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Wafa Bouleftour, Karima Boussoualim, Sandrine Sotton, Cecile Vassal, Thierry Thomas, Nicolas Magné, and Aline Guillot

Prostate cancer (Pca) is the most commonly diagnosed cancer affecting men in France. Before the age of 75 years old, 1 in 8 French men will have Pca. Androgen deprivation therapies (ADT) remain the standard of care. Such therapies induces significant bone loss. Bone-remodelling cycle depends on the androgen synthesis signalling pathways. Furthermore, age-specific hormonal decline plays a key role in the decrease in bone mass. As a result, the older the patients, the more likely they are to have osteoporosis if they are treated with hormone therapy. Their risk of osteoporotic fracture has an impact on their quality of live and their capacity of independent living. In recent years, newer hormone therapies (acetate abiraterone, enzalutamide, apalutamide and darolutamide) have proved efficient in metastatic castration-resistant Pca (mCRPC) patients as well as in hormone naïve patients, and actually in non-metastatic diagnosis. The combination of these treatments with ADT highly inhibit androgen production pathways. They are prescribed to aged patients undergoing bone density loss after first generation anti-androgen treatment. Specific recommendations for bone health management in Pca patients are currently lacking. To date, bone mineral density in patients treated with second-generation hormone therapy has never been assessed in a prospective study. This review aims at reviewing what is known about the impact of second-generation hormonotherapy on bone microenvironment.

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Cyrus Chargari, Lionel Védrine, Oliver Bauduceau, Sylvestre Le Moulec, Bernard Ceccaldi, and Nicolas Magné

Recurrent meningiomas constitute an uncommon but significant problem after standard therapy failure. Speculation that meningiomas may be subject to endocrine influence was supported by both immunohistochemical analyses and epidemiological data. Therefore, alternative strategies such as endocrine therapy have been suggested. Although evidence of consistent findings for the role of specific hormonal exposures is mounting, there are numerous discrepancies about the mitogenic effect of hormonal manipulation on meningioma cells. A better understanding of the molecular mechanisms involved in meningioma pathogenesis may not only lead to the identification of novel diagnostic and prognostic markers but may also facilitate the development of new pathogenesis-based targeted strategies. This review of literature aims to summarize the present state of the art of endocrine therapy in the management of meningiomas, in order to establish whether hormonotherapy could be included in the therapeutic strategy for unresectable and/or progressive tumours in previously irradiated meningioma patients.