0 496

Cited 3 times in

Downregulation of miR-216a-5p and miR-652-3p is associated with growth and invasion by targeting JAK2 and PRRX1 in GH-producing pituitary tumours

 Yang Jong Lee  ;  Chan Woo Kang  ;  Ju Hun Oh  ;  Jean Kim  ;  Jong-Pil Park  ;  Ju Hyung Moon  ;  Eui Hyun Kim  ;  Soohyun Lee  ;  Se Hoon Kim  ;  Cheol Ryong Ku  ;  Eun Jig Lee 
 JOURNAL OF MOLECULAR ENDOCRINOLOGY, Vol.68(1) : 51-62, 2022-01 
Journal Title
Issue Date
acromegaly ; miRNA ; mouse model ; pituitary tumours
Expression of aberrant microRNA (miRNA) is associated with tumour formation, migration, and invasion. However, there is limited information about the epigenetics of pituitary tumorigenesis. This study investigated the role of miRNA expression during the tumorigenesis of growth hormone (GH)-secreting pituitary tumours. miRNA profiling and real-time PCR were used to analyse the mRNA expression profile in sequential pituitary tissues of a unique animal model with a GH-producing pituitary tumour. Selected miRNAs were further validated in GH-producing cell lines and human pituitary tumour samples. The expression of significantly altered miRNAs and their predicted targets, as detected by microarray, was evaluated by real-time PCR, Western blotting, and immunohistochemistry using samples from mouse models and human pituitary tumours. The effect of miRNAs on tumour proliferation and invasion was examined in GH3 cells using the MTS and Matrigel invasion assays. Among the 14 miRNAs whose expression was significantly changed, miR-216a-5p (fold change = -5.638, P -value = 0.014) and miR-652-3p (fold change = -3.482, P -value = 0.010) were constantly and significantly downregulated. Transfection with mimics of miR-216a-5p and miR-652-3p inhibited GH3 proliferation and invasion, whereas inhibitors promoted them. The direct target genes of miR-216a-5p and miR-652-3p were Jak2 and Prrx1, respectively, which were downregulated in GH3 cells transfected with mimics and in serial pituitary gland tissues, including hyperplasic tissues and tumours of acromegalic animal models and pituitary tumour tissues of acromegalic patients. Downregulated miR-216a-5p and miR-652-3p expression may contribute to tumour progression by targeting JAK2 and PRRX1 on GH-producing pituitary tumours.
Full Text
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Forensic Medicine (법의학과) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Pathology (병리학교실) > 1. Journal Papers
Yonsei Authors
Kang, Chan Woo(강찬우)
Ku, Cheol Ryong(구철룡) ORCID logo https://orcid.org/0000-0001-8693-9630
Kim, Se Hoon(김세훈) ORCID logo https://orcid.org/0000-0001-7516-7372
Kim, Eui Hyun(김의현) ORCID logo https://orcid.org/0000-0002-2523-7122
Moon, Ju Hyung(문주형)
Park, Jong Pil(박종필) ORCID logo https://orcid.org/0000-0002-6525-3012
Lee, Yang Jong(이양종)
Lee, Eun Jig(이은직) ORCID logo https://orcid.org/0000-0002-9876-8370
사서에게 알리기


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.