ArticleMolecular vision2017
Comparison of two neurotrophic serpins reveals a small fragment with cell survival activity.
Article in Molecular vision, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
What it found
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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.
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Who cites it
12 citing papers in PubMed, 11 citations in OpenAlex.
- Complexity of PEDF multifunctional signaling in retinal development and diseases.Communications biology · 2026Article
- Prominin-1 Regulates Retinal Pigment Epithelium Homeostasis: Transcriptomic Insights into Degenerative Mechanisms.International journal of molecular sciences · 2025Article
- The Plasminogen Activation System in the Central Nervous System: Implications for Epilepsy and Neuropsychiatric Disorders.International journal of molecular sciences · 2025Review
- The Role of PEDF in the Eye, Bone, and Nervous and Immune Systems.Pharmaceutics · 2025Review
- Comparison of structures and inhibition activities of serine protease inhibitors of Trichinella spiralis and Trichinella pseudospiralis.Cell & bioscience · 2025Article
- Senescence-related genes and proteins in the development of Alzheimer's disease: evidence from transcriptomic and Mendelian randomization analysis.Frontiers in aging neuroscience · 2024Article
- Delivery Systems of Retinoprotective Proteins in the Retina.International journal of molecular sciences · 2021Review
- Transcriptomic Profiling of Human Pluripotent Stem Cell-derived Retinal Pigment Epithelium over Time.Genomics, proteomics & bioinformatics · 2021Article
- Pigment Epithelium-Derived Factor (PEDF) Receptors Are Involved in Survival of Retinal Neurons.International journal of molecular sciences · 2020Article
- Cell-based assays to identify novel retinoprotective agents.MethodsX · 2020Article
- PEDF peptides promote photoreceptor survival in rd10 retina models.Experimental eye research · 2019Article
- Signaling Mechanisms Involved in PEDF-Mediated Retinoprotection.Advances in experimental medicine and biology · 2019Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
Abstract
purposeProtease nexin-1 (PN-1), a serpin encoded by the
methodsSequence comparisons were performed using computer bioinformatics programs. Mouse and bovine eyes, human retina tissue, and ARPE-19 cells were used to prepare RNA and protein samples. Interphotoreceptor matrix lavage was obtained from bovine eyes. Gene expression and protein levels were evaluated with reverse-transcription PCR (RT-PCR) and western blotting, respectively. Recombinant human PN-1, a version of PN-1 referred to as PN-1[R346A] lacking serine protease inhibitory activity, and PEDF proteins were used, as well as synthetic peptides designed from PEDF and PN-1 sequences. Survival activity in serum-starved, rat-derived retinal precursor (R28) cells was assessed with terminal deoxynucleotidyl transferase (TdT) dUTP nick-end labeling (TUNEL) cell death assays.
resultsPN-1 is analogous in primary and tertiary structure to PEDF. A region in PN-1 shares homology with the neurotrophic active region of PEDF, a 17-residue region within alpha helix C. The native human retina, ARPE-19 cells, and murine RPE and retina expressed the gene for PN-1 (
conclusionsPN-1 and PEDF share structural and functional features, and expression patterns in the retina. These serpins' mechanisms of action as cell survival factors are independent of serine protease inhibition. We have identified PN-1 as a novel factor for the retina that may play a neuroprotective role in vivo, and small peptides as relevant candidates for preventing retinal degeneration.
Indexed as
Identifiers
28706437PMC5501690W2724148826What OpenQuestion holds
Registered trials
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.