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Collagen Prolyl Hydroxylases are Essential for Breast Cancer Metastasis

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TLDR
It is demonstrated that hypoxia-inducible factor 1 activates the transcription of genes encoding collagen prolyl hydroxylases that are critical for collagen deposition by breast cancer cells, resulting in enhanced invasion and metastasis to lymph nodes and lungs.
Abstract
The presence of hypoxia and fibrosis within the primary tumor are two major risk factors for metastasis of human breast cancer. In this study, we demonstrate that hypoxia-inducible factor 1 activates the transcription of genes encoding collagen prolyl hydroxylases that are critical for collagen deposition by breast cancer cells. We show that expression of collagen prolyl hydroxylases promotes cancer cell alignment along collagen fibers, resulting in enhanced invasion and metastasis to lymph nodes and lungs. Finally, we establish the prognostic significance of collagen prolyl hydroxylase mRNA expression in human breast cancer biopsies and show that ethyl 3,4-dihydroxybenzoate, a prolyl hydroxylase inhibitor, decreases tumor fibrosis and metastasis in a mouse model of breast cancer.

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3D hydrogel breast cancer models for studying the effects of hypoxia on epithelial to mesenchymal transition.

TL;DR: 3D breast cancer cell culture platform is generated and it is demonstrated that hypoxia decreased cellular assembly size and density, and promoted epithelial to mesenchymal transition (EMT) process, without affecting cell viability, and LOX inhibitor exhibited a significant decrease in breast cancercell viability, migration, and EMT.
Journal ArticleDOI

Characterization of Glycolysis-Associated Molecules in the Tumor Microenvironment Revealed by Pan-Cancer Tissues and Lung Cancer Single Cell Data.

TL;DR: The hypoxia pressure, growth signals, oncogene mutation and other potential signals could activate glycolysis, thereby to regulate cell cycle, energy material synthesis, cell proliferation and cancer progression.
Journal ArticleDOI

Emerging nanomedicines for anti-stromal therapy against desmoplastic tumors

TL;DR: The major components of the tumor stroma are reviewed and the potential of nano-enabled anti-stromal therapy to enhance the anti-tumor efficacy of other therapeutic modalities, including chemotherapy, immunotherapy, phototherapy and radiotherapy is examined.
Journal ArticleDOI

Identification of prognostic collagen signatures and potential therapeutic stromal targets in canine mammary gland carcinoma

TL;DR: Data, which identify for the first time, prognostic collagen biomarkers in naturally occurring mammary gland neoplasia in the dog, support the use of the dog as a translational model for tumor-stromal interactions in breast cancer.
Journal ArticleDOI

MiR-122 inhibits epithelial mesenchymal transition by regulating P4HA1 in ovarian cancer cells.

TL;DR: It is demonstrated that miR‐122 inhibited migration, invasion, EMT, and metastasis in peritoneal cavity of ovarian cancer cells by targeting P4HA1 for the first time, which shed lights on the discovery of miR-122 and P4 HA1 as possible potential diagnostic markers and therapeutic targets for ovarian cancer.
References
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Journal ArticleDOI

Comprehensive molecular portraits of human breast tumours

Daniel C. Koboldt, +355 more
- 04 Oct 2012 - 
TL;DR: The ability to integrate information across platforms provided key insights into previously defined gene expression subtypes and demonstrated the existence of four main breast cancer classes when combining data from five platforms, each of which shows significant molecular heterogeneity.
Journal ArticleDOI

Hypoxia-inducible factor 1 is a basic-helix-loop-helix-PAS heterodimer regulated by cellular O2 tension

TL;DR: Hypoxia-inducible factor 1 (HIF-1) is found in mammalian cells cultured under reduced O2 tension and is necessary for transcriptional activation mediated by the erythropoietin gene enhancer in hypoxic cells.
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Tensional homeostasis and the malignant phenotype.

TL;DR: It is found that tumors are rigid because they have a stiff stroma and elevated Rho-dependent cytoskeletal tension that drives focal adhesions, disrupts adherens junctions, perturbs tissue polarity, enhances growth, and hinders lumen formation.
Journal ArticleDOI

Matrix Crosslinking Forces Tumor Progression by Enhancing Integrin Signaling

TL;DR: Reduction of lysyl oxidase-mediated collagen crosslinking prevented MMTV-Neu-induced fibrosis, decreased focal adhesions and PI3K activity, impeded malignancy, and lowered tumor incidence, and data show how collagenCrosslinking can modulate tissue fibrosis and stiffness to force focal adhesion, growth factor signaling and breast malignancies.
Journal ArticleDOI

Tumour-cell invasion and migration: diversity and escape mechanisms

TL;DR: Cancer cells possess a broad spectrum of migration and invasion mechanisms and learning more about the cellular and molecular basis of these different migration/invasion programmes will help to understand how cancer cells disseminate and lead to new treatment strategies.
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