The purpose of the present study was to analyze the clinical phenotypes of a girl with oculo-facio-cardio-dental(OFCD)syndrome and to identify the potential pathogenic mutation responsible for her disease. The patient...The purpose of the present study was to analyze the clinical phenotypes of a girl with oculo-facio-cardio-dental(OFCD)syndrome and to identify the potential pathogenic mutation responsible for her disease. The patient underwent detailed clinical examinations and phenotype data were collected over a follow-up period of 9 years. Mutation analysis of the candidate gene BCOR was performed with polymerase chain reaction and Sanger sequencing. BCOR of 60 unrelated normal individuals were also sequenced as a control group. Clinical phenotyping and follow-up study results indicate that this patient had multiple system anomalies including ocular, facial, cardiac, dental, and limb malformations. In addition, papilloma of the choroid plexus was identified, which represents the first report of this phenotype in an OFCD patient. A novel deletion mutation, c.1296 delT in exon4 of the BCOR gene, was identified in this patient and was not found in her parents or in 60 normal unrelated individuals. This deletion was a frameshift mutation and is proposed to encode a premature stop codon, thus producing a truncated protein. Our patient fitted the diagnostic criteria for OFCD syndrome and we report the first papilloma of the choroid plexus in an OFCD patient, expanding the recognized phenotypic spectrum of this disease. Meanwhile, we identified a novel deletion mutation that may cause OFCD syndrome.展开更多
目的:初步探讨眼面心牙综合症(oculo-facio-cardio-dentalsyndrome,OFCD)患者牙根过度发育的机制。方法:分别取OFCD患者和正常人根尖牙乳头干细胞,通过MTT法检测增殖能力、碱性磷酸酶(alka line phosphatase,ALP)试剂盒法检测ALP活性、W...目的:初步探讨眼面心牙综合症(oculo-facio-cardio-dentalsyndrome,OFCD)患者牙根过度发育的机制。方法:分别取OFCD患者和正常人根尖牙乳头干细胞,通过MTT法检测增殖能力、碱性磷酸酶(alka line phosphatase,ALP)试剂盒法检测ALP活性、Western Blot检测牙本质涎蛋白(dentin sialoprotein,DSP)和核心结合因子(runt-related transcription factor 2,Runx2)的表达量。结果:OFCD患者根尖牙乳头干细胞的增殖活性、ALP活性、DSP和Runx2蛋白表达量均高于正常人来源的根尖牙乳头干细胞。结论:根尖牙乳头干细胞的增殖及成牙成骨能力增强可能是导致OFCD患者牙根过度发育的原因。展开更多
基金supported by Beijing New Star of Science and Technology (H020821380190, Z131102000413025)Fund of Work Committee for Women and Children of China State Department (2014108)+1 种基金National Natural Science Foundation (30471861)Beijing Institute of Ophthalmology Leading Programme (201515)
文摘The purpose of the present study was to analyze the clinical phenotypes of a girl with oculo-facio-cardio-dental(OFCD)syndrome and to identify the potential pathogenic mutation responsible for her disease. The patient underwent detailed clinical examinations and phenotype data were collected over a follow-up period of 9 years. Mutation analysis of the candidate gene BCOR was performed with polymerase chain reaction and Sanger sequencing. BCOR of 60 unrelated normal individuals were also sequenced as a control group. Clinical phenotyping and follow-up study results indicate that this patient had multiple system anomalies including ocular, facial, cardiac, dental, and limb malformations. In addition, papilloma of the choroid plexus was identified, which represents the first report of this phenotype in an OFCD patient. A novel deletion mutation, c.1296 delT in exon4 of the BCOR gene, was identified in this patient and was not found in her parents or in 60 normal unrelated individuals. This deletion was a frameshift mutation and is proposed to encode a premature stop codon, thus producing a truncated protein. Our patient fitted the diagnostic criteria for OFCD syndrome and we report the first papilloma of the choroid plexus in an OFCD patient, expanding the recognized phenotypic spectrum of this disease. Meanwhile, we identified a novel deletion mutation that may cause OFCD syndrome.
