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Chen X, Xu J, Wang P, Shang L, Guo J, Huang L, Jiang YA, Chen J, Chen H, Shang Y, Zhang Q. Metallophosphoesterase 1, a novel candidate gene in hepatocellular carcinoma malignancy and recurrence. Cancer Biol Ther 2020; 21:1005-1013. [PMID: 33054568 DOI: 10.1080/15384047.2020.1824480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND There is an unmet need to identify novel mechanism-based prognostic genes associated with hepatocellular carcinoma (HCC) recurrence that can predict patient outcomes and provide therapeutic targets. This study aims to identify potential novel driver genes and mutations in HCC. METHODS Single nucleotide variations (SNVs) contributing to HCC recurrence were identified using whole-exome sequencing of 5 DNA samples extracted from a single HCC patient with HBV-induced cirrhosis. SNVs were verified in primary HCC (n = 87), recurrent HCC (n = 34), and benign liver disease with cirrhosis tissues (n = 43). A candidate gene was identified, and its association and function in HCC development and recurrence were examined. RESULTS 177 SNVs were identified and 70 SNVs were verified. A MPPE1 missense mutation on chr18_11897016 was the most frequent mutation (16.5%) in primary and recurrent HCC tissues, occurring with a higher frequency in recurrent HCC than primary HCC or benign liver tumor tissues. The MPPE1 mutation was significantly associated with HCC recurrence (P = .003), TNM stage (P = .002), and Child-Pugh classification (P = .039), and was an independent risk factor for HCC recurrence (HR = 1.969; 95%CI = 1.043-3.714, P = .037). Analysis of publically available data deposited in the GEO and TCGA showed MPPE1 expression levels were significantly increased in HCC tumor samples compared to adjacent nontumor tissues. The knockdown of MPPE1 in HCC cell lines significantly inhibited cell proliferation, migration and invasion, induced cell cycle arrest and apoptosis in vitro, and inhibited xenograft tumor growth in nude mice in vivo (P < .05). CONCLUSIONS MPPE1 is a novel gene associated with HCC malignancy and recurrence.
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Affiliation(s)
- Xinguo Chen
- Institute of Liver Surgery, Third Medical Centre of Chinese PLA General Hospital , Beijing, China
| | - Jing Xu
- Medical Research Center, Southern University of Science and Technology Hospital , Shenzhen, China.,National Translational Science Center for Molecular Medicine & Department of Cell Biology, The Fourth Military Medical University , Xi'an, China
| | - Peixiao Wang
- Institute of Liver Surgery, Third Medical Centre of Chinese PLA General Hospital , Beijing, China.,Department of Gastroenterology, Henan Children's Hospital , Zhengzhou, China
| | - Lei Shang
- Department of Health Statistics, Faculty of Preventive Medicine, Fourth Military Medical University , Xi'an, China
| | - Jing Guo
- Medical Department, Third Medical Centre of Chinese PLA General Hospital , Beijing, China
| | - Lihong Huang
- Medical Department, Third Medical Centre of Chinese PLA General Hospital , Beijing, China
| | - Yide A Jiang
- Institute of Sanofi Genzyme R&D Center, Genzyme - a Sanofi Company , Framingham, MA, USA
| | - Jinhong Chen
- Medical Department, Third Medical Centre of Chinese PLA General Hospital , Beijing, China
| | - Huijuan Chen
- Institute of Liver Surgery, Third Medical Centre of Chinese PLA General Hospital , Beijing, China
| | - Yukui Shang
- National Translational Science Center for Molecular Medicine & Department of Cell Biology, The Fourth Military Medical University , Xi'an, China
| | - Qing Zhang
- Institute of Liver Surgery, Third Medical Centre of Chinese PLA General Hospital , Beijing, China
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Two novel genomic regions associated with fearfulness in dogs overlap human neuropsychiatric loci. Transl Psychiatry 2019; 9:18. [PMID: 30655508 PMCID: PMC6336819 DOI: 10.1038/s41398-018-0361-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 12/10/2018] [Indexed: 12/17/2022] Open
Abstract
Anxiety disorders are among the leading health issues in human medicine. The complex phenotypic and allelic nature of these traits as well as the challenge of establishing reliable measures of the heritable component of behaviour from the associated environmental factors hampers progress in their molecular aetiology. Dogs exhibit large natural variation in fearful and anxious behaviour and could facilitate progress in the molecular aetiology due to their unique genetic architecture. We have performed a genome-wide association study with a canine high-density SNP array in a cohort of 330 German Shepherds for two phenotypes, fear of loud noises (noise sensitivity) and fear of strangers or in novel situations. Genome-widely significant loci were discovered for the traits on chromosomes 20 and 7, respectively. The regions overlap human neuropsychiatric loci, including 18p11.2, with physiologically relevant candidate genes that contribute to glutamatergic and dopaminergic neurotransmission in the brain. In addition, the noise-sensitivity locus includes hearing-related candidate genes. These results indicate a genetic contribution for canine fear and suggest a shared molecular aetiology of anxiety across species. Further characterisation of the identified loci will pave the way to molecular understanding of the conditions as a prerequisite for improved therapy.
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