Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics · 2021
[Up-regulated SUMO1 expression by inhibition of miRNA-548m as a potential cause of congenital orofacial cleft in a fetus].
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Niu Wenbin, Huo Mingzhu, Xu Jiawei, Wang Fang, Zhao Yanping, Shi Hao, Liu Yidong, Sun Yingpu
Аннотация
OBJECTIVE: To explore the genetic etiology for a fetus with congenital orofacial cleft.
METHODS: Single nucleotide polymorphism microarray (SNP array) was carried out on skin tissues sampled from the fetus following induced abortion for the detection of copy number variation (CNVs). Pathogenicity of the candidate gene was validated through experiment.
RESULTS: SNP array revealed that the fetus has carried a hemizygous 9.23Mb deletion at Xq21.31-q22.1(91 063 807-100 293 555), which was inherited from its mother. The region contained 13 OMIM genes and 1 ncRNA coding gene(MIR548M). Inhibiting of the expression of the MIR548M gene in oral epithelial celllines has resulted in up-regulation of the expression of SUMO1 gene which was known to involve in the pathogenesis of orofacial cleft.
CONCLUSION: Dosage insufficiency of the MIR548M gene may underlie the etiology of orofacial cleft in this fetus.
METHODS: Single nucleotide polymorphism microarray (SNP array) was carried out on skin tissues sampled from the fetus following induced abortion for the detection of copy number variation (CNVs). Pathogenicity of the candidate gene was validated through experiment.
RESULTS: SNP array revealed that the fetus has carried a hemizygous 9.23Mb deletion at Xq21.31-q22.1(91 063 807-100 293 555), which was inherited from its mother. The region contained 13 OMIM genes and 1 ncRNA coding gene(MIR548M). Inhibiting of the expression of the MIR548M gene in oral epithelial celllines has resulted in up-regulation of the expression of SUMO1 gene which was known to involve in the pathogenesis of orofacial cleft.
CONCLUSION: Dosage insufficiency of the MIR548M gene may underlie the etiology of orofacial cleft in this fetus.