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Durigova A.,Service dOncologie Medicale | Jacot W.,Service dOncologie Medicale | Pouderoux S.,Service dOncologie Medicale | Roques S.,Laboratoire Of Biologie Specialisee Et Doncoge Netique | And 2 more authors.
Annales de Biologie Clinique | Year: 2012

Iron plays a fundamental role in biology and its concentration in living organisms is regulated very precisely. Many molecules of storage and transportation are used to maintain the intracellular homeostasis. Cancer cells have alterations in this balance. Recent studies have shown that breast cancer cells present abnormal expression of several proteins such as hepcidin and ferroportin. A prognostic impact of these alterations has been reported in patients with breast cancer. Regulatory molecules of iron metabolism could become therapeutic targets. This is an innovative approach that has emerged for treating a cancer which, despite advances in treatment and the emergence of targeted therapies, remains the leading cause of cancer death in women.

Firmin N.,ICM Val dAurelle | Lamy P.-J.,Laboratoire Of Biologie Specialisee Et Doncoge Netique | Romieu G.,ICM Val dAurelle | Jacot W.,ICM Val dAurelle
Bulletin du Cancer | Year: 2014

There is a recent increase in interest of vitamin D and breast cancer, facing the number of publications on the subject. This increase have several reasons, on the one hand, vitamin D deficiency is more and more prevalent and, on the other hand, there are new data that highlights the extra-bone effects of vitamin D, especially in breast cancer, the vitamin D is involved in the breast cancer risk factor, the prognosis, and the interaction with breast cancer treatments. This combination between vitamin D deficiency and breast cancer is extremely usual, and combined with all cancer clinical parameters: the incidence, the tumour biology, the clinical presentation, the prognosis, and the antineoplastic treatment tolerance. This vitamin D deficiency is increased after adjuvant cancer treatments. And yet, this problem increases bone metabolism disruptions in breast cancer patients, inducing osteoporotic risk at long time, even though this population is curable. This problem is therefore serious in the adjuvant breast cancer treatment. Unfortunately, in this population, the current recommendations are clearly insufficient, and the current randomized clinical trial results would contribute to define the best way to correct the vitamin D deficiency, quickly and secure. © John Libbey Eurotext.

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