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Lu CC, Chen YT, Chen SY, Hsu YM, Lin CC, Tsao JW, Juan YN, Yang JS, Tsai FJ. Hematopoietically expressed homeobox gene is associated with type 2 diabetes in KK Cg-A y/J mice and a Taiwanese Han Chinese population. Exp Ther Med 2018; 16:185-191. [PMID: 29896239 PMCID: PMC5995076 DOI: 10.3892/etm.2018.6152] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 11/29/2017] [Indexed: 12/12/2022] Open
Abstract
Diabetes mellitus (DM) is a chronic disease. The KK Cg-Ay/J (KK-Ay) mouse is an animal model to study type 2 diabetes mellitus (T2D) disease. The present study assessed the expression of hematopoietically expressed homeobox (HHEX) protein in liver tissues of different age groups of mice (6, 16 and 42 weeks) by immunohistochemistry (IHC). The results demonstrated a significant decrease in the percentage of HHEX-positive cells in KK-Ay mice as compared with that in KK-α/α control mice. Furthermore, in Taiwan's Han Chinese population, genotypic and allelic frequency distributions of the rs61862780 single-nucleotide polymorphism (SNP) in the HHEX gene were investigated. The results demonstrated that in the rs61862780 SNP of the 3′-untranslated region (UTR) of HHEX, the frequency of the CC genotype was higher in patients (6.0%) than in controls (2.7%), while the TT genotype frequency was about equal. In the same SNP, the frequency of the C allele was higher in patients (21.0%) than in controls (17.3%), while the T allele frequency was about equal. These results may pave the road for exploring the KK-Ay mouse model and the HHEX SNP rs61862780, which was correlated with the susceptibility to T2D in a Chinese population. Based on these findings, an association of HHEX gene expression with pathological features of T2D was indicated.
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Affiliation(s)
- Chi-Cheng Lu
- Department of Pharmacy, Buddhist Tzu Chi General Hospital, Hualien 97002, Taiwan, R.O.C
| | - Yng-Tay Chen
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40447, Taiwan, R.O.C.,Human Genetics Center, Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40447, Taiwan, R.O.C
| | - Shih-Yin Chen
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40447, Taiwan, R.O.C.,Human Genetics Center, Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40447, Taiwan, R.O.C
| | - Yuan-Man Hsu
- Department of Biological Science and Technology, China Medical University, Taichung 40402, Taiwan, R.O.C
| | - Chyi-Chyang Lin
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40447, Taiwan, R.O.C
| | - Je-Wei Tsao
- School of Pharmacy, China Medical University, Taichung 40402, Taiwan, R.O.C
| | - Yu-Ning Juan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40447, Taiwan, R.O.C
| | - Jai-Sing Yang
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40447, Taiwan, R.O.C
| | - Fuu-Jen Tsai
- Human Genetics Center, Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40447, Taiwan, R.O.C.,Department of Medical Genetics, China Medical University Hospital, Taichung 40447, Taiwan, R.O.C.,School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan, R.O.C
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Hershkovitz-Rokah O, Geva P, Salmon-Divon M, Shpilberg O, Liberman-Aronov S. Network analysis of microRNAs, genes and their regulation in diffuse and follicular B-cell lymphomas. Oncotarget 2018; 9:7928-7941. [PMID: 29487703 PMCID: PMC5814270 DOI: 10.18632/oncotarget.23974] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 12/21/2017] [Indexed: 12/14/2022] Open
Abstract
MicroRNAs (miRs) are short non-coding regulatory RNAs that control gene expression at the post-transcriptional level and play an important role in cancer development and progression, acting either as oncogenes or as tumor suppressors. Identification of aberrantly expressed miRs in patients with hematological malignancies as compared to healthy individuals has suggested that these molecules may serve as novel clinical diagnostic and prognostic biomarkers. We conducted a systematic literature review of articles published between 2007 and 2017 and re-analyzed experimentally-validated human miR expression signatures in diffuse large B-cell lymphoma (DLBCL) and follicular lymphoma (FL) from various biological sources (tumor tissue, peripheral blood, bone marrow and cell lines). A unique miR expression pattern was observed for each disease. Compared to healthy individuals, 61 miRs were aberrantly expressed in DLBCL and 85 in FL; 20-30% of aberrantly expressed miRs overlapped between the two lymphoma subtypes. Analysis of integrative positive and negative miRNA-mRNA relationships using the Ingenuity Pathway Analysis (IPA) system revealed 970 miR-mRNA pairs for DLBCL and 90 for FL. Through gene ontology analysis, we found potential regulatory pathways that are deregulated in DLBCL and FL due to improper expression of miR target genes. By comparing the expression level of the aberrantly expressed miRs in DLBCL to their expression levels in other malignancies, we identified seven miRs that are aberrantly expressed in DLBCL tumor tissues (miR-15a, miR-16, miR-17, miR-106, miR-21, miR-155 and miR-34a-5p). This specific expression pattern may be a potential diagnostic tool for DLBCL.
