Evidence map›Paper›PMID 23544174›Full record

ArticleTranslational oncology2013

CXCR2 macromolecular complex in pancreatic cancer: a potential therapeutic target in tumor growth.

Shuo Wang, Yanning Wu, Yuning Hou, Xiaoqing Guan, Marcello P Castelvetere, Jacob J Oblak, Sanjeev Banerjee, Theresa M Filtz, Fazlul H Sarkar, Xuequn Chen and 2 more

RetractedErratum issuedOpen access · goldAbstract read
In one paragraph

Article in Translational oncology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.7field-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

28 citing papers in PubMed, 57 citations in OpenAlex.

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4 · The record

Corrections and comments

  • Correction · 2013-12-01Duplication of/in Image · Investigation by Company/Institution · Manipulation of Images · Misconduct - Official Investigation(s) and/or Finding(s) · · Wayne State University investigated Fazlul Sarkar
  • Erratum issued
5 · Who and what money

Authors and funding

12 authors at 3 institutions in 1 country.

Shuo WangDepartment of Biochemistry and Molecular Biology, Wayne State University School of Medicine, Detroit, MI.
Yanning Wu
Yuning Hou
Xiaoqing Guan
Marcello P Castelvetere
Jacob J Oblak
Sanjeev Banerjee
Theresa M Filtz
Fazlul H Sarkar
Xuequn Chen
Bhanu P Jena
Chunying Li
Wayne State University · USOregon State University · USThe Barbara Ann Karmanos Cancer Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The signaling mediated by the chemokine receptor CXC chemokine receptor 2 (CXCR2) plays an important role in promoting the progression of many cancers, including pancreatic cancer, one of the most lethal human malignancies. CXCR2 possesses a consensus PSD-95/DlgA/ZO-1 (PDZ) motif at its carboxyl termini, which might interact with potential PDZ scaffold/adaptor proteins. We have previously reported that CXCR2 PDZ motif-mediated protein interaction is an important regulator for neutrophil functions. Here, using a series of biochemical assays, we demonstrate that CXCR2 is physically coupled to its downstream effector phospholipase C-β3 (PLC-β3) that is mediated by PDZ scaffold protein Na(+)/H(+) exchange regulatory factor 1 (NHERF1) into a macromolecular signaling complex both in vitro and in pancreatic cancer cells. We also observe that disrupting the CXCR2 complex, by gene delivery or peptide delivery of exogenous CXCR2 C-tail, significantly inhibits the biologic functions of pancreatic cancer cells (i.e., proliferation and invasion) in a PDZ motif-dependent manner. In addition, using a human pancreatic tumor xenograft model, we show that gene delivery of CXCR2 C-tail sequence (containing the PDZ motif) by adeno-associated virus type 2 viral vector potently suppresses human pancreatic tumor growth in immunodeficient mice. In summary, our results suggest the existence of a physical and functional coupling of CXCR2 and PLC-β3 mediated through NHERF1, forming a macromolecular complex that is critical for efficient and specific CXCR2 signaling in pancreatic cancer progression. Disrupting this CXCR2 complex could represent a novel and effective treatment strategy against pancreatic cancer.

Identifiers

PMID23544174
PMCPMC3610555
OpenAlexW2120193650

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.