4.6 Review

Exploring Large MAF Transcription Factors: Functions, Pathology, and Mouse Models with Point Mutations

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GENES
卷 14, 期 10, 页码 -

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MDPI
DOI: 10.3390/genes14101883

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large MAF transcription factors; c-MAF; MAFA; MAFB; point-mutation model mouse

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This review provides a detailed exploration of the functions of MAF transcription factors studied in vivo, as well as the pathology of human patients and mouse models with point mutations in c-MAF, MAFA, and MAFB. The generation of genetically modified mice lacking these factors has allowed for analysis of their phenotypes and has highlighted their potential as models for studying the pathophysiology and development of targeted therapies for diseases caused by MAF mutations.
Large musculoaponeurotic fibrosarcoma (MAF) transcription factors contain acidic, basic, and leucine zipper regions. Four types of MAF have been elucidated in mice and humans, namely c-MAF, MAFA, MAFB, and NRL. This review aimed to elaborate on the functions of MAF transcription factors that have been studied in vivo so far, as well as describe the pathology of human patients and corresponding mouse models with c-MAF, MAFA, and MAFB point mutations. To identify the functions of MAF transcription factors in vivo, we generated genetically modified mice lacking c-MAF, MAFA, and MAFB and analyzed their phenotypes. Further, in recent years, c-MAF, MAFA, and MAFB have been identified as causative genes underpinning many rare diseases. Careful observation of human patients and animal models is important to examine the pathophysiological mechanisms underlying these conditions for targeted therapies. Murine models exhibit phenotypes similar to those of human patients with c-MAF, MAFA, and MAFB mutations. Therefore, generating these animal models emphasizes their usefulness for research uncovering the pathophysiology of point mutations in MAF transcription factors and the development of etiology-based therapies.

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