Evidence map›Paper›PMID 32531277›Full record

ArticleCurrent biology : CB2020

Transient Primary Cilia Mediate Robust Hedgehog Pathway-Dependent Cell Cycle Control.

Emily K Ho, Anaïs E Tsai, Tim Stearns

Open access · bronzeAbstract read
In one paragraph

Article in Current biology : CB, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

21 citing papers in PubMed, 24 citations in OpenAlex.

  1. Review
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  4. Taking Down the Primary Cilium: Pathways for Disassembly in Differentiating Cells.BioEssays : news and reviews in molecular, cellular and developmental biology · 2025
    Review
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  9. Permanent cilia loss during cerebellar granule cell neurogenesis involves withdrawal of cilia maintenance and centriole capping.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
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  11. Review
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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

3 authors at 2 institutions in 1 country.

Emily K HoDepartment of Developmental Biology, Stanford School of Medicine, Stanford, CA 94305, USA.
Anaïs E TsaiDepartment of Biology, Stanford University, Stanford, CA 94305, USA.
Tim StearnsDepartment of Biology, Stanford University, Stanford, CA 94305, USA; Department of Genetics, Stanford School of Medicine, Stanford, CA 94305, USA. Electronic address: stearns@stanford.edu.
Stanford University · USStanford Medicine · US

Funding

Structure and mechanism of the centrosome-cilium complexR35GM130286 · NIGMS · STANFORD UNIVERSITY · PI STEARNS, TIM · 2019 to 2023
$3.4M
Regulation of Hedgehog-dependent proliferation by dynamic primary ciliaF31GM129950 · NIGMS · STANFORD UNIVERSITY · PI HO, EMILY KOLENBRANDER · 2018 to 2019
$73k
NIGMS NIH HHS F31 GM129950NIGMS NIH HHS R35 GM130286
6 · The paper itself

Abstract

The regulation of proliferation is a primary function of Hedgehog (Hh) signaling in development. Hh signal transduction requires the primary cilium for several steps in the pathway [1-5]. Many cells only build a primary cilium upon cell cycle exit, in G0. In those proliferating cells that do make a cilium, it is a transient organelle, being assembled in G1 and disassembled sometime prior to mitosis [6-9]. Thus, the requirement for primary cilia presents a conundrum: how are proliferative signals conveyed through an organelle that is present for only part of the cell cycle? Here, we investigate this question in a mouse medulloblastoma cell line, SMB55, that requires cilium-mediated Hh pathway activity for proliferation [10]. We show that SMB55 cells, and the primary cerebellar granule neuron precursors (GNPs) from which they derive, are often ciliated beyond G1 into S phase, and the presence of the cilium in SMB55 cells determines the periods of Hh pathway activity. Using live imaging over multiple cell cycles, we demonstrate that Hh pathway activity in either G1-S of the previous cell cycle or G1 of the cell cycle in which the decision is made is sufficient for cell cycle entry. We also show that cyclin D1 contributes to the persistent effects of pathway activity over multiple cell cycles. Together, our results reveal that, even though the signaling organelle itself is transient, Hh pathway control of proliferation is remarkably robust. Further, primary cilium transience may have implications for other Hh-mediated events in development.

Indexed as

AnimalsCell CycleCell Line, TumorCell ProliferationCiliaHedgehog ProteinsMedulloblastomaMiceSignal TransductionHedgehog Proteinscell cycleHedgehog signalingmedulloblastomaprimary cilia

Identifiers

PMID32531277
PMCPMC7923399
OpenAlexW3035602340

What OpenQuestion holds

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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.