Evidence map›Paper›PMID 27791140›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2016

Calcium transport into the cells of the sea urchin larva in relation to spicule formation.

Netta Vidavsky, Sefi Addadi, Andreas Schertel, David Ben-Ezra, Muki Shpigel, Lia Addadi, Steve Weiner

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
11.0field-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

32 citing papers in PubMed, 80 citations in OpenAlex.

  1. Possible role of microtubules in vesicular transport of matrix protein during sea urchin larval biomineralization.Developmental dynamics : an official publication of the American Association of Anatomists · 2026
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  2. Article
  3. Review
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  5. A mechanosensitive circuit of FAK, ROCK, and ERK controls biomineral growth and morphology in the sea urchin embryo.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  6. Review
  7. Article
  8. Article
  9. Extracellular carbonic anhydrase activity promotes a carbon concentration mechanism in metazoan calcifying cells.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  10. Distinct regulatory states control the elongation of individual skeletal rods in the sea urchin embryo.Developmental dynamics : an official publication of the American Association of Anatomists · 2022
    Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. iScience · 2021
    Article
  16. Article
  17. Article
  18. Article
  19. Cellular pathways of calcium transport and concentration toward mineral formation in sea urchin larvae.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  20. 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

7 authors at 3 institutions in 2 countries.

Netta VidavskyDepartment of Structural Biology, Weizmann Institute of Science, 76100 Rehovot, Israel.
Sefi AddadiLife Sciences Core Facilities, Weizmann Institute of Science, 76100 Rehovot, Israel.
Andreas SchertelGlobal Applications Support, Carl Zeiss Microscopy GmbH, 73447 Oberkochen, Germany.
David Ben-EzraIsrael Oceanographic and Limnological Research, National Center for Mariculture, Eilat 88112, Israel.
Muki ShpigelIsrael Oceanographic and Limnological Research, National Center for Mariculture, Eilat 88112, Israel.
Lia AddadiDepartment of Structural Biology, Weizmann Institute of Science, 76100 Rehovot, Israel.
Steve WeinerDepartment of Structural Biology, Weizmann Institute of Science, 76100 Rehovot, Israel; steve.weiner@weizmann.ac.il.
Weizmann Institute of Science · ILIsrael Oceanographic and Limnological Research · ILCarl Zeiss (Germany) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We investigated the manner in which the sea urchin larva takes up calcium from its body cavity into the primary mesenchymal cells (PMCs) that are responsible for spicule formation. We used the membrane-impermeable fluorescent dye calcein and alexa-dextran, with or without a calcium channel inhibitor, and imaged the larvae in vivo with selective-plane illumination microscopy. Both fluorescent molecules are taken up from the body cavity into the PMCs and ectoderm cells, where the two labels are predominantly colocalized in particles, whereas the calcium-binding calcein label is mainly excluded from the endoderm and is concentrated in the spicules. The presence of vesicles and vacuoles inside the PMCs that have openings through the plasma membrane directly to the body cavity was documented using high-resolution cryo-focused ion beam-SEM serial imaging. Some of the vesicles and vacuoles are interconnected to form large networks. We suggest that these vacuolar networks are involved in direct sea water uptake. We conclude that the calcium pathway from the body cavity into cells involves nonspecific endocytosis of sea water with its calcium.

Indexed as

biomineralizationcryo-FIB-SEMendocytosisin vivo imagingSPIM imaging

Identifiers

PMID27791140
PMCPMC5111655
OpenAlexW2539070134

What OpenQuestion holds

Textmetadata
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.