Evidence map›Paper›PMID 26383048›Full record

ArticleCytoskeleton (Hoboken, N.J.)2015

Loss of retinitis pigmentosa 2 (RP2) protein affects cone photoreceptor sensory cilium elongation in mice.

Linjing Li, Kollu Nageswara Rao, Yun Zheng-Le, Toby W Hurd, Concepción Lillo, Hemant Khanna

Abstract read
In one paragraph

Article in Cytoskeleton (Hoboken, N.J.), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

12 citing papers in PubMed, 16 citations in OpenAlex.

  1. Dawn and dusk peaks of outer segment phagocytosis, and visual cycle function require Rab28.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2022
    Article
  2. Article
  3. Article
  4. Review
  5. ALPK1 missense pathogenic variant in five families leads to ROSAH syndrome, an ocular multisystem autosomal dominant disorder.Genetics in medicine : official journal of the American College of Medical Genetics · 2019
    Article
  6. Article
  7. Review
  8. The Role of the Microglial Cx3cr1 Pathway in the Postnatal Maturation of Retinal Photoreceptors.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    Article
  9. Article
  10. Article
  11. Article
  12. 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 4 institutions in 3 countries.

Linjing LiDepartment of Ophthalmology, University of Massachusetts Medical School, Worcester, Massachusetts.
Kollu Nageswara RaoDepartment of Ophthalmology, University of Massachusetts Medical School, Worcester, Massachusetts.
Yun Zheng-LeDepartment of Medicine, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma.
Toby W HurdMRC Human Genetics Unit, Edinburgh, UK.
Concepción LilloInstitute of Neurosciences of Castilla Y León-INCyL, Institute of Biomedical Research of Salamanca-IBSAL, Cell Biology and Pathology, University of Salamanca, Salamanca, Spain.
Hemant KhannaDepartment of Ophthalmology, University of Massachusetts Medical School, Worcester, Massachusetts.
University of Massachusetts Chan Medical School · USInstituto de Investigación Biomédica de Salamanca · ESMRC Institute of Genetics and Molecular Medicine · GBUniversity of Oklahoma Health Sciences Center · US

Funding

Function of Ciliary Disease Protein Retinitis Pigmentosa GTPase Regulator (RPGR)R01EY022372 · NEI · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI PAZOUR, GREGORY J · 2012 to 2020
$3.7M
Transmission Electron Microscope for Core EM FacilityS10RR027897 · NCRR · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI CRAIG, ROGER W · 2009 to 2009
$500k
NCRR NIH HHS S10 RR027897NEI NIH HHS EY022372NEI NIH HHS R01 EY022372
6 · The paper itself

Abstract

Degeneration of photoreceptors (rods and cones) results in blindness. As we rely almost entirely on our daytime vision mediated by the cones, it is the loss of these photoreceptors that results in legal blindness and poor quality of life. Cone dysfunction is usually observed due to two mechanisms: noncell-autonomous due to the secondary effect of rod death if the causative gene is specifically expressed in rods and cell autonomous, if the mutation is in a cone-specific gene. However, it is difficult to dissect cone autonomous effect of mutations in the genes that are expressed in both rods and cones. Here we report a property of murine cone photoreceptors, which is a cone-autonomous effect of the genetic perturbation of the retinitis pigmentosa 2 (Rp2) gene mutated in human X-linked RP. Constitutive loss of Rp2 results in abnormal extension of the cone outer segment (COS). This effect is phenocopied when the Rp2 gene is ablated specifically in cones but not when ablated in rods. Furthermore, the elongated COS exhibits abnormal ultrastructure with disorganized lamellae. Additionally, elongation of both the outer segment membrane and the microtubule cytoskeleton was observed in the absence of RP2. Taken together, our studies identify a cone morphological defect in retinal degeneration due to ablation of RP2 and will assist in understanding cone-autonomous responses during disease and develop targeted therapies.

Indexed as

AnimalsCiliaCytoskeletonElectroretinographyGenotypeGTP-Binding ProteinsHumansImmunohistochemistryMaleMembrane ProteinsMiceMice, KnockoutMicroscopy, Electron, TransmissionMicrotubulesMutationPromoter Regions, GeneticGTP-Binding ProteinsMembrane ProteinsPyrophosphatasesRP2 protein, mouseciliamouse modelphotoreceptorretina

Identifiers

PMID26383048
PMCPMC4715527
OpenAlexW1907744285

What OpenQuestion holds

Textmetadata
LicenceTDM
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.