Evidence map›Paper›PMID 30057273›Full record

ArticleDevelopmental cell2018

Small RNAs Are Trafficked from the Epididymis to Developing Mammalian Sperm.

Upasna Sharma, Fengyun Sun, Colin C Conine, Brian Reichholf, Shweta Kukreja, Veronika A Herzog, Stefan L Ameres, Oliver J Rando

Open access · bronzeAbstract read
In one paragraph

Article in Developmental cell, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 222 papers.

0numbers the graph read from it
0cells of the map it votes in
222citing papers in PubMed
17.0field-weighted citation impact, top 1% 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

222 citing papers in PubMed, 444 citations in OpenAlex.

  1. Article
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  4. The KIF6-RBP Complex Orchestrates mRNA Transport Required for Sperm Flagellar Assembly.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
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  8. Paternal Circadian Disruption Impairs Offspring Cognition via Sperm microRNAs.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  9. Testicular origin of epigenetic inheritance independent of sperm mitochondrial DNA and epididymal exposure.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
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162 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Upasna SharmaDepartment of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA 01605, USA.
Fengyun SunDepartment of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA 01605, USA.
Colin C ConineDepartment of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA 01605, USA.
Brian ReichholfInstitute of Molecular Biotechnology (IMBA), Vienna Biocenter Campus (VBC), 1030 Vienna, Austria.
Shweta KukrejaDepartment of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA 01605, USA.
Veronika A HerzogInstitute of Molecular Biotechnology (IMBA), Vienna Biocenter Campus (VBC), 1030 Vienna, Austria.
Stefan L AmeresInstitute of Molecular Biotechnology (IMBA), Vienna Biocenter Campus (VBC), 1030 Vienna, Austria.
Oliver J RandoDepartment of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA 01605, USA. Electronic address: oliver.rando@umassmed.edu.
University of Massachusetts Chan Medical School · USInstitute of Molecular Biotechnology · ATVienna Biocenter · AT

Funding

Dietary effects on the sperm epigenomeR01HD080224 · NICHD · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI RANDO, OLIVER J · 2014 to 2022
$5.9M
tRNA fragments as transgenerational information carriersDP1ES025458 · NIEHS · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI RANDO, OLIVER J · 2014 to 2018
$4.2M
Transgenerational effects of diet in mammalsR01GM088618 · NIGMS · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI RANDO, OLIVER J · 2009 to 2012
$1.3M
NICHD NIH HHS R01 HD080224NIEHS NIH HHS DP1 ES025458NIGMS NIH HHS R01 GM088618
6 · The paper itself

Abstract

The biogenesis of the RNA payload of mature sperm is of great interest, because RNAs delivered to the zygote at fertilization can affect early development. Here, we tested the hypothesis that small RNAs are trafficked to mammalian sperm during the process of post-testicular maturation in the epididymis. By characterizing small RNA dynamics during germ cell maturation in mice, we confirm and extend prior observations that sperm undergo a dramatic switch in the RNA payload from piRNAs to tRNA fragments (tRFs) upon exiting the testis and entering the epididymis. Small RNA delivery to sperm could be recapitulated in vitro by incubating testicular spermatozoa with caput epididymosomes. Finally, tissue-specific metabolic labeling of RNAs in intact mice definitively shows that mature sperm carry RNAs that were originally synthesized in the epididymal epithelium. These data demonstrate that soma-germline RNA transfer occurs in male mammals, most likely via vesicular transport from the epididymis to maturing sperm.

Indexed as

AnimalsBiological TransportCell MovementEpididymisMaleMammalsMice, TransgenicMicroRNAsProtein TransportSpermatozoaSperm MaturationTestisMicroRNAsepigeneticssmall RNAsspermatogenesis

Identifiers

PMID30057273
PMCPMC6103849
OpenAlexW2757243009

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.