Complete solubilization of mammalian cells in lysates

Abstract

In conventional cell lysate protocols, cell debris is typically discarded to obtain a cleaner lysate. However, this approach has limitations, as it may overlook vital cellular components. By discarding cell debris, researchers may inadvertently exclude crucial elements. Retaining all cellular components offers several advantages for studying molecular biology within various cellular compartments. Firstly, it provides a more accurate representation of the cellular environment. Secondly, it enables the study of complex cellular interactions, including those involving cellular structures and signaling pathways associated with debris. This shift in perspective highlights the importance of a holistic approach to lysate preparation. By obtaining lysates that include all cellular components, researchers can gain deeper insights into cellular processes, leading to more accurate data and a better understanding of cellular function and dysfunction. This study aimed to develop a protocol for the preparation of total cell lysates that retain all cellular components, including debris. Our method involves: • A three-step solubilization process using a combination of detergents, saccharides, and chelators, coupled with sonication, in contrast to the classical one-step approach using an all-detergent cocktail. • A comprehensive strategy ensuring the solubilization of all cellular components, providing a more complete lysate for analysis.

Keywords

• Whole cell lysates preparation