Endocrine Research Center, Research Institute for Endocrine Sciences (RIES), Shahid Beheshti University of Medical Sciences, Tehran, Iran,
Section of Cardiothoracic Surgery, Tehran University of Medical Sciences, Tehran, Iran.
Arch Endocrinol Metab. 2021 Nov 3;65(3):376-380. doi: 10.20945/2359-3997000000369. Epub 2021 Apr 29.
Carney complex (CNC) is a rare syndrome of multiple endocrine and non-endocrine tumors. In this paper we present a 23-year-old Iranian woman with CNC who harbored a novel mutation (c.642dupT) in gene. This patient presented with pituitary macroadenoma, acromegaly, recurrent atrial myxoma, Cushing's syndrome secondary to primary pigmented nodular adrenocortical disease and pigmented schwanoma of the skin. gene was PCR amplified using genomic DNA and analyzed for sequence variants which revealed the novel mutation resulting in substitution of amino acid cysteine instead of the naturally occurring valine in the peptide chain and a premature stop codon at position 18 (V215CfsX18). This change leads to development of tumors in different organs due to lack of tumor suppressive activity secondary to failure of synthesis of the related protein.
卡尼复合征(CNC)是一种罕见的多内分泌和非内分泌肿瘤综合征。本文报道了一位 23 岁的伊朗女性 CNC 患者,携带基因中的一种新突变(c.642dupT)。该患者表现为垂体大腺瘤、肢端肥大症、复发性心房黏液瘤、原发性色素性结节性肾上腺皮质病继发库欣综合征和皮肤色素性施万细胞瘤。使用基因组 DNA 扩增基因并分析序列变异,发现新的突变导致氨基酸半胱氨酸取代肽链中的天然缬氨酸和第 18 位的提前终止密码子(V215CfsX18)。这种变化导致不同器官的肿瘤发生,这是由于相关蛋白合成失败导致肿瘤抑制活性丧失。