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- Title
DUX4 Role in Normal Physiology and in FSHD Muscular Dystrophy.
- Authors
Mocciaro, Emanuele; Runfola, Valeria; Ghezzi, Paola; Pannese, Maria; Gabellini, Davide
- Abstract
In the last decade, the sequence-specific transcription factor double homeobox 4 (DUX4) has gone from being an obscure entity to being a key factor in important physiological and pathological processes. We now know that expression of DUX4 is highly regulated and restricted to the early steps of embryonic development, where DUX4 is involved in transcriptional activation of the zygotic genome. While DUX4 is epigenetically silenced in most somatic tissues of healthy humans, its aberrant reactivation is associated with several diseases, including cancer, viral infection and facioscapulohumeral muscular dystrophy (FSHD). DUX4 is also translocated, giving rise to chimeric oncogenic proteins at the basis of sarcoma and leukemia forms. Hence, understanding how DUX4 is regulated and performs its activity could provide relevant information, not only to further our knowledge of human embryonic development regulation, but also to develop therapeutic approaches for the diseases associated with DUX4. Here, we summarize current knowledge on the cellular and molecular processes regulated by DUX4 with a special emphasis on FSHD muscular dystrophy.
- Subjects
MUSCULAR dystrophy; FACIOSCAPULOHUMERAL muscular dystrophy; ONCOGENIC proteins; PHYSIOLOGY; CHIMERIC proteins; EMBRYOLOGY
- Publication
Cells (2073-4409), 2021, Vol 10, Issue 12, p3322
- ISSN
2073-4409
- Publication type
Article
- DOI
10.3390/cells10123322