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1.
Genet Mol Res ; 14(3): 8716-24, 2015 Jul 31.
Artigo em Inglês | MEDLINE | ID: mdl-26345803

RESUMO

The purpose of this study was to examine the changes of cellular cholesterol efflux from macrophages in patients with type II diabetes mellitus (DM), and to determine the expression of CYP7A1, ABCG5, and LXRß therein. We recruited 30 patients with type II DM (including 15 patients complicated with coronary heart disease and 15 patients with DM only) and 15 normal controls for this study. Peripheral blood monocytes were isolated for macrophage culture. The mRNA and protein expression levels of CYP7A1, ABCG5, and LXRß were determined using real-time polymerase chain reaction and western blot. The macrophage cholesterol efflux rate was determined with 10% autoserum and standard serum as receptors. We determined that the expression levels of macrophage CYP7A1 mRNA and protein in the type II DM group were significantly lower than those in the control group, but no differences were found in the ABCG5 and LXRß expression levels between the groups. The macrophage cholesterol efflux rate in the patients with type II DM was also significantly decreased compared with that of the normal control subjects (P < 0.01). Furthermore, CYP7A1 mRNA expression and macrophage cholesterol efflux rate were significantly positively correlated. In summary, this study demonstrated that the macrophage cholesterol efflux in patients with type II DM was significantly reduced, and that this reduction was associated with the down-regulation of CYP7A1 expression.


Assuntos
Colesterol 7-alfa-Hidroxilase/genética , Colesterol/metabolismo , Doença das Coronárias/enzimologia , Diabetes Mellitus Tipo 2/enzimologia , Macrófagos/enzimologia , Membro 5 da Subfamília G de Transportadores de Cassetes de Ligação de ATP , Transportadores de Cassetes de Ligação de ATP/genética , Transportadores de Cassetes de Ligação de ATP/metabolismo , Adulto , Estudos de Casos e Controles , Células Cultivadas , Colesterol/sangue , Colesterol 7-alfa-Hidroxilase/metabolismo , Doença das Coronárias/sangue , Doença das Coronárias/etiologia , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/complicações , Regulação para Baixo , Repressão Enzimática , Feminino , Humanos , Lipoproteínas/genética , Lipoproteínas/metabolismo , Receptores X do Fígado , Macrófagos/metabolismo , Masculino , Pessoa de Meia-Idade , Receptores Nucleares Órfãos/genética , Receptores Nucleares Órfãos/metabolismo , RNA Mensageiro/genética , RNA Mensageiro/metabolismo
7.
Tissue Antigens ; 85(6): 499-501, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25754659

RESUMO

HLA-A*02:07:06 shows 285 A>C and HLA-A*02:426 has 763 G>A change compared with HLA-A*02:07:01.


Assuntos
Genes MHC Classe I , Antígenos HLA-A/genética , Alelos , Medula Óssea , China , Humanos , Dados de Sequência Molecular , Análise de Sequência de DNA , Doadores de Tecidos
10.
Tissue Antigens ; 84(4): 419-20, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25040351

RESUMO

HLA-C*08:01:10 differs from HLA-C*08:01:01 by a single non-coding change at nucleotide 339 G>A.


Assuntos
Alelos , Antígenos HLA-C/genética , Leucemia/genética , Povo Asiático , Humanos
15.
Int J Immunogenet ; 41(1): 13-9, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23731569

RESUMO

Umbilical cord blood (UCB) is a widely accepted source of progenitor cells, and now, many cord blood banks were established. Here, we analysed the HLA-A, HLA-B and HLA-DRB1 allele and haplotype frequencies, HLA matching possibilities for searching potential donors and outcome of UCB transplantations in Zhejiang cord blood bank of China. A total of 6384 UCB units were characterized for 17 HLA-A, 30 HLