TY - JOUR A1 - Jung, Michaela A1 - Mertens, Christina A1 - Tomat, Elisa A1 - BrĂ¼ne, Bernhard T1 - Iron as a central player and promising target in cancer progression T2 - International journal of molecular sciences N2 - Iron is an essential element for virtually all organisms. On the one hand, it facilitates cell proliferation and growth. On the other hand, iron may be detrimental due to its redox abilities, thereby contributing to free radical formation, which in turn may provoke oxidative stress and DNA damage. Iron also plays a crucial role in tumor progression and metastasis due to its major function in tumor cell survival and reprogramming of the tumor microenvironment. Therefore, pathways of iron acquisition, export, and storage are often perturbed in cancers, suggesting that targeting iron metabolic pathways might represent opportunities towards innovative approaches in cancer treatment. Recent evidence points to a crucial role of tumor-associated macrophages (TAMs) as a source of iron within the tumor microenvironment, implying that specifically targeting the TAM iron pool might add to the efficacy of tumor therapy. Here, we provide a brief summary of tumor cell iron metabolism and updated molecular mechanisms that regulate cellular and systemic iron homeostasis with regard to the development of cancer. Since iron adds to shaping major hallmarks of cancer, we emphasize innovative therapeutic strategies to address the iron pool of tumor cells or cells of the tumor microenvironment for the treatment of cancer. KW - iron homeostasis KW - lipocalin-2 KW - macrophage polarization KW - tumor progression KW - iron chelators Y1 - 2019 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/49073 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-490739 SN - 1422-0067 SN - 1661-6596 N1 - This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0). VL - 20 IS - 2, Art. 273 SP - 1 EP - 18 PB - Molecular Diversity Preservation International CY - Basel ER -