Identification of TNFRSF-1B as a novel modifier gene in familial combined hyperlipidemia

J.M.W. Geurts, R.G.J.H. Janssen, M.M.J. van Greevenbroek, C.J.H. van der Kallen, R.M. Cantor, X. Bu, B.E. Aouizerat, H. Allayee, C.D. Lanning, W.A. Buurman, J.L. Rotter, T.W.A. de Bruin

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Familial combined hyperlipidemia (FCHL) is the most commonly inherited hyperlipidemia in man, with a frequency of +/-1% in the general population and similar to 10% in myocardial infarction survivors. A genomic scan in 18 Dutch FCHL families resulted in the identification of several loci with evidence for linkage. One of these regions, 1p36,2, contains TNFRSF1B which encodes one of the tumor necrosis factor receptors. An intron 4 polymorphic CA-repeat was used to confirm linkage to FCHL. Linear regression analysis using 79 independent sib pairs showed linkage with a quantitative FCHL discriminant function (P = 0,032), and, borderline, with apolipoprotein B levels (P = 0.064). Furthermore, in a case-control study, association was demonstrated since the overall CA-repeat genotype distribution was significantly different among 40 unrelated FCHL patients and 48 unrelated healthy spouse controls (P = 0.029), This difference was due to a significant increase in allele CA271 homozygotes in the FCHL patients (P = 0,019), Mutation analysis of exon 6 in 73 FCHL family members demonstrated the presence of a single nucleotide polymorphism with two alleles, coding for methionine (196M) and arginine (196R), Complete linkage disequilibrium between CA267, CA271 and CA273 and this polymorphism was detected. In 85 hyperlipidemic FCHL subjects, an association was demonstrated between soluble TNFRSF1B plasma concentrations and the CA271-196M haplotype, In conclusion, TNFRSF1B was found to be associated with susceptibility to FCHL, Our data suggest that an as yet unknown disease-associated mutation, linked to alleles 196M and CA271, plays a role in the pathophysiology of FCHL.
Original languageEnglish
Pages (from-to)2067-2074
Number of pages7
JournalHuman Molecular Genetics
Issue number14
Publication statusPublished - 1 Jan 2000

Cite this

Geurts, J. M. W., Janssen, R. G. J. H., van Greevenbroek, M. M. J., van der Kallen, C. J. H., Cantor, R. M., Bu, X., Aouizerat, B. E., Allayee, H., Lanning, C. D., Buurman, W. A., Rotter, J. L., & de Bruin, T. W. A. (2000). Identification of TNFRSF-1B as a novel modifier gene in familial combined hyperlipidemia. Human Molecular Genetics, 9(14), 2067-2074.