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Chromosome Segregation in Disease Lab

Sara Carvalhal, PhD

About the Lab

The “Chromosome Segregation in Disease” Lab studies how the processes involved in chromosome segregation contribute to the etiology of human diseases, particularly rare syndromes.

Several studies, including our own, unraveledthat many genes identified in developmental disorders with clinical manifestations in the brain (e.g. microcephaly) encode proteins involved in mitotic machinery or functions related to the cell cycle regulation. We aim to understand the reasons that renders brain development more susceptible to defects in the mitotic machinery.
Also, age-associated neurodegenerative diseases are associated with aneuploidy. Yet, remains unclear the routes to aneuploidy that underlie these pathologies, including neurodegenerative rare syndromes.

See more about the lab here.

Team Members

Xavier Jorge, MSc Student

Beatriz Rodrigues, BSc Student

Selected Publications

Carvalhal, S#; Bader, I#.; Rooimans, M.A.; Oostra, A.B.; Balk, J.A.; Feichtinger, R.J.; Beichler, C.; Speicher, M.R.; van Hagen, J.M.; Waisfisz, Q.; van Haelst, M.; Bruijn, M.; Tavares, A.;  Mayr, J.A.; Wolthuis, R.M.F.; Oliveira, R. A. * and de Lange, J. * (2022) Biallelic BUB1 mutations cause microcephaly, developmental delay, and variable effects on cohesion and chromosome segregation. Science Advances 8, 10.1126/sciadv.abk0114 # Co-first authors * co-corresponding authors

Carvalhal et al. A quantitative analysis of cohesin decay in mitotic fidelity. (2018). Journal of Cell Biology. Selected for a Special Collection: Chromosome organization and segregation. https://pubmed.ncbi.nlm.nih.gov/30002073/

CARVALHAL, S; Stevense, M.; et al. Jessberger, R.; Griffis, E.R. 2017. ALADIN is required for the production of fertile mouse oocytes. Mol Biol Cell. 28 (19): 2470-2478. PMID: 28768824. Co-first authors. Co-corresponding author. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5597320/

CARVALHAL, S; et al. Griffis, E.R. 2015. The nucleoporin ALADIN regulates Aurora A localization to ensure robust mitotic spindle formation. Mol Biol Cell. 26 (19): 3424-3438. PMID: 26246606. https://europepmc.org/article/MED/26246606

 

Projects

Project: Unraveling the contribution of mitotic failure in rare syndromes with microcephaly susceptibility
Period of execution: Dec 2021 to present
PI: Sara Carvalhal
Funding agency: Maratona da Saúde


Project: Explore the mechanisms behind neurodegenerative rare disorders – is mitosis on the aetiology of these diseases?
Period of execution:  2022 to present
PI: Sara Carvalhal
Funding agency: AD-ABC

Awards

2022 | 2021 L’Oréal Portugal Honor Medals for Women in Science

2021 | Maratona da Saúde, Portugal, to Sara Carvalhal

2020 | CEEC salary position, to Sara Carvalhal

Funding Agencies

Fundação para a Ciência a TecnologiaMaratona da Saúde

Events to Disseminate

Additional Info

Sara Carvalhal, PhD
Junior Principal Investigator

©2021 Algarve Biomedical Center Research Institute

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