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Drosophila as a Model Organism to Understand the Effects during Development of TFIIH-Related Human Diseases

Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca Morelos 62250, Mexico
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Int. J. Mol. Sci. 2020, 21(2), 630; https://doi.org/10.3390/ijms21020630
Received: 13 November 2019 / Revised: 2 December 2019 / Accepted: 2 December 2019 / Published: 17 January 2020
(This article belongs to the Special Issue Role of Drosophila in Human Disease Research)
Human mutations in the transcription and nucleotide excision repair (NER) factor TFIIH are linked with three human syndromes: xeroderma pigmentosum (XP), trichothiodystrophy (TTD) and Cockayne syndrome (CS). In particular, different mutations in the XPB, XPD and p8 subunits of TFIIH may cause one or a combination of these syndromes, and some of these mutations are also related to cancer. The participation of TFIIH in NER and transcription makes it difficult to interpret the different manifestations observed in patients, particularly since some of these phenotypes may be related to problems during development. TFIIH is present in all eukaryotic cells, and its functions in transcription and DNA repair are conserved. Therefore, Drosophila has been a useful model organism for the interpretation of different phenotypes during development as well as the understanding of the dynamics of this complex. Interestingly, phenotypes similar to those observed in humans caused by mutations in the TFIIH subunits are present in mutant flies, allowing the study of TFIIH in different developmental processes. Furthermore, studies performed in Drosophila of mutations in different subunits of TFIIH that have not been linked to any human diseases, probably because they are more deleterious, have revealed its roles in differentiation and cell death. In this review, different achievements made through studies in the fly to understand the functions of TFIIH during development and its relationship with human diseases are analysed and discussed. View Full-Text
Keywords: Drosophila; TFIIH; human syndromes; Cancer; development Drosophila; TFIIH; human syndromes; Cancer; development
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Zurita, M.; Murillo-Maldonado, J.M. Drosophila as a Model Organism to Understand the Effects during Development of TFIIH-Related Human Diseases. Int. J. Mol. Sci. 2020, 21, 630.

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