
  6. Review
  7. Article
  8. Molecular Mechanisms of Migraine: Nitric Oxide Synthase and Neuropeptides.International journal of molecular sciences · 2023
    Review
  9. Review
  10. Article
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  14. Article
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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

2 authors at 1 institution in 1 country.

Andrew C EmerySection on Molecular Neuroscience, Laboratory of Cellular and Molecular Regulation, National Institute of Mental Health, Bethesda, Maryland 20892-4090, USA.
Lee E Eiden
National Institute of Mental Health · US

Funding

Chemical Coding Of NeurotransmissionZIAMH002386 · NIMH · NATIONAL INSTITUTE OF MENTAL HEALTH · PI EIDEN, LEE E. · 2009 to 2025
$25.6M
NEUROSECRETORY VESICLED PROTEINS AND CHEMICAL CODING OF NEUROTRANSMISSIONZ01MH002386 · NIMH · NATIONAL INSTITUTE OF MENTAL HEALTH · PI EIDEN, LEE E. · 1987 to 2008
$3.6M
Intramural NIH HHS Z01 MH002386NIMH NIH HHS 1-Z01-MH002386
6 · The paper itself

Abstract

Both cAMP and ERK are necessary for neuroendocrine cell neuritogenesis, and pituitary adenylate cyclase-activating polypeptide (PACAP) activates each. It is important to know whether cAMP and ERK are arranged in a novel, linear pathway or in two parallel pathways using known signaling mechanisms. Native cellular responses [cAMP elevation, ERK phosphorylation, cAMP responsive element binding (CREB) phosphorylation, and neuritogenesis] and promoter-reporter gene activation after treatment with forskolin, cAMP analogs, and PACAP were measured in Neuroscreen-1 (NS-1) cells, a PC12 variant enabling simultaneous morphological, molecular biological, and biochemical analysis. Forskolin (25 μM) and cAMP analogs (8-bromo-cAMP, dibutyryl-cAMP, and 8-chlorophenylthio-cAMP) stimulated ERK phosphorylation and neuritogenesis in NS-1 cells. Both ERK phosphorylation and neuritogenesis were MEK dependent (blocked by 10 μM U0126) and PKA independent (insensitive to 30 μM H-89 or 100 nM myristoylated protein kinase A inhibitor). CREB phosphorylation induced by PACAP was blocked by H-89. The exchange protein activated by cAMP (Epac)-selective 8-(4-chlorophenylthio)-2'-O-Me-cAMP (100-500 μM) activated Rap1 without affecting the other cAMP-dependent processes. Thus, PACAP-38 potently stimulated two distinct and independent cAMP pathways leading to CREB or ERK activation in NS-1 cells. Drug concentrations for appropriate effect were derived from control data for all compounds. In summary, a novel PKA- and Epac-independent signaling pathway: PACAP → adenylate cyclase → cAMP → ERK → neuritogenesis has been identified.

Indexed as

Adenylyl CyclasesAnimalsCell Line, TumorColforsinCyclic AMPCyclic AMP-Dependent Protein KinasesExtracellular Signal-Regulated MAP KinasesMiceNeuritesPC12 CellsPituitary Adenylate Cyclase-Activating PolypeptideRatsSignal TransductionAdenylyl CyclasesColforsinCyclic AMPCyclic AMP-Dependent Protein KinasesExtracellular Signal-Regulated MAP KinasesPituitary Adenylate Cyclase-Activating Polypeptide

Identifiers

PMID22532442
PMCPMC3405272
OpenAlexW2068344640

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.