scholarly journals Role of extracellular matrix in breast cancer development: a brief update

F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 274 ◽  
Author(s):  
Manoj Kumar Jena ◽  
Jagadeesh Janjanam
Keyword(s):  
Breast Cancer ◽  
Extracellular Matrix ◽  
Cancer Progression ◽  
Breast Cancer Progression ◽  
Cancer Development ◽  
Invasion And Metastasis ◽  
Mesenchymal Transition ◽  
Breast Cancer Development ◽  
Cancer Pathogenesis

Evidence is increasing on the crucial role of the extracellular matrix (ECM) in breast cancer progression, invasion and metastasis with almost all mortality cases owing to metastasis. The epithelial-mesenchymal transition is the first signal of metastasis involving different transcription factors such as Snail, TWIST, and ZEB1. ECM remodeling is a major event promoting cancer invasion and metastasis; where matrix metalloproteinases (MMPs) such as MMP-2, -9, -11, and -14 play vital roles degrading the matrix proteins for cancer spread. The β-D mannuronic acid (MMP inhibitor) has anti-metastatic properties through inhibition of MMP-2, and -9 and could be a potential therapeutic agent. Besides the MMPs, the enzymes such as LOXL2, LOXL4, procollagen lysyl hydroxylase-2, and heparanase also regulate breast cancer progression. The important ECM proteins like integrins (b1-, b5-, and b6- integrins), ECM1 protein, and Hic-5 protein are also actively involved in breast cancer development. The stromal cells such as tumor-associated macrophages (TAMs), cancer-associated fibroblasts (CAFs), and adipocytes also contribute in tumor development through different processes. The TAMs become proangiogenic through secretion of VEGF-A and building vessel network for nourishment and invasion of the tumor mass. The latest developments of ECM involvement in breast cancer progression has been discussed in this review and this study will help researchers in designing future work on breast cancer pathogenesis and developing therapy targeted to the ECM components.

scholarly journals Role of extracellular matrix in breast cancer development: a brief update

F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 274 ◽  
Author(s):  
Manoj Kumar Jena ◽  
Jagadeesh Janjanam
Keyword(s):  
Breast Cancer ◽  
Extracellular Matrix ◽  
Cancer Progression ◽  
Breast Cancer Progression ◽  
Cancer Development ◽  
Invasion And Metastasis ◽  
Mesenchymal Transition ◽  
Breast Cancer Development ◽  
Cancer Pathogenesis

Evidence is increasing on the crucial role of the extracellular matrix (ECM) in breast cancer progression, invasion and metastasis with almost all mortality cases owing to metastasis. The epithelial-mesenchymal transition is the first signal of metastasis involving different transcription factors such as Snail, TWIST, and ZEB1. ECM remodeling is a major event promoting cancer invasion and metastasis; where matrix metalloproteinases (MMPs) such as MMP-2, -9, -11, and -14 play vital roles degrading the matrix proteins for cancer spread. The β-D mannuronic acid (MMP inhibitor) has anti-metastatic properties through inhibition of MMP-2, and -9 and could be a potential therapeutic agent. Besides the MMPs, the enzymes such as LOXL2, LOXL4, procollagen lysyl hydroxylase-2, and heparanase also regulate breast cancer progression. The important ECM proteins like integrins (b1-, b5-, and b6- integrins), ECM1 protein, and Hic-5 protein are also actively involved in breast cancer development. The stromal cells such as tumor-associated macrophages (TAMs), cancer-associated fibroblasts (CAFs), and adipocytes also contribute in tumor development through different processes. The TAMs become proangiogenic through secretion of VEGF-A and building vessel network for nourishment and invasion of the tumor mass. The latest developments of ECM involvement in breast cancer progression has been discussed in this review and this study will help researchers in designing future work on breast cancer pathogenesis and developing therapy targeted to the ECM components.

scholarly journals Environmental chemicals, breast cancer progression and drug resistance

2020 ◽  
Vol 19 (1) ◽  
Author(s):  
Meriem Koual ◽  
Céline Tomkiewicz ◽  
German Cano-Sancho ◽  
Jean-Philippe Antignac ◽  
Anne-Sophie Bats ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Progression ◽  
Molecular Mechanisms ◽  
Environmental Chemicals ◽  
Breast Cancer Progression ◽  
Environmental Toxicants ◽  
Metastasis Formation ◽  
Mesenchymal Transition ◽  
Invasion Mechanisms

AbstractBreast cancer (BC) is one of the most common causes of cancer in the world and the second leading cause of cancer deaths among women. Mortality is associated mainly with the development of metastases. Identification of the mechanisms involved in metastasis formation is, therefore, a major public health issue. Among the proposed risk factors, chemical environment and pollution are increasingly suggested to have an effect on the signaling pathways involved in metastatic tumor cells emergence and progression. The purpose of this article is to summarize current knowledge about the role of environmental chemicals in breast cancer progression, metastasis formation and resistance to chemotherapy. Through a scoping review, we highlight the effects of a wide variety of environmental toxicants, including persistent organic pollutants and endocrine disruptors, on invasion mechanisms and metastatic processes in BC. We identified the epithelial-to-mesenchymal transition and cancer-stemness (the stem cell-like phenotype in tumors), two mechanisms suspected of playing key roles in the development of metastases and linked to chemoresistance, as potential targets of contaminants. We discuss then the recently described pro-migratory and pro-invasive Ah receptor signaling pathway and conclude that his role in BC progression is still controversial. In conclusion, although several pertinent pathways for the effects of xenobiotics have been identified, the mechanisms of actions for multiple other molecules remain to be established. The integral role of xenobiotics in the exposome in BC needs to be further explored through additional relevant epidemiological studies that can be extended to molecular mechanisms.

scholarly journals Role of microRNAs in breast cancer development and their potential as biomarkers

2018 ◽  
Vol 14 (3) ◽  
pp. 40-47 ◽  
Author(s):  
K. A. Grishina ◽  
V. A. Khaylenko ◽  
D. V. Khaylenko ◽  
A. V. Karpukhin
Keyword(s):  
Breast Cancer ◽  
Cancer Progression ◽  
Malignant Disease ◽  
Molecular Mechanisms ◽  
Develop Breast Cancer ◽  
Cancer Prognosis ◽  
Cancer Development ◽  
Targeted Drugs ◽  
Breast Cancer Development

Breast cancer is the 2nd most common malignant disease after lung cancer; about 1 in 8 women will develop breast cancer in her lifetime. Cancer progression is a serious complication of the disease that encourages comprehensive investigation of molecular mechanisms underlying breast cancer development. This is also important for healthcare professionals involved in patient management, since they have to choose an optimal treatment regimen. This article discusses the role of microRNAs in the development of breast cancer, their biogenesis, classification, association with various molecular subtypes of breast cancer, and their potential role in the development of new targeted drugs for breast cancer therapy. Current research on the role of microRNAs in breast cancer progression is focused on the development of markers for breast cancer prognosis, diagnostic markers and new targeted drugs.

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