Title: Explorative genetic study of UBQLN2 and PFN1 in an extended Flanders-Belgian cohort of frontotemporal lobar degeneration patients
Authors: Dillen, Lubina ×
Van Langenhove, Tim
Engelborghs, Sebastiaan
Vandenbulcke, Mathieu
Sarafov, Stayko
Tournev, Ivailo
Merlin, Celine
Cras, Patrick
Vandenberghe, Rik
De Deyn, Peter P
Jordanova, Albena
Cruts, Marc
Van Broeckhoven, Christine
van der Zee, Julie
BELNEU consortium #
Issue Date: Jun-2013
Publisher: Elsevier
Series Title: Neurobiology of aging vol:34 issue:6 pages:1711.e1-5
Article number: S0197-4580(12)00638-0
Abstract: UBQLN2 and PFN1 were recently associated with amyotrophic lateral sclerosis (ALS). We investigated a role for these ALS genes in frontotemporal lobar degeneration (FTLD). We screened 328 FTLD, 17 FTLD-ALS, and 157 ALS patients. Patients originated from Flanders-Belgium except for 26 Bulgarian ALS patients. The frequency of UBQLN2 and PFN1 genetic variants in the FTLD patients was low at 0.30% and 0.91% respectively. Moreover, the biological relevance to disease of the variants was questionable. In UBQLN2, we identified p.S346C outside of the PXX domain in 1 FTLD patient. Yet, a closely located serine substitution, p.S340I, was observed in a neurologically healthy control individual. In PFN1, we observed the previously reported p.E117G mutation in 3 FTLD patients and in 3 control individuals. In the ALS patient cohort, we detected UBQLN2 variants in 1.27% of patients. These involved 2 novel UBQLN2 missense mutations, p.S400G and p.P440L, that were also present in unaffected relatives (i.e., the p.S400G carrier's son [70 years] and daughter [65 years]) and the p.P440L carrier's mother (67 years). No mutations were observed in PFN1. In summary, we conclude that genetic variations in UBQLN2 and PFN1 in a predominantly Flanders-Belgian cohort of FTLD and ALS patients are extremely rare.
ISSN: 0197-4580
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Research Group Psychiatry
× corresponding author
# (joint) last author

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