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Review
. 2022 Aug 11:12:932608.
doi: 10.3389/fonc.2022.932608. eCollection 2022.

A review of granulocyte colony-stimulating factor receptor signaling and regulation with implications for cancer

Affiliations
Review

A review of granulocyte colony-stimulating factor receptor signaling and regulation with implications for cancer

Sungjin David Park et al. Front Oncol. .

Abstract

Granulocyte colony-stimulating factor receptor (GCSFR) is a critical regulator of granulopoiesis. Studies have shown significant upregulation of GCSFR in a variety of cancers and cell types and have recognized GCSFR as a cytokine receptor capable of influencing both myeloid and non-myeloid immune cells, supporting pro-tumoral actions. This systematic review aims to summarize the available literature examining the mechanisms that control GCSFR signaling, regulation, and surface expression with emphasis on how these mechanisms may be dysregulated in cancer. Experiments with different cancer cell lines from breast cancer, bladder cancer, glioma, and neuroblastoma are used to review the biological function and underlying mechanisms of increased GCSFR expression with emphasis on actions related to tumor proliferation, migration, and metastasis, primarily acting through the JAK/STAT pathway. Evidence is also presented that demonstrates a differential physiological response to aberrant GCSFR signal transduction in different organs. The lifecycle of the receptor is also reviewed to support future work defining how this signaling axis becomes dysregulated in malignancies.

Keywords: CSF3R; GCSFR; cancer; regulation; signaling/signaling pathways.

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Conflict of interest statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Figures

Figure 1
Figure 1
Overall GCSFR Structure.
Figure 2
Figure 2
General Overview of GCSFR Signal Pathways. Adapted from “Hippo Pathway in Mammals”, by BioRender.com (2022). Retrieved from https://app.biorender.com/biorender-templates.
Figure 3
Figure 3
STAT3 Activation Mechanisms. Adapted from “Cytokine Signaling through the JAK-STAT Pathway”, by BioRender.com (2022). Retrieved from https://app.biorender.com/biorender-templates.
Figure 4
Figure 4
SOCS Inhibition Mechanisms. Adapted from “Cytokine Receptor Families”, by BioRender.com (2022). Retrieved from https://app.biorender.com/biorender-templates.
Figure 5
Figure 5
Transcription Factors of GCSFR (CSF3R). Adapted from “CREB Signaling Pathway”, by BioRender.com (2022). Retrieved from https://app.biorender.com/biorender-templates.
Figure 6
Figure 6
GCSFR Degradation and Recycle Mechanisms. Adapted from “Endocytosis and Exocytosis with Membrane Rupture (Layout)”, by BioRender.com (2022). Retrieved from https://app.biorender.com/biorender-templates.

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