Groundbreaking study identifies FAM3C as a key regulator of breast cancer progression

NewsGuard 100/100 Score

A groundbreaking study conducted by Professor Jiyoung Park and her research team in the Department of Biological Sciences at UNIST has identified FAM3C, a metabolism-regulating signaling molecule produced by cancer-associated adipocytes (CAAs), as a key regulator of breast cancer progression within the tumor microenvironment (TME). The findings, published in the prestigious academic journal Cancer Research, shed light on the potential for targeted therapies in the treatment of breast cancer.

The study demonstrates that overexpression of FAM3C in cultured adipocytes significantly reduces cell death in both adipocytes and co-cultured breast cancer cells, while suppressing markers of fibrosis. Conversely, depletion of FAM3C in CAAs leads to adipocyte-mesenchymal transition (AMT) and increased fibrosis within the TME. The research team also discovered that breast cancer cells stimulate the expression of FAM3C in adipocytes through TGF-β signaling, which can be inhibited by a TGF-β-neutralizing antibody.

In a genetically engineered mouse model of breast cancer, early knockdown of FAM3C in CAAs significantly inhibited primary and metastatic tumor growth. Furthermore, elevated levels of circulating FAM3C were observed in patients with metastatic breast cancer compared to those with non-metastatic breast cancer.

These findings suggest that therapeutic inhibition of FAM3C expression in CAAs during early tumor development could hold promise as a novel approach in the treatment of patients with breast cancer. Understanding the role of cancer-associated adipocytes and their secretory molecules, such as FAM3C, opens up new avenues for the development of early diagnosis markers and targeted treatments for breast cancer."

Professor Jiyoung Park, Department of Biological Sciences at UNIST

The findings of this study have been published in the online version of Cancer Research on December 20, 2023. This research was conducted with the support of the National Research Foundation of Korea (NRF), funded by the Ministry of Science and ICT (MSIT), the Basic Science Research Program, as well as a grant of the Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI), funded by the Ministry of Health & Welfare, Republic of Korea.

Source:
Journal reference:

Kim, S., et al. (2023). FAM3C in cancer-associated adipocytes promotes breast cancer cell survival and metastasis. Cancer Research. doi.org/10.1158/0008-5472.can-23-1641.

Comments

The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of News Medical.
Post a new comment
Post

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.

You might also like...
DASH diet may lower the risk of cardiovascular disease in breast cancer survivors