Metastatic breast cancer is a life-threatening stage of cancer and is the leading cause of death in advanced breast cancer patients. Estrogen signaling and the estrogen receptor (ER) are implicated in breast cancer progression, and the majority of the human breast cancers start out as estrogen dependent. Accumulating evidence suggests that ER signaling is complex, involving coregulatory protein...

Extracellular vesicles such as exosomes and microvesicles (MVs) are shed by cancer cells, are detected in the plasma of cancer patients, and promote cancer progression, but the molecular mechanisms regulating their production are not well understood. Intratumoral hypoxia is common in advanced breast cancers and is associated with an increased risk of metastasis and patient mortality that is med...

Breast cancer is one of the most common types of cancer in females worldwide, and metastasis to bone is an important characteristic of malignancy. The present study aimed to investigate the molecular mechanism of breast cancer to bone metastasis of secreted protein acidic and rich in cysteine (SPARC). Immunohistochemistry was performed to examine the expression of SPARC in primary breast tumors...

Metastasis is a challenging clinical problem and the primary cause of death in breast cancer patients. However, there is no therapeutic agent against metastasis of breast cancer cells. Here we report that phloroglucinol, a natural phlorotannin component of brown algae suppresses metastatic ability of breast cancer cells. Treatment with phloroglucinol effectively inhibited mesenchymal phenotypes...

Worldwide, breast cancer is the most frequent cancer diagnosed in women and is the second-most leading cause of cancer related deaths in women (Jemal, Bray et al. 2011). Death from breast cancer is most often the result of the spread of the primary tumour to distant sites, where the cancer cells lodge and develop into metastases. Depending on the site of the metastasis, the patient may live for...

Previous studies have shown that the rate of breast cancer metastasis correlates with the expression of vacuolar H(+)-ATPases (V-ATPases). However, how V-ATPase is involved in breast cancer metastasis remains unknown. Our previous study showed that Atp6v1c1-depleted osteoclasts did not form organized actin rings and that Atp6v1c1 co-localizes with F-actin. In this study, we found that the norma...

BACKGROUND: Reproductive tract sarcomas metastasizing to the breast are uncommon. To our knowledge, metastasis of vaginal leiomyosarcoma to the breast has not been previously reported in the literature. CASE REPORT: We present the first report of a FIGO stage IV primary vaginal leiomyosarcoma with metastases to the lung and left breast. Treatment included neoadjuvant chemotherapy followed by s...

PURPOSE Currently, there are no definite biomarkers of triple-negative breast cancer. The study aims to identify the metastasis-associated proteins of triple-negative breast tumors. EXPERIMENTAL DESIGN A murine metastatic breast cancer model has been established by using TA2 mice. Parallel proteomic analyses were done on a murine metastatic breast cancer model and its primary breast cancer us...

Cancer initiation and progression is a challenging scenario through developmental processes, which may be more complicated by occurrence of metastasis. Basically, diverse genetic alterations, including mutations, formation of truncated proteins and related pathways play key roles either in diagnosis or the most influential therapeutic purposes. ...