Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Decoding the Hidden Messengers: Proteomic Profiling of Exosomes in Mammary Cancer Research

Version 1 : Received: 20 September 2023 / Approved: 20 September 2023 / Online: 21 September 2023 (08:24:37 CEST)

A peer-reviewed article of this Preprint also exists.

Novais, A.A.; Tamarindo, G.H.; Chuffa, L.G.A.; Zuccari, D.A.P.C. Decoding Hidden Messengers: Proteomic Profiling of Exosomes in Mammary Cancer Research. Biomedicines 2023, 11, 2839. Novais, A.A.; Tamarindo, G.H.; Chuffa, L.G.A.; Zuccari, D.A.P.C. Decoding Hidden Messengers: Proteomic Profiling of Exosomes in Mammary Cancer Research. Biomedicines 2023, 11, 2839.

Abstract

Cancer is a complex and heterogeneous disease, influenced by various factors that affect its progression and response to treatment. Although histopathological diagnosis is crucial for identifying and classifying cancer, it may not accurately predict the disease's development and evolution in all cases. To address this limitation, liquid biopsy has emerged as a valuable tool, enabling a more precise and non-invasive analysis of cancer. Liquid biopsy offers the ability to detect tumor DNA fragments, circulating tumor cells, and exosomes released by cancer cells into the bloodstream. Exosomes, in particular, have attracted significant attention in cancer research due to their specific protein composition, which can provide valuable insights into the disease. The protein profile of exosomes often differs from that of normal cells, reflecting the unique molecular characteristics of cancer. Analyzing these proteins can help identify cancer-associated markers that play critical roles in tumor progression, invasion, and metastasis. Ongoing research and clinical validation are essential to advance and effectively utilize protein biomarkers in cancer. Nevertheless, their potential to improve diagnosis and treatment is highly promising. This review discuss several exosome proteins of interest in breast cancer, particularly focusing on studies conducted in mammary tissue and cell lines in humans and experimental animals. Unfortunately, the studies conducted in the canine species are scarce. This emphasis sheds light on the limited research available in this field. Additionally, we present a curated selection of studies that have explored exosomal proteins as potential biomarkers, aiming to achieve the aforementioned benefits in breast cancer diagnosis, prognosis, monitoring, and treatment.

Keywords

extracellular vesicles; exosomes; proteomics; signaling molecules; biomarkers; mammary neoplasia

Subject

Biology and Life Sciences, Animal Science, Veterinary Science and Zoology

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