Evidence map›Paper›PMID 30563499›Full record

ArticleBMC cancer2018

GRP78 modulates cell adhesion markers in prostate Cancer and multiple myeloma cell lines.

Christopher N Cultrara, Stephen D Kozuch, Poornema Ramasundaram, Claudia J Heller, Sunil Shah, Adah E Beck, David Sabatino, Jenny Zilberberg

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

25 citing papers in PubMed, 45 citations in OpenAlex.

  1. Targeting Acetyl-CoA Carboxylase Suppresses De Novo Lipogenesis and Tumor Cell Growth in Multiple Myeloma.Clinical cancer research : an official journal of the American Association for Cancer Research · 2025
    Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Heat Shock Proteins in Benign Prostatic Hyperplasia and Prostate Cancer.International journal of molecular sciences · 2022
    Review
  11. Functionalized nanoparticles targeting biomarkers for prostate cancer imaging and therapy.American journal of clinical and experimental urology · 2022
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. 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

8 authors at 1 institution in 1 country.

Christopher N CultraraDepartment of Chemistry and Biochemistry, 400 South Orange Avenue, South Orange, NJ, 07079, USA.
Stephen D KozuchDepartment of Chemistry and Biochemistry, 400 South Orange Avenue, South Orange, NJ, 07079, USA.
Poornema RamasundaramCenter for Discovery and Innovation, Hackensack University Medical Center, 340 Kingsland Street, Building 102, Nutley, NJ, 07110, USA.
Claudia J HellerDepartment of Chemistry and Biochemistry, 400 South Orange Avenue, South Orange, NJ, 07079, USA.
Sunil ShahDepartment of Chemistry and Biochemistry, 400 South Orange Avenue, South Orange, NJ, 07079, USA.
Adah E BeckDepartment of Chemistry and Biochemistry, 400 South Orange Avenue, South Orange, NJ, 07079, USA.
David SabatinoDepartment of Chemistry and Biochemistry, 400 South Orange Avenue, South Orange, NJ, 07079, USA.
Jenny ZilberbergCenter for Discovery and Innovation, Hackensack University Medical Center, 340 Kingsland Street, Building 102, Nutley, NJ, 07110, USA. Jenny.Zilberberg@hackensackmeridian.org.ORCID http://orcid.org/0000-0002-4139-2616
Hackensack University Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGlucose regulated protein 78 (GRP78) is a resident chaperone of the endoplasmic reticulum and a master regulator of the unfolded protein response under physiological and pathological cell stress conditions. GRP78 is overexpressed in many cancers, regulating a variety of signaling pathways associated with tumor initiation, proliferation, adhesion and invasion which contributes to metastatic spread. GRP78 can also regulate cell survival and apoptotic pathways to alter responsiveness to anticancer drugs. Tumors that reside in or metastasize to the bone and bone marrow (BM) space can develop pro-survival signals through their direct adhesive interactions with stromal elements of this niche thereby resisting the cytotoxic effects of drug treatment. In this study, we report a direct correlation between GRP78 and the adhesion molecule N-cadherin (N-cad), known to play a critical role in the adhesive interactions of multiple myeloma and metastatic prostate cancer with the bone microenvironment.

methodsN-cad expression levels (transcription and protein) were evaluated upon siRNA mediated silencing of GRP78 in the MM.1S multiple myeloma and the PC3 metastatic prostate cancer cell lines. Furthermore, we evaluated the effects of GRP78 knockdown (KD) on epithelial-mesenchymal (EMT) transition markers, morphological changes and adhesion of PC3 cells.

resultsGRP78 KD led to concomitant downregulation of N-cad in both tumors types. In PC3 cells, GRP78 KD significantly decreased E-cadherin (E-cad) expression likely associated with the induction in TGF-β1 expression. Furthermore, GRP78 KD also triggered drastic changes in PC3 cells morphology and decreased their adhesion to osteoblasts (OSB) dependent, in part, to the reduced N-cad expression.

conclusionThis work implicates GRP78 as a modulator of cell adhesion markers in MM and PCa. Our results may have clinical implications underscoring GRP78 as a potential therapeutic target to reduce the adhesive nature of metastatic tumors to the bone niche.

Indexed as

ApoptosisBone NeoplasmsCadherinsCell AdhesionCell Line, TumorCell ProliferationEndoplasmic Reticulum Chaperone BiPEpithelial-Mesenchymal TransitionGene Expression Regulation, NeoplasticHeat-Shock ProteinsHumansMaleMultiple MyelomaNeoplasm MetastasisOsteoblastsPC-3 CellsCadherinsEndoplasmic Reticulum Chaperone BiPHeat-Shock ProteinsHSPA5 protein, humanRNA, Small InterferingTransforming Growth Factor beta1Cell adhesionEpithelia-mesenchymal transition (EMT)Gene knockdownGRP78

Identifiers

PMID30563499
PMCPMC6299583
OpenAlexW2904009992

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.