Proteomic analysis of TGFβ‐induced A549 secretome identifies putative regulators of epithelial–mesenchymal transition. (9th March 2021)

• Record Type: Journal Article
• Authors: Sharma, Akshay; Upadhyay, Vishal; Sarkar, Monika; Mishra, Mukul; Thacker, Gatha; Trivedi, Arun Kumar
• Is Part Of: Biotechnology and applied biochemistry. Volume 69:Number 2(2022)
• Page Start: 442
• Page End: 450
• Publication Date: 2021-03-09
• Subjects: A549 -- EMT -- proteomics -- secretome -- TGF‐β; Biotechnology -- Periodicals; Biochemical engineering -- Periodicals; Biochemistry -- Periodicals; Biochemistry -- Periodicals; Genetic Techniques -- Periodicals; Microbiological Techniques -- Periodicals; 660.6
• DOI: 10.1002/bab.2121
• Languages: English
• ISSNs: 0885-4513

Abstract

Abstract: Imparting epithelial to mesenchymal transition (EMT) during cellular transformation, a major driving force behind tumor progression, is one of the notorious oncogenic activities of transforming growth factor β (TGFβ); however, the secretary factors released during TGFβ‐induced EMT that may have role in potentiating EMT and tumor progression are poorly known. This study was undertaken to identify such secreted protein factors from TGFβ‐induced A549 cells cultured in serum‐free chemically defined medium (Freestyle TM ) using Matrix Assisted Laser Desorption Ionization‐Time of flight/Time of flight (MALDI‐TOF/TOF) mass spectrometry. We identified some of the potential factors such as ESR, ANXA2, ALDH1A, TGFβ‐induced protein ig‐h3, and PAI‐1 that were not only secreted but some were also elevated in TGFβ‐induced A549 cells. Interestingly, these factors are widely reported to play crucial role in EMT induction and progression, which not only validates our findings but also opens avenues for further investigation, if upon secretion they act exogenously through certain receptors to potentiate cellular signaling involved in EMT induction and tumor progression. Abstract : Graphical abstract