Evidence map›Paper›PMID 41805095›Full record

ArticleInvestigative ophthalmology & visual science2026

Rod-Cone Dystrophy Related WDR34 Is Essential for Ciliary Integrity and Survival of Mammalian Photoreceptor Cells.

Rong Zou, Jinrui Cai, Lin Fan, Luning Liu, Can Chen, Guangyi Chen, Xian Yang, Kuanxiang Sun, Xianjun Zhu

Abstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

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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

2 citing papers in PubMed.

  1. 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

9 authors.

Rong ZouThe Sichuan Provincial Key Laboratory for Genetic Diseases, Center for Medical Genetics, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China.
Jinrui CaiThe Sichuan Provincial Key Laboratory for Genetic Diseases, Center for Medical Genetics, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China.
Lin FanThe Sichuan Provincial Key Laboratory for Genetic Diseases, Center for Medical Genetics, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China.
Luning LiuDepartment of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.
Can ChenThe Sichuan Provincial Key Laboratory for Genetic Diseases, Center for Medical Genetics, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China.
Guangyi ChenThe Sichuan Provincial Key Laboratory for Genetic Diseases, Center for Medical Genetics, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China.
Xian YangDepartment of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.
Kuanxiang SunThe Sichuan Provincial Key Laboratory for Genetic Diseases, Center for Medical Genetics, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China.
Xianjun ZhuThe Sichuan Provincial Key Laboratory for Genetic Diseases, Center for Medical Genetics, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: The photoreceptor outer segment is a highly specialized ciliary structure essential for phototransduction, rendering photoreceptors especially vulnerable to ciliary dysfunction. WDR34, a key component of the retrograde intraflagellar transport machinery, has been implicated in rod-cone dystrophy. However, the pathogenic mechanisms linking WDR34 deficiency to photoreceptor degeneration remain elusive. In this study we aim to investigate the in vivo function of Wdr34 in the photoreceptor cells using conditional knockout allele of Wdr34. Methods: We generated retina-specific Wdr34 knockout mice using rod-specific and cone-specific drivers to investigate the in vivo roles of WDR34 in photoreceptor maintenance. Results: Wdr34 deficiency in rod photoreceptors resulted in progressive rod cell degeneration accompanied by a marked decline in scotopic electroretinography (ERG) responses. Similarly, cone-specific Wdr34 ablation led to impaired photopic ERG responses and subsequent cone photoreceptor death. Transcriptomic profiling of Wdr34-deficient retinas revealed broad differential gene expression changes, with significant enrichment in axonemal integrity and microtubule-based transport. Notably, subretinal delivery of an adeno-associated virus vector expressing WDR34 significantly preserved rod photoreceptor structure and function, underscoring the therapeutic potential of WDR34 gene supplementation. Conclusions: Our findings establish WDR34 as a critical factor for photoreceptor survival and function, emphasizing its role in the pathogenesis of WDR34-associated retinal degeneration. Moreover, this study demonstrates that WDR34-targeted gene therapy can effectively delay photoreceptor loss, highlighting a promising treatment strategy for patients with WDR34-related retinal disease.

Indexed as

CiliaCone-Rod DystrophiesRetinal Cone Photoreceptor CellsRetinal Rod Photoreceptor CellsAnimalsCell SurvivalDisease Models, AnimalElectroretinographyMiceMice, Inbred C57BLMice, Knockout

Identifiers

PMID41805095
PMCPMC12810420

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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.