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Title: Phylogenetic and Expression Analysis of Fos Transcription Factors in Zebrafish.
Austin Authors: Kubra, Khadizatul ;Gaddu, Gurveer K ;Liongue, Clifford ;Heidary, Somayyeh ;Ward, Alister C ;Dhillon, Amardeep S ;Basheer, Faiza 
Affiliation: School of Cancer Medicine, LaTrobe University, Melbourne, VIC 3086, Australia
School of Medicine, Deakin University, Geelong, VIC 3216, Australia
Institute of Mental and Physical Health and Clinical Translation, Deakin University, Geelong, VIC 3216, Australia
Olivia Newton-John Cancer Research Institute, Melbourne, VIC 3084, Australia
Issue Date: 3-Sep-2022
Date: 2022
Publication information: International Journal of Molecular Sciences 2022; 23(17)
Abstract: Members of the FOS protein family regulate gene expression responses to a multitude of extracellular signals and are dysregulated in several pathological states. Whilst mouse genetic models have provided key insights into the tissue-specific functions of these proteins in vivo, little is known about their roles during early vertebrate embryonic development. This study examined the potential of using zebrafish as a model for such studies and, more broadly, for investigating the mechanisms regulating the functions of Fos proteins in vivo. Through phylogenetic and sequence analysis, we identified six zebrafish FOS orthologues, fosaa, fosab, fosb, fosl1a, fosl1b, and fosl2, which show high conservation in key regulatory domains and post-translational modification sites compared to their equivalent human proteins. During embryogenesis, zebrafish fos genes exhibit both overlapping and distinct spatiotemporal patterns of expression in specific cell types and tissues. Most fos genes are also expressed in a variety of adult zebrafish tissues. As in humans, we also found that expression of zebrafish FOS orthologs is induced by oncogenic BRAF-ERK signalling in zebrafish melanomas. These findings suggest that zebrafish represent an alternate model to mice for investigating the regulation and functions of Fos proteins in vertebrate embryonic and adult tissues, and cancer.
DOI: 10.3390/ijms231710098
ORCID: 0000-0002-1646-4905
Journal: International journal of molecular sciences
PubMed URL: 36077499
Type: text
Subjects: Fos
activator protein-1
transcription factor
Appears in Collections:Journal articles

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