Signaling Pathways Responsible for Breast Cancer Metastasis

A special issue of Cells (ISSN 2073-4409). This special issue belongs to the section "Cell Signaling".

Deadline for manuscript submissions: closed (31 March 2024) | Viewed by 2284

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Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
Interests: senescence; aging; microRNA; cancer stem cells
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Special Issue Information

Dear Colleagues,

Breast cancer is the most common disease among women and one of main leading causes of cancer-related death worldwide. Metastasis is widely accepted as the hallmark of cancer and considered to be responsible for recurrence and poor prognosis. The metastasis process consists of complex steps such as interaction with stromal cells, transition from epithelial to mesenchymal state, suppression immune cells, organ tropism, and colonization. Since the molecular mechanisms for metastasis process are not fully elucidated, it might be quite important to understand the biology of metastasis from various aspects. This Special Issue mainly focuses on the signaling pathway for breast cancer metastasis and aims to provide an overview of recent knowledge regarding each step of metastasis. In addition to the molecular principles of the metastasis process, we also focus on therapeutic and diagnostic approaches against breast cancer metastasis. This is because recent advances in the detection of circulating tumor cells and secreted DNAs/RNAs reveal that those molecules exert functional roles in the metastasis process and might be promising targets for cancer therapy and diagnosis.

This Special Issue of Cells will cover the following important aspects of breast cancer metastasis:

  • Signaling pathways that regulate the metastatic ability of breast cancer cells;
  • Epithelial to mesenchymal transition (EMT) regulators;
  • Immune suppression mechanisms for breast cancer metastasis;
  • Therapeutic and diagnostic approaches against breast cancer metastasis.

Dr. Ryou-u Takahashi
Guest Editor

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Keywords

  • EMT
  • immune suppression
  • organ tropism
  • CTC
  • secreted DNAs
  • secreted RNAs

Published Papers (1 paper)

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Research

15 pages, 5986 KiB  
Article
Investigation of Tumor Heterogeneity Using Integrated Single-Cell RNA Sequence Analysis to Focus on Genes Related to Breast Cancer-, EMT-, CSC-, and Metastasis-Related Markers in Patients with HER2-Positive Breast Cancer
by Sho Shiino, Momoko Tokura, Jun Nakayama, Masayuki Yoshida, Akihiko Suto and Yusuke Yamamoto
Cells 2023, 12(18), 2286; https://doi.org/10.3390/cells12182286 - 15 Sep 2023
Viewed by 1992
Abstract
Human epidermal growth factor receptor 2 (HER2) protein, which is characterized by the amplification of ERBB2, is a molecular target for HER2-overexpressing breast cancer. Many targeted HER2 strategies have been well developed thus far. Furthermore, intratumoral heterogeneity in HER2 cases has been [...] Read more.
Human epidermal growth factor receptor 2 (HER2) protein, which is characterized by the amplification of ERBB2, is a molecular target for HER2-overexpressing breast cancer. Many targeted HER2 strategies have been well developed thus far. Furthermore, intratumoral heterogeneity in HER2 cases has been observed with immunohistochemical staining and has been considered one of the reasons for drug resistance. Therefore, we conducted an integrated analysis of the breast cancer single-cell gene expression data for HER2-positive breast cancer cases from both scRNA-seq data from public datasets and data from our cohort and compared them with those for luminal breast cancer datasets. In our results, heterogeneous distribution of the expression of breast cancer-related genes (ESR1, PGR, ERBB2, and MKI67) was observed. Various gene expression levels differed at the single-cell level between the ERBB2-high group and ERBB2-low group. Moreover, molecular functions and ERBB2 expression levels differed between estrogen receptor (ER)-positive and ER-negative HER2 cases. Additionally, the gene expression levels of typical breast cancer-, CSC-, EMT-, and metastasis-related markers were also different across each patient. These results suggest that diversity in gene expression could occur not only in the presence of ERBB2 expression and ER status but also in the molecular characteristics of each patient. Full article
(This article belongs to the Special Issue Signaling Pathways Responsible for Breast Cancer Metastasis)
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