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Figueroa RJ, Carrasco-Avino G, Wichmann IA, Lange M, Owen GI, Siekmann AF, Corvalán AH, Opazo JC, Amigo JD. Reprimo tissue-specific expression pattern is conserved between zebrafish and human. PLoS One 2017; 12:e0178274. [PMID: 28562620 PMCID: PMC5451059 DOI: 10.1371/journal.pone.0178274] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 05/10/2017] [Indexed: 01/28/2023] Open
Abstract
Reprimo (RPRM), a member of the RPRM gene family, is a tumor-suppressor gene involved in the regulation of the p53-mediated cell cycle arrest at G2/M. RPRM has been associated with malignant tumor progression and proposed as a potential biomarker for early cancer detection. However, the expression and role of RPRM, as well as its family, are poorly understood and their physiology is as yet unstudied. In this scenario, a model system like the zebrafish could serve to dissect the role of the RPRM family members in vivo. Phylogenetic analysis reveals that RPRM and RPRML have been differentially retained by most species throughout vertebrate evolution, yet RPRM3 has been retained only in a small group of distantly related species, including zebrafish. Herein, we characterized the spatiotemporal expression of RPRM (present in zebrafish as an infraclass duplication rprma/rprmb), RPRML and RPRM3 in the zebrafish. By whole-mount in situ hybridization (WISH) and fluorescent in situ hybridization (FISH), we demonstrate that rprm (rprma/rprmb) and rprml show a similar spatiotemporal expression profile during zebrafish development. At early developmental stages rprmb is expressed in somites. After one day post-fertilization, rprm (rprma/rprmb) and rprml are expressed in the notochord, brain, blood vessels and digestive tube. On the other hand, rprm3 shows the most unique expression profile, being expressed only in the central nervous system (CNS). We assessed the expression patterns of RPRM gene transcripts in adult zebrafish and human RPRM protein product in tissue samples by RT-qPCR and immunohistochemistry (IHC) staining, respectively. Strikingly, tissue-specific expression patterns of the RPRM transcripts and protein are conserved between zebrafish and humans. We propose the zebrafish as a powerful tool to elucidate the both physiological and pathological roles of the RPRM gene family.
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Affiliation(s)
- Ricardo J. Figueroa
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Gonzalo Carrasco-Avino
- Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile
- Pathology Department, Hospital Clínico Universidad de Chile, Santiago, Chile
| | - Ignacio A. Wichmann
- Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile
- Departamento de Oncología y Hematología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Martin Lange
- Max Planck Institute for Molecular Biomedicine, Muenster, Germany
| | - Gareth I. Owen
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile
- Departamento de Oncología y Hematología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Center UC for Investigation in Oncology (CITO), Pontificia Universidad Católica de Chile, Santiago, Chile
| | | | - Alejandro H. Corvalán
- Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile
- Departamento de Oncología y Hematología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
- Center UC for Investigation in Oncology (CITO), Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Juan C. Opazo
- Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Julio D. Amigo
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- * E-mail:
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