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Pan C, Xu A, Ma X, Yao Y, Zhao Y, Wang C, Chen C. Research progress of Claudin-low breast cancer. Front Oncol 2023; 13:1226118. [PMID: 37904877 PMCID: PMC10613467 DOI: 10.3389/fonc.2023.1226118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 09/26/2023] [Indexed: 11/01/2023] Open
Abstract
Claudin-low breast cancer (CLBC) is a subgroup of breast cancer discovered at the molecular level in 2007. Claudin is one of the primary proteins that make up tight junctions, and it plays crucial roles in anti-inflammatory and antitumor responses as well as the maintenance of water and electrolyte balance. Decreased expression of claudin results in the disruption of tight junction structures and the activation of downstream signaling pathways, which can lead to tumor formation. The origin of Claudin-low breast cancer is still in dispute. Claudin-low breast cancer is characterized by low expression of Claudin3, 4, 7, E-cadherin, and HER2 and high expression of Vimentin, Snai 1/2, Twist 1/2, Zeb 1/2, and ALDH1, as well as stem cell characteristics. The clinical onset of claudin-low breast cancer is at menopause age, and its histological grade is higher. This subtype of breast cancer is more likely to spread to lymph nodes than other subtypes. Claudin-low breast cancer is frequently accompanied by increased invasiveness and a poor prognosis. According to a clinical retrospective analysis, claudin-low breast cancer can achieve low pathological complete remission. At present, although several therapeutic targets of claudin-low breast cancer have been identified, the effective treatment remains in basic research stages, and no animal studies or clinical trials have been designed. The origin, molecular biological characteristics, pathological characteristics, treatment, and prognosis of CLBC are extensively discussed in this article. This will contribute to a comprehensive understanding of CLBC and serve as the foundation for the individualization of breast cancer treatment.
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Affiliation(s)
- Chenglong Pan
- Department of Pathology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
- Kunming Medical University, Kunming, Yunnan, China
| | - Anqi Xu
- Kunming Medical University, Kunming, Yunnan, China
- Department of Anesthesia, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Xiaoling Ma
- Department of Pathology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
- Kunming Medical University, Kunming, Yunnan, China
| | - Yanfei Yao
- Department of Pathology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
- Kunming Medical University, Kunming, Yunnan, China
| | - Youmei Zhao
- Department of Pathology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
- Kunming Medical University, Kunming, Yunnan, China
| | - Chunyan Wang
- Department of Pathology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Ceshi Chen
- Academy of Biomedical Engineering, Kunming Medical University, Kunming, Yunnan, China
- The Third Affiliated Hospital, Kunming Medical University, Kunming, Yunnan, China
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Recent Advances in the Aging Microenvironment of Breast Cancer. Cancers (Basel) 2022; 14:cancers14204990. [PMID: 36291773 PMCID: PMC9599409 DOI: 10.3390/cancers14204990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 09/29/2022] [Accepted: 09/30/2022] [Indexed: 11/17/2022] Open
Abstract
Simple Summary The incidence of breast cancer has increased rapidly in recent years. Aging is one of the risk factors for advanced breast cancer. More and more studies have been conducted on the influence of the aging microenvironment on breast cancer. In this review, we summarize the effects of physical changes in the aging microenvironment, senescence-associated secretory phenotypes, and senescent stromal cells on the initiation and progression of breast cancer and the underlying mechanisms. In addition, we also discuss potential targets for senotherapeutics and senescence-inducing agents in the aging microenvironment of breast cancer. We hope this review can provide some directions for future research on the aging microenvironment in breast cancer. Abstract Aging is one of the risk factors for advanced breast cancer. With the increasing trend toward population aging, it is important to study the effects of aging on breast cancer in depth. Cellular senescence and changes in the aging microenvironment in vivo are the basis for body aging and death. In this review, we focus on the influence of the aging microenvironment on breast cancer. Increased breast extracellular matrix stiffness in the aging breast extracellular matrix can promote the invasion of breast cancer cells. The role of senescence-associated secretory phenotypes (SASPs) such as interleukin-6 (IL-6), IL-8, and matrix metalloproteases (MMPs), in breast cancer cell proliferation, invasion, and metastasis is worthy of exploration. Furthermore, the impact of senescent fibroblasts, adipocytes, and endothelial cells on the mammary matrix is discussed in detail. We also list potential targets for senotherapeutics and senescence-inducing agents in the aging microenvironment of breast cancer. In conclusion, this review offers an overview of the influence of the aging microenvironment on breast cancer initiation and progression, with the aim of providing some directions for future research on the aging microenvironment in breast cancer.
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Oshi M, Patel A, Wu R, Le L, Tokumaru Y, Yamada A, Yan L, Matsuyama R, Ishikawa T, Endo I, Takabe K. Enhanced immune response outperform aggressive cancer biology and is associated with better survival in triple-negative breast cancer. NPJ Breast Cancer 2022; 8:92. [PMID: 35945417 PMCID: PMC9363489 DOI: 10.1038/s41523-022-00466-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 07/28/2022] [Indexed: 11/24/2022] Open
Abstract
Although the value of tumor-infiltrating lymphocytes is well known, the clinical relevance of an increased immune response, specifically in breast cancer, has not been investigated across large cohorts of patients using computational algorithms. Our hypothesis stated that an enhanced immune response is associated with an improvement in outcomes. To quantify the immune response, we utilized the allograft rejection score correlated with cytolytic activity and with all the other Hallmark immune-related gene sets. The score reflected the amount of infiltrating immune cells that correlated with the immune checkpoint molecule expressions, including CD4+ and CD8+ T cells, T helper type 1 (Th1) and type 2 (Th2) cells, M1 macrophages, B cells, and plasmacytoid dendritic cells (pDC). A high score was associated with high levels of intratumor heterogeneity, homologous recombination defects, mutation rate, histological grade, advanced stage, and lymph node metastasis. Breast malignancy with a high score enriched immune-related gene sets and pro-cancer-related gene sets, including epithelial–mesenchymal transition and KRAS pathway, in ER-positive/HER2-negative and triple-negative breast cancer (TNBC) groups. TNBC had the highest score compared to other subtypes, and was associated with better survival. In conclusion, we found that breast cancer with a high immune response is associated with aggressive cancer biology, but with better survival in TNBC.
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Affiliation(s)
- Masanori Oshi
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA.,Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, 236-0004, Japan
| | - Ankit Patel
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA
| | - Rongrong Wu
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA.,Department of Breast Surgery and Oncology, Tokyo Medical University, Tokyo, 160-8402, Japan
| | - Lan Le
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA
| | - Yoshihisa Tokumaru
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA.,Department of Surgical Oncology, Graduate School of Medicine, Gifu University, 1-1 Yanagido, Gifu, 501-1194, Japan
| | - Akimitsu Yamada
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, 236-0004, Japan
| | - Li Yan
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA
| | - Ryusei Matsuyama
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, 236-0004, Japan
| | - Takashi Ishikawa
- Department of Breast Surgery and Oncology, Tokyo Medical University, Tokyo, 160-8402, Japan
| | - Itaru Endo
- Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, 236-0004, Japan
| | - Kazuaki Takabe
- Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, 14263, USA. .,Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, 236-0004, Japan. .,Department of Breast Surgery and Oncology, Tokyo Medical University, Tokyo, 160-8402, Japan. .,Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, 951-8520, Japan. .,Department of Breast Surgery, Fukushima Medical University School of Medicine, Fukushima, 960-1295, Japan. .,Department of Surgery, Jacobs School of Medicine and Biomedical Sciences, State University of New York, Buffalo, NY, 14263, USA.
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