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Endocrinol Metab : Endocrinology and Metabolism


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Se Hoon Kim  (Kim SH) 2 Articles
Clinical Study
Associations of GNAS Mutations with Surgical Outcomes in Patients with Growth Hormone-Secreting Pituitary Adenoma
Hyein Jung, Kyungwon Kim, Daham Kim, Ju Hyung Moon, Eui Hyun Kim, Se Hoon Kim, Cheol Ryong Ku, Eun Jig Lee
Endocrinol Metab. 2021;36(2):342-350.   Published online March 23, 2021
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  • 135 Download
  • 3 Citations
AbstractAbstract PDFPubReader   ePub   
The guanine nucleotide-binding protein, alpha stimulating (GNAS) gene has been associated with growth hormone (GH)-secreting pituitary adenoma. We investigated the prevalence of GNAS mutations in Korean patients with acromegaly and assessed whether mutation status correlated with biochemical or clinical characteristics.
We studied 126 patients with acromegaly who underwent surgery between 2005 and 2014 at Severance Hospital. We performed GNAS gene analysis and evaluated age, sex, hormone levels, postoperative biochemical remission, and immunohistochemical staining results of the tumor.
GNAS mutations were present in 75 patients (59.5%). Patients with and without GNAS mutations showed similar age distribution and Knosp classification. The proportion of female patients was 76.5% and 48.0% in the GNAS-negative and GNAS-mutation groups, respectively (P=0.006). In immunohistochemical staining, the GNAS-mutation group showed higher GH expression in pituitary tumor tissues than the mutation-negative group (98.7% vs. 92.2%, P=0.015). Patients with GNAS mutations had higher preoperative insulin-like growth factor-1 levels (791.3 ng/mL vs. 697.0 ng/mL, P=0.045) and lower immediate postoperative basal (0.9 ng/mL vs. 1.0 ng/mL, P=0.191) and nadir GH levels (0.3 ng/mL vs. 0.6 ng/mL, P=0.012) in oral glucose tolerance tests. Finally, the GNAS-mutation group showed significantly higher surgical remission rates than the mutation-negative group, both at 1 week and 6 months after surgical resection (70.7% vs. 54.9%, P=0.011; 85.3% vs. 82.4%, P=0.007, respectively).
GNAS mutations in GH-secreting pituitary tumors are associated with higher preoperative insulin-like growth factor-1 levels and surgical remission rates and lower immediate postoperative nadir GH levels. Thus, GNAS mutation status can predict surgical responsiveness in patients with acromegaly.


Citations to this article as recorded by  
  • CD8/PD-L1 immunohistochemical reactivity and gene alterations in cutaneous squamous cell carcinoma
    Haruto Nishida, Yoshihiko Kondo, Takahiro Kusaba, Kazuhiro Kawamura, Yuzo Oyama, Tsutomu Daa, Avaniyapuram Kannan Murugan
    PLOS ONE.2023; 18(2): e0281647.     CrossRef
  • Dynamic monitoring of circulating tumor DNA to analyze genetic characteristics and resistance profile of lorlatinib in ALK positive previously treated NSCLC
    Xiya Ma, Kun Zhang, Jing Xu, Hongjun Gao, Shaoxing Yang, Haifeng Qin, Hong Wang, Fang Gao, Xiaoqing Liu
    Thoracic Cancer.2023; 14(20): 1980.     CrossRef
  • Multiomics Approach to Acromegaly: Unveiling Translational Insights for Precision Medicine
    Kyungwon Kim, Cheol Ryong Ku, Eun Jig Lee
    Endocrinology and Metabolism.2023; 38(5): 463.     CrossRef
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Genetic and Epigenetic Analysis in Korean Patients with Multiple Endocrine Neoplasia Type 1
Yoon Jung Chung, Sena Hwang, Jong Ju Jeong, Sun Yong Song, Se Hoon Kim, Yumie Rhee
Endocrinol Metab. 2014;29(3):270-279.   Published online September 25, 2014
  • 3,281 View
  • 42 Download
  • 4 Citations
AbstractAbstract PDFPubReader   

Multiple endocrine neoplasia type 1 (MEN1) is a familial syndrome characterized by the parathyroid, pancreas and pituitary tumors. Parathyroid tumors are the most common clinical manifestations, occurring in more than 90% of MEN1 patients. Heterozygous germline mutations of the MENIN gene underlie the tumorigenesis in MEN1 and epigenetic alterations along with germline mutations may contribute to tumorigenesis. Here, we investigated the associations between genotype and phenotype in Korean MEN1 patients.


We analyzed medical records from 14 unrelated MEN1 patients who had newly confirmed MENIN germline mutations, together with 14 previous reports in Korea. Aberrant DNA methylations were also examined in MEN1-related parathyroid tumors using the Infinium HumanMethylation 450 BeadChip.


Total 28 germline mutations of MENIN were relatively highly concentrated in exons 7 and 8 compared to previous reports from Western countries. Six mutations (c.111dupT/p.S38Ffs*79, c.225_226insT/p.T76Yfs*41, c.383_398del16/p.S128Tfs*52, c.746dupT/p.H250Afs*20, c.1150G>T/p.E384*, and c.1508G>A/p.G503N) were newly found in the present study. Of interest, four patients (15%) showed unusual initial presentations and three patients were diagnosed incidentally at the general medical checkup. We also found three distinct sites in exon 2 of MENIN were significantly hypomethylated in the MEN1 parathyroid tumors, comparing correspondent blood samples.


We also have found a lack of genotype/phenotype correlation in Korean MEN1 patients. There were not a few unusual initial manifestations in MEN1 patients, thus, genetic testing for the MENIN germline mutations can provide important information for the better prognosis. Further studies are warranted to investigate altered DNA methylations in the MENIN gene involved in tumorigenesis.


Citations to this article as recorded by  
  • Cutaneous lesions and other non-endocrine manifestations of Multiple Endocrine Neoplasia type 1 syndrome
    Laura Pierotti, Elena Pardi, Elisa Dinoi, Paolo Piaggi, Simona Borsari, Simone Della Valentina, Chiara Sardella, Angela Michelucci, Maria Adelaide Caligo, Fausto Bogazzi, Claudio Marcocci, Filomena Cetani
    Frontiers in Endocrinology.2023;[Epub]     CrossRef
  • A Case of Asymptomatic Multiple Endocrine Neoplasia Type I with Thymic Carcinoid
    Suk Ki Park, Moon Won Lee, In Sub Han, Young Joo Park, Sung Yong Han, Joon Woo Park, Bong Eun Lee, Gwang Ha Kim, Sang Soo Kim
    The Korean Journal of Helicobacter and Upper Gastrointestinal Research.2019; 19(1): 65.     CrossRef
  • Multiple Endocrine Neoplasia Syndromes from Genetic and Epigenetic Perspectives
    Fatemeh Khatami, Seyed Mohammad Tavangar
    Biomarker Insights.2018; 13: 117727191878512.     CrossRef
  • Articles in 'Endocrinology and Metabolism' in 2014
    Won-Young Lee
    Endocrinology and Metabolism.2015; 30(1): 47.     CrossRef
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