Tumour necrosis factor receptor-associated periodic syndrome with a novel mutation in the TNFRSF1A gene in a Japanese family.
Tumour necrosis factor receptor-associated periodic syndrome (TRAPS) is a dominantly inherited disorder characterised by recurrent episodes of sustained fever. Here we report a case of TRAPS with a novel TNFRSF1A mutation, C70S, in a Japanese family. The mutation disrupts one of the three disulphide bonds in cysteine-rich domain 2 of TNF receptor 1, similar to the reported mutations of the same cysteine residue (C70R, C70Y). This is the first confirmed case of TRAPS in an eastern Asian population. The patient's asymptomatic sister as well as their mother with mild symptoms had the same mutation.


CONCLUSIONS
Although tumour necrosis factor receptor-associated periodic syndrome has been reported mainly in families of northern European ancestry, our case suggests the need to include it in the differential diagnosis of patients with recurrent fever even in ethnic groups in which no case has been documented.
Kusuhara
Koichi
K
Department of Paediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higahi-ku, 812-8582 Fukuoka, Japan. kkusuhar@pediatr.med.kyushu-u.ac.jp
Nomura
Akihiko
A
Nakao
Futoshi
F
Hara
Toshiro
T
D000293:Adolescent; D010505:Familial Mediterranean Fever / Q000208:ethnology* / Q000235:genetics*; D005260:Female; D006801:Humans; D007564:Japan; D009154:Mutation; D018124:Receptors, Tumor Necrosis Factor / Q000235:genetics*; D047889:Receptors, Tumor Necrosis Factor, Type II
D018124:Receptors, Tumor Necrosis Factor; D047889:Receptors, Tumor Necrosis Factor, Type II; C415902:TNFRSF1B protein, human