Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 493

The DOI matches its Crossref record; 27 of the 27 references it cites were found in a registry or an index.

Astroglial and fibroblast growth factors have neurotrophic functions for cultured peripheral and central nervous system neurons.

Open access
Unsicker, K, Reichert-Preibsch, H, Schmidt, R, Pettmann, B, Labourdette, G, Sensenbrenner, M·1987·Proceedings of the National Academy of Sciences

Abstract

Embryonic and neonatal neurons require specific trophic supplements for their survival and the induction of transmitter-synthesizing enzymes in vivo and in vitro. Acidic and basic fibroblast growth factor (aFGF, bFGF) and the closely related astroglial growth factors AGF-1 and AGF-2 were studied for putative neurotrophic functions using dissociated, highly neuron-enriched cultures from chick and rat peripheral ganglia and central nervous system tissues. Embryonic chick ciliary ganglion neurons were the only peripheral neurons that responded to bFGF and AGF-2 by enhanced survival equivalent to that obtained with ciliary neurotrophic factor. Half-maximal effects were achieved with bFGF at 360 pg/ml or AGF-2 at 3 ng/ml. Small effects seen with aFGF could be potentiated by adding heparin at 1 microgram/ml. bFGF, but not ciliary neurotropic factor, also promoted neuron survival after the factor was bound to polyornithine and laminin. Both AGF-2 and ciliary neurotropic factor induced choline acetyltransferase activity during 48 hr. AGFs and FGFs also enhanced the long-term survival of embryonic chick spinal cord neurons, including motoneurons that had been retrogradely labeled with rhodamine isothiocyanate. These results demonstrate the potency of a class of mitogenic growth factors as neurotrophic agents for embryonic ciliary ganglion and spinal cord neurons--adding to the emerging evidence that mitogenic and neuronal growth factors are not strictly separate entities.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1073/pnas.84.15.5459

Cites

27 of 27 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 27 references

Cited by

See all 493

Metadata

Authors
Unsicker, K., Reichert-Preibsch, H., Schmidt, R., Pettmann, B., Labourdette, G., & Sensenbrenner, M.
Venue
Proceedings of the National Academy of Sciences
Published
1987-08
Volume
84
Issue
15
Pages
5459-5463
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1966182982
Cited by
493
References
27
FWCI
16.22
Type
journal article
Language
en
Open access
green

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Astroglial and fibroblast growth factors have neurotrophic functions for cultured peripheral and central nervous system neurons. https://app.cochat.ai/papers/10.1073/pnas.84.15.5459
The paper
Unsicker, K., Reichert-Preibsch, H., Schmidt, R., Pettmann, B., Labourdette, G., & Sensenbrenner, M. (1987). Astroglial and fibroblast growth factors have neurotrophic functions for cultured peripheral and central nervous system neurons. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.84.15.5459

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.