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Affiliation(s)
- Oshrat Hershkovitz-Rokah
- Department of Molecular Biology, Faculty of Natural Sciences, Ariel University, Ariel, Israel.,Translational Research Laboratory, Assuta Medical Centers, Tel Aviv, Israel.,Institude of Hematology, Assuta Medical Centers, Tel Aviv, Israel
| | - Polina Geva
- Department of Molecular Biology, Faculty of Natural Sciences, Ariel University, Ariel, Israel
| | - Mali Salmon-Divon
- Department of Molecular Biology, Faculty of Natural Sciences, Ariel University, Ariel, Israel
| | - Ofer Shpilberg
- Translational Research Laboratory, Assuta Medical Centers, Tel Aviv, Israel.,Institude of Hematology, Assuta Medical Centers, Tel Aviv, Israel.,Pre-Medicine Department, School of Health Sciences, Ariel University, Ariel, Israel
| | - Stella Liberman-Aronov
- Department of Molecular Biology, Faculty of Natural Sciences, Ariel University, Ariel, Israel
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Liu S, Chai J, Zheng G, Li H, Lu D, Ge Y. Screening of HHEX Mutations in Chinese Children with Thyroid Dysgenesis. J Clin Res Pediatr Endocrinol 2016; 8:21-5. [PMID: 26757609 PMCID: PMC4805044 DOI: 10.4274/jcrpe.2456] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
OBJECTIVE Congenital hypothyroidism (CH) is a frequent neonatal endocrine disease with an incidence of about 1:2500 worldwide. Although thyroid dysgenesis (TD) is the most frequent cause of CH cases, its pathogenesis remains unclear. The aim of this study was to screen the hematopoietically-expressedhomeobox gene (HHEX) mutations in Chinese children with TD. METHODS Genomic deoxyribonucleic acid was extracted from peripheral blood leukocytes in 234 TD patients from Shandong Province. Mutations in all exons and nearby introns of HHEX were analyzed by direct sequencing after polymerase chain reaction amplification. RESULTS Sequencing analysis of HHEX indicated that no causative mutations were present in the coding regionof the TD patients. However, a genetic variant (IVS2+ 127 G/T, 10.26%) was observed in the intron 2 in HHEX. CONCLUSION Our results indicate that the frequency of HHEX mutation is very low and may not be the main causative factor in Chinese TD patients. However, these results need to be replicated using larger datasets collected from different populations.
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Affiliation(s)
- Shiguo Liu
- The Affiliated Hospital of Qingdao University, Prenatal Diagnosis Center, Qingdao, China
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The Affiliated Hospital of Qingdao University, Genetic Laboratory, Qingdao, China
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These authors contributed equally to this work.
| | - Jian Chai
- Qingdao University Faculty of Medicine, Department of Biochemistry and Molecular Biology, Qingdao, China
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These authors contributed equally to this work.
| | - Guohua Zheng
- Weifang Maternal and Children Health’s Hospital, Weifang, China
| | - Huichao Li
- The Affiliated Hospital of Qingdao University, Department of Thyroid Surgery, Qingdao, China
| | - Deguo Lu
- Linyi People's Hospital, Department of Clinical Laboratory, Shandong, China, E-mail:
| | - Yinlin Ge
- Qingdao University Faculty of Medicine, Department of Biochemistry and Molecular Biology, Qingdao, China
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