Bovine Milk Exosomes Affect Proliferation and Protect Macrophages against Cisplatin-Induced Cytotoxicity
- 2 October 2020
- journal article
- research article
- Published by Taylor & Francis Ltd in Immunological Investigations
- Vol. 49 (7), 711-725
- https://doi.org/10.1080/08820139.2020.1769647
Abstract
Background Exosomes are extracellular vesicles involved in intercellular communication. The objectives were to characterize bovine milk exosomes (BME) and determine its effect on RAW 264.7 macrophages. Methods BME were isolated using differential centrifugation and characterized by particle size and the presence of exosomal markers Alix, TSG101, and CD81. The effect ofin vitrodigestion and different pH on the stability of BME was investigated. The biological activity of BME in RAW 264.7 macrophages was conducted by assessing proliferation and cell cycle. Moreover, the protective effect of exosomes on cisplatin-induced cytotoxicity was evaluated. Results BME have an average particle size of 106.8 +/- 3.4 nm and expressed Alix, TSG101, and CD81. TSG101 was detected after digestion and exposure to different pH values. Cell-cycle analysis showed that BME reduced the percentage of apoptotic cells while arresting the cells in G2/M phase accompanied by differential expression of proliferation markers p53, p21, cyclin D1, and beta-catenin. Exosomes protected macrophages against cisplatin-induced cytotoxicity. Conclusion Our results showed for the first time the effect of BME on the proliferation of RAW 264.7 macrophages and its protective effect against chemotherapeutic drug-induced cytotoxicity. Potential effect of BME on immune system must be studied.Funding Information
- USDA-NIFA (HATCH 1010230)
This publication has 38 references indexed in Scilit:
- Protecting normal cells from the cytotoxicity of chemotherapyCell Cycle, 2012
- The many faces and functions of β-cateninThe EMBO Journal, 2012
- Cdk2-dependent phosphorylation of p21 regulates the role of Cdk2 in cisplatin cytotoxicityAmerican Journal of Physiology-Renal Physiology, 2011
- MicroRNAs: miRRORS of health and diseaseTranslational Research, 2011
- ExoCarta: A compendium of exosomal proteins and RNAProteomics, 2009
- Bovine milk in human nutrition – a reviewLipids in Health and Disease, 2007
- The regulation of cyclin D1 degradation: roles in cancer development and the potential for therapeutic inventionMolecular Cancer, 2007
- Antiproliferative Activity of Cisplatin Detected by CFSE in p53-Proficient and p53-Deficient CellsImmunological Investigations, 2007
- Effects of orally administered bovine lactoferrin and lactoperoxidase on influenza virus infection in miceJournal of Medical Microbiology, 2005
- Cell cycle-independent induction of D1 and D2 cyclin expression, but not cyclin–Cdk complex formation or Rb phosphorylation, by IFNγ in macrophagesBiochimica et Biophysica Acta (BBA) - Molecular Cell Research, 2000