Evidence map›Paper›PMID 33966046›Full record

ArticleCell death & disease2021

CXCR4 intracellular protein promotes drug resistance and tumorigenic potential by inversely regulating the expression of Death Receptor 5.

Mushtaq A Nengroo, Shrankhla Maheshwari, Akhilesh Singh, Ayushi Verma, Rakesh K Arya, Priyank Chaturvedi, Krishan K Saini, Anup K Singh, Abhipsa Sinha, Sanjeev Meena and 4 more

Open access · goldAbstract read
In one paragraph

Article in Cell death & disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
4.4field-weighted citation impact, top 4% 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

24 citing papers in PubMed, 61 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Steroidal Alkaloids fromACS omega · 2025
    Article
  5. Review
  6. Disruption of constitutive CXCR4 oligomers impairs oncogenic properties in lymphoid neoplasms.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  7. Article
  8. Article
  9. CXCR4/CXCL12 blockade therapy; a new horizon in TNBC therapy.Medical oncology (Northwood, London, England) · 2025
    Review
  10. Immunoexpression of CXCL12 and CXCR4 in oral tongue squamous cell carcinoma of young and older patients.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2025
    Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Comprehensive summary: the role of PBX1 in development and cancers.Frontiers in cell and developmental biology · 2024
    Review
  16. Article
  17. CXC chemokine receptor 4 (CXCR4) blockade in cancer treatment.Journal of cancer research and clinical oncology · 2023
    Review
  18. Article
  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

14 authors at 2 institutions in 1 country.

Mushtaq A Nengroo *Division of Cancer Biology, CSIR-Central Drug Research Institute (CDRI), Lucknow, 226031, India.
Shrankhla Maheshwari *Division of Cancer Biology, CSIR-Central Drug Research Institute (CDRI), Lucknow, 226031, India.
Akhilesh SinghDivision of Cancer Biology, CSIR-Central Drug Research Institute (CDRI), Lucknow, 226031, India.
Ayushi VermaDivision of Cancer Biology, CSIR-Central Drug Research Institute (CDRI), Lucknow, 226031, India.
Rakesh K AryaDivision of Cancer Biology, CSIR-Central Drug Research Institute (CDRI), Lucknow, 226031, India.
Priyank ChaturvediDivision of Cancer Biology, CSIR-Central Drug Research Institute (CDRI), Lucknow, 226031, India.
Krishan K SainiDivision of Cancer Biology, CSIR-Central Drug Research Institute (CDRI), Lucknow, 226031, India.
Anup K SinghDivision of Cancer Biology, CSIR-Central Drug Research Institute (CDRI), Lucknow, 226031, India.
Abhipsa SinhaDivision of Cancer Biology, CSIR-Central Drug Research Institute (CDRI), Lucknow, 226031, India.
Sanjeev MeenaDivision of Cancer Biology, CSIR-Central Drug Research Institute (CDRI), Lucknow, 226031, India.
Annapurna GuptaSanjay Gandhi Post Graduate Institute of Medical Sciences (SGPGIMS), Lucknow, 226014, India.
Anjali MishraSanjay Gandhi Post Graduate Institute of Medical Sciences (SGPGIMS), Lucknow, 226014, India.
Jayanta SarkarDivision of Cancer Biology, CSIR-Central Drug Research Institute (CDRI), Lucknow, 226031, India.
Dipak DattaDivision of Cancer Biology, CSIR-Central Drug Research Institute (CDRI), Lucknow, 226031, India. dipak.datta@cdri.res.in.ORCID 0000-0001-7540-8543
Central Drug Research Institute · INSanjay Gandhi Post Graduate Institute of Medical Sciences · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chemokine receptor CXCR4 overexpression in solid tumors has been strongly associated with poor prognosis and adverse clinical outcome. However, blockade of CXCL12-CXCR4 signaling axis by inhibitors like Nox-A12, FDA approved CXCR4 inhibitor drug AMD3100 have shown limited clinical success in cancer treatment. Therefore, exclusive contribution of CXCR4-CXCL12 signaling in pro-tumorigenic function is questionable. In our pursuit to understand the impact of chemokine signaling in carcinogenesis, we reveal that instead of CXCR4-CXCL12 signaling, presence of CXCR4 intracellular protein augments paclitaxel resistance and pro-tumorigenic functions. In search of pro-apoptotic mechanisms for CXCR4 mediated drug resistance; we discover that DR5 is a new selective target of CXCR4 in breast and colon cancer. Further, we detect that CXCR4 directs the differential recruitment of transcription factors p53 and YY1 to the promoter of DR5 in course of its transcriptional repression. Remarkably, inhibiting CXCR4-ligand-mediated signals completely fails to block the above phenotype. Overexpression of different mutant versions of CXCR4 lacking signal transduction capabilities also result in marked downregulation of DR5 expression in colon cancer indeed confirms the reverse relationship between DR5 and intracellular CXCR4 protein expression. Irrespective of CXCR4 surface expression, by utilizing stable gain and loss of function approaches, we observe that intracellular CXCR4 protein selectively resists and sensitizes colon cancer cells against paclitaxel therapy in vitro and in vivo. Finally, performing TCGA data mining and using human breast cancer patient samples, we demonstrate that expression of CXCR4 and DR5 are inversely regulated. Together, our data suggest that targeting CXCR4 intracellular protein may be critical to dampen the pro-tumorigenic functions of CXCR4.

Indexed as

Breast NeoplasmsCell Line, TumorDrug Resistance, NeoplasmFemaleHumansReceptors, CXCR4Receptors, TNF-Related Apoptosis-Inducing LigandCXCR4 protein, humanReceptors, CXCR4Receptors, TNF-Related Apoptosis-Inducing LigandTNFRSF10B protein, human

Identifiers

PMID33966046
PMCPMC8106681
OpenAlexW3160702100

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Registered trials

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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.