作者: Christopher J Ricketts , Julia R Forman , Eleanor Rattenberry , Nicola Bradshaw , Fiona Lalloo
DOI: 10.1002/HUMU.21136
关键词:
摘要: Succinate dehydrogenase B (SDHB) and D (SDHD) subunit gene mutations predispose to adrenal extraadrenal pheochromocytomas, head neck paragangliomas (HNPGL), other tumor types. We report risks in 358 patients with SDHB (n=295) SDHD (n=63) mutations. Risks of HNPGL pheochromocytoma mutation carriers were 29% 52%, respectively, at age 60 years 71% 29%, carriers. malignant renal tumors (14% 70 years) higher carriers; 55 different (including a novel recurrent exon 1 deletion) identified. No clear genotype-phenotype correlations detected for However, predicted result loss expression or truncated unstable protein associated significantly increased risk compared missense that not impair stability (most such cases had the common p.Pro81Leu mutation). Analysis largest cohort SDHB/D has enhanced estimates penetrance supports silicon structure prediction analysis functional assessment The differing effect on suggests mechanisms tumorigenesis SDH-associated pheochromocytoma.