Title : Distinct TP53 Mutation Subtypes Differentially Influence Cellular Iron Metabolism.

Pub. Date : 2019 Sep 7

PMID : 31500291






8 Functional Relationships(s)
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1 Distinct TP53 Mutation Subtypes Differentially Influence Cellular Iron Metabolism. Iron tumor protein p53 Homo sapiens
2 The most commonly mutated gene in all human cancers is the tumor suppressor gene TP53; however, in addition to the loss of tumor suppressor functions, mutations in TP53 can also promote cancer progression by altering cellular iron acquisition and metabolism. Iron tumor protein p53 Homo sapiens
3 The most commonly mutated gene in all human cancers is the tumor suppressor gene TP53; however, in addition to the loss of tumor suppressor functions, mutations in TP53 can also promote cancer progression by altering cellular iron acquisition and metabolism. Iron tumor protein p53 Homo sapiens
4 The primary objective of this work was to determine how TP53 mutation status influences the molecular control of iron homeostasis. Iron tumor protein p53 Homo sapiens
5 The introduction of distinct TP53 mutation types alone was sufficient to disrupt cellular iron metabolism. Iron tumor protein p53 Homo sapiens
6 In response to changes in iron availability, cells harboring either a wild-type TP53 or R273H TP53 mutation displayed canonical IRP-mediated responses, but neither IRP1 RNA binding activity nor IRP2 protein levels were affected by changes in iron status in cells harboring the R175H mutation type. Iron tumor protein p53 Homo sapiens
7 In response to changes in iron availability, cells harboring either a wild-type TP53 or R273H TP53 mutation displayed canonical IRP-mediated responses, but neither IRP1 RNA binding activity nor IRP2 protein levels were affected by changes in iron status in cells harboring the R175H mutation type. Iron tumor protein p53 Homo sapiens
8 These findings suggest a novel, IRP-independent mode of iron regulation in cells expressing distinct TP53 mutations. Iron tumor protein p53 Homo sapiens