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Open AccessJournal ArticleDOI

Chemotaxis in cancer

TLDR
This Review summarizes how chemotaxis directs the different behaviours of tumour cells and stromal cells in vivo, how molecular pathways regulateChemotaxis in tumours and how chemtaxis choreographs cell behaviour to shape the tumour microenvironment and to determine metastatic spread.
Abstract
Chemotaxis of tumour cells and stromal cells in the surrounding microenvironment is an essential component of tumour dissemination during progression and metastasis. This Review summarizes how chemotaxis directs the different behaviours of tumour cells and stromal cells in vivo, how molecular pathways regulate chemotaxis in tumour cells and how chemotaxis choreographs cell behaviour to shape the tumour microenvironment and to determine metastatic spread. The central importance of chemotaxis in cancer progression is highlighted by discussion of the use of chemotaxis as a prognostic marker, a treatment end point and a target of therapeutic intervention.

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Critical roles of chemokine receptor CCR5 in regulating glioblastoma proliferation and invasion.

TL;DR: The present study provides the evidence that the chemokine receptor C CR5 is highly expressed and associated with poor prognosis in human GBM and suggests that the CCR5 is a critical molecular event associated with gliomagenesis.

Impact of Dimensionality and Network Disruption on Microrheology of Cancer Cells in 3D Environments

TL;DR: The results demonstrate that metastatic breast cancer cells (MDA-MB-231) exhibit more solid-like internal motions in 3D compared to 2D, and actin network disruption via Cytochalasin D has a more pronounced effect on internal cell fluctuations in 2D.
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Study of the Chemotactic Response of Multicellular Spheroids in a Microfluidic Device

TL;DR: It is observed that spheroids of oral squamous carcinoma cells OSC–19 invade collectively in the direction of the gradient of FBS, which is more directional and aggressive than that observed for individual cells in the same experimental setup.
Journal ArticleDOI

Inducing chemotactic and haptotactic cues in microfluidic devices for three-dimensional in vitro assays

TL;DR: 3D diffusion experiments are performed using microfluidic platforms in order to quantify the distribution of PDGF-BB and TGF-β1 across collagen and fibrin gels and are reproduced by computer simulations based on a reaction-diffusion transport model, confirming that diffusion and binding phenomena are established within the microdevice.
Journal ArticleDOI

Targeting Triple-Negative Breast Cancer with Combination Therapy of EGFR CAR T Cells and CDK7 Inhibition

Abstract: EGFR-targeted chimeric antigen receptor (CAR) T cells are potent and specific in suppressing the growth of triple-negative breast cancer (TNBC) in vitro and in vivo. However, in this study, a subset of mice soon acquired resistance, which limits the potential use of EGFR CAR T cells. We aimed to find a way to overcome the observed resistance. Transcriptomic analysis results revealed that EGFR CAR T-cell treatment induced a set of immunosuppressive genes, presumably through IFNγ signaling, in EGFR CAR T-cell-resistant TNBC tumors. The EGFR CAR T-cell-induced immunosuppressive genes were associated with EGFR CAR T-cell-activated enhancers and were especially sensitive to THZ1, a CDK7 inhibitor we screened out of a panel of small molecules targeting epigenetic modulators. Accordingly, combination therapy with THZ1 and EGFR CAR T cells suppressed immune resistance, tumor growth, and metastasis in TNBC tumor models, including human MDA-MB-231 cell-derived and TNBC patient-derived xenografts, and mouse EMT6 cell-derived allografts. Taken together, we demonstrated that transcriptional modulation using epigenetic inhibitors could overcome CAR T-cell therapy-induced immune resistance, thus providing a therapeutic avenue for treating TNBC in the clinic.
References
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Journal ArticleDOI

Epithelial-Mesenchymal Transitions in Development and Disease

TL;DR: The mesenchymal state is associated with the capacity of cells to migrate to distant organs and maintain stemness, allowing their subsequent differentiation into multiple cell types during development and the initiation of metastasis.
Journal ArticleDOI

Myeloid-derived suppressor cells as regulators of the immune system.

TL;DR: The origin, mechanisms of expansion and suppressive functions of MDSCs, as well as the potential to target these cells for therapeutic benefit are discussed.
Journal ArticleDOI

Involvement of chemokine receptors in breast cancer metastasis.

TL;DR: It is reported that the chemokine receptors CXCR4 and CCR7 are highly expressed in human breast cancer cells, malignant breast tumours and metastases and their respective ligands CXCL12/SDF-1α and CCL21/6Ckine exhibit peak levels of expression in organs representing the first destinations of breast cancer metastasis.
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What part of chemotaxis in cancer has not been studied yet?

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What part of chemotaxis in breast cancer has not been studied yet?

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