title: Quantitative proteomics reveals middle infrared radiation-interfered networks in breast cancer cells.
abstract: Breast cancer is one of the leading cancer-related causes of death worldwide. Treatment of triple-negative breast cancer (TNBC) is complex and challenging, especially when metastasis has developed. In this study, we applied infrared radiation as an alternative approach for the treatment of TNBC. We used middle infrared (MIR) with a wavelength range of 3-5 μm to irradiate breast cancer cells. MIR significantly inhibited cell proliferation in several breast cancer cells but did not affect the growth of normal breast epithelial cells. We performed iTRAQ-coupled LC-MS/MS analysis to investigate the MIR-triggered molecular mechanisms in breast cancer cells. A total of 1749 proteins were identified, quantified, and subjected to functional enrichment analysis. From the constructed functionally enriched network, we confirmed that MIR caused G2/M cell cycle arrest, remodeled the microtubule network to an astral pole arrangement, altered the actin filament formation and focal adhesion molecule localization, and reduced cell migration activity and invasion ability. Our results reveal the coordinative effects of MIR-regulated physiological responses in concentrated networks, demonstrating the potential implementation of infrared radiation in breast cancer therapy.
authors.affiliation: Department of Life Science, National Taiwan University , Taipei 10617, Taiwan.
authors.forename: Hsin-Yi
authors.initials: HY
authors.lastname: Chang
authors.forename: Ming-Hua
authors.initials: MH
authors.lastname: Li
authors.forename: Tsui-Chin
authors.initials: TC
authors.lastname: Huang
authors.forename: Chia-Lang
authors.initials: CL
authors.lastname: Hsu
authors.forename: Shang-Ru
authors.initials: SR
authors.lastname: Tsai
authors.forename: Si-Chen
authors.initials: SC
authors.lastname: Lee
authors.forename: Hsuan-Cheng
authors.initials: HC
authors.lastname: Huang
authors.forename: Hsueh-Fen
authors.initials: HF
authors.lastname: Juan
mesh_terms: D002455:Cell Division; D045744:Cell Line, Tumor; D002853:Chromatography, Liquid; D005260:Female; D006801:Humans; D007259:Infrared Rays; D040901:Proteomics; D053719:Tandem Mass Spectrometry; D064726:Triple Negative Breast Neoplasms / Q000378:metabolism* / Q000473:pathology
keywords: cell cycle arrest; cytoskeleton remodeling; iTRAQ; infrared radiation; triple negative breast cancer