Evidence map›Paper›PMID 20650888›Full record

ArticleThe Journal of biological chemistry2010

Regulation of sealing ring formation by L-plastin and cortactin in osteoclasts.

Tao Ma, Kavitha Sadashivaiah, Nandakumar Madayiputhiya, Meenakshi A Chellaiah

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

37 citing papers in PubMed, 67 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Early-Onset Osteoporosis: Rare Monogenic Forms Elucidate the Complexity of Disease Pathogenesis Beyond Type I Collagen.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2022
    Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Plastin 3 in X-Linked Osteoporosis: Imbalance of CaFrontiers in cell and developmental biology · 2020
    Review
  16. Article
  17. Review
  18. Review
  19. Article
  20. Review
4 · The record

Corrections and comments

  • Erratum issued
    Madayiputhiya, Nandakumar [added]
5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Tao MaDepartment of Oncology and Diagnostic Sciences, Dental School, University of Maryland, Baltimore, Maryland 21201, USA.
Kavitha Sadashivaiah
Nandakumar Madayiputhiya
Meenakshi A Chellaiah
University of Maryland, Baltimore · US

Funding

Regulation of Signaling in Osteoclast Bone ResorptionR01AR046292 · NIAMS · UNIVERSITY OF MARYLAND BALTIMORE · PI CHELLAIAH, MEENAKSHI A · 1999 to 2007
$1.8M
Regulation of Signaling in Osteoclast Bone ResorptionR56AR046292 · NIAMS · UNIVERSITY OF MARYLAND BALTIMORE · PI CHELLAIAH, MEENAKSHI A · 2009 to 2009
$338k
NIAMS NIH HHS AR46292NIAMS NIH HHS R01 AR046292NIAMS NIH HHS R56 AR046292
6 · The paper itself

Abstract

The aim of this study is to identify the exact mechanism(s) by which cytoskeletal structures are modulated during bone resorption. In this study, we have shown the possible role of different actin-binding and signaling proteins in the regulation of sealing ring formation. Our analyses have demonstrated a significant increase in cortactin and a corresponding decrease in L-plastin protein levels in osteoclasts subjected to bone resorption for 18 h in the presence of RANKL, M-CSF, and native bone particles. Time-dependent changes in the localization of L-plastin (in actin aggregates) and cortactin (in the sealing ring) suggest that these proteins may be involved in the initial and maturation phases of sealing ring formation, respectively. siRNA to cortactin inhibits this maturation process but not the formation of actin aggregates. Osteoclasts treated as above but with TNF-α demonstrated very similar effects as observed with RANKL. Osteoclasts treated with a neutralizing antibody to TNF-α displayed podosome-like structures in the entire subsurface and at the periphery of osteoclast. It is possible that TNF-α and RANKL-mediated signaling may play a role in the early phase of sealing ring configuration (i.e. either in the disassembly of podosomes or formation of actin aggregates). Furthermore, osteoclasts treated with alendronate or αv reduced the formation of the sealing ring but not actin aggregates. The present study demonstrates a novel mechanistic link between L-plastin and cortactin in sealing ring formation. These results suggest that actin aggregates formed by L-plastin independent of integrin signaling function as a core in assembling signaling molecules (integrin αvβ3, Src, cortactin, etc.) involved in the maturation process.

Indexed as

ActinsAnimalsAntibodies, NeutralizingBone ResorptionCells, CulturedCortactinCytoskeletal ProteinsCytoskeletonIntegrinsMacrophage Colony-Stimulating FactorMiceMicrofilament ProteinsOsteoclastsPhosphoproteinsRANK LigandRNA, Small InterferingActinsAntibodies, NeutralizingCortactinCttn protein, mouseCytoskeletal ProteinsIntegrinsLcp1 protein, mouseMacrophage Colony-Stimulating FactorMicrofilament ProteinsPhosphoproteinsRANK LigandRNA, Small InterferingTnfsf11 protein, mouseTumor Necrosis Factor-alpha

Identifiers

PMID20650888
PMCPMC2943304
OpenAlexW2064615925

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.