PMID- 33339862 OWN - NLM STAT- MEDLINE DCOM- 20210428 LR - 20210816 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 10 IP - 1 DP - 2020 Dec 18 TI - Methylation of estrogen receptor 2 (ESR2) in deep paravertebral muscles and its association with idiopathic scoliosis. PG - 22331 LID - 10.1038/s41598-020-78454-4 [doi] LID - 22331 AB - Idiopathic scoliosis (IS) is one of the most common spinal disorders in adolescents. Despite many studies, the etiopathogenesis of IS is still poorly understood. In recent years, the role of epigenetic factors in the etiopathogenesis of IS has been increasingly investigated. It has also been postulated that the development and progression of the disease is related to gender and puberty, and could be associated with estrogen action. Estrogen hormones act via estrogen receptor 1 (ESR1) and estrogen receptor 2 (ESR2). It has been suggested that ESR2 expression is dependent on methylation within its gene promoter. So far, no studies have evaluated local, tissue-specific DNA methylation in patients with IS. Thus, our study aimed to analyze the methylation and expression level of ESR2 in the paraspinal muscles of the convex and concave side of the IS curvature. The methylation level within ESR2 promoter 0N, but not exon 0N, was significantly higher on the concave side of the curvature compared to the convex side. There was no significant correlation between ESR2 expression and methylation level in the promoter 0N on the convexity of thoracic scoliosis, whereas, on the concave side of the curvature, we observed a moderate negative correlation. There was no difference in the methylation levels of the ESR2 promoter and exon 0N between groups of patients with Cobb angle 70 degrees on the concave and convex side of the curvature. We also found no statistically significant correlation between the Cobb angle value and the mean methylation level in either the ESR2 promoter or exon 0N on the convex or concave side of the curvature. Our findings demonstrate that DNA methylation at the ESR2 promoter in deep paravertebral muscle tissue is associated with the occurrence but not with the severity of idiopathic scoliosis. FAU - Chmielewska, Malgorzata AU - Chmielewska M AUID- ORCID: 0000-0003-0091-6492 AD - Chair and Department of Cell Biology, Poznan University of Medical Sciences, Rokietnicka Street 5D, Poznan, Poland. mchmielewska@ump.edu.pl. FAU - Janusz, Piotr AU - Janusz P AUID- ORCID: 0000-0001-5702-4933 AD - Department of Spine Disorders and Pediatric Orthopedics, Poznan University of Medical Sciences, 28 Czerwca 1956 r. Street 135/147, Poznan, Poland. FAU - Andrusiewicz, Miroslaw AU - Andrusiewicz M AUID- ORCID: 0000-0002-8781-3447 AD - Chair and Department of Cell Biology, Poznan University of Medical Sciences, Rokietnicka Street 5D, Poznan, Poland. FAU - Kotwicki, Tomasz AU - Kotwicki T AUID- ORCID: 0000-0003-0810-9361 AD - Department of Spine Disorders and Pediatric Orthopedics, Poznan University of Medical Sciences, 28 Czerwca 1956 r. Street 135/147, Poznan, Poland. FAU - Kotwicka, Malgorzata AU - Kotwicka M AUID- ORCID: 0000-0002-9802-374X AD - Chair and Department of Cell Biology, Poznan University of Medical Sciences, Rokietnicka Street 5D, Poznan, Poland. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20201218 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (ESR1 protein, human) RN - 0 (ESR2 protein, human) RN - 0 (Estrogen Receptor alpha) RN - 0 (Estrogen Receptor beta) RN - 0 (Estrogens) SB - IM MH - Adolescent MH - DNA Methylation/*genetics MH - Estrogen Receptor alpha/*genetics MH - Estrogen Receptor beta/*genetics MH - Estrogens/genetics MH - Female MH - Gene Expression Regulation/genetics MH - Humans MH - Male MH - Muscle, Skeletal/metabolism/pathology MH - Organ Specificity/genetics MH - Paraspinal Muscles MH - Promoter Regions, Genetic/genetics MH - Scoliosis/*genetics/physiopathology PMC - PMC7749113 COIS- The authors declare no competing interests. EDAT- 2020/12/20 06:00 MHDA- 2021/04/29 06:00 PMCR- 2020/12/18 CRDT- 2020/12/19 05:26 PHST- 2020/07/14 00:00 [received] PHST- 2020/11/25 00:00 [accepted] PHST- 2020/12/19 05:26 [entrez] PHST- 2020/12/20 06:00 [pubmed] PHST- 2021/04/29 06:00 [medline] PHST- 2020/12/18 00:00 [pmc-release] AID - 10.1038/s41598-020-78454-4 [pii] AID - 78454 [pii] AID - 10.1038/s41598-020-78454-4 [doi] PST - epublish SO - Sci Rep. 2020 Dec 18;10(1):22331. doi: 10.1038/s41598-020-78454-4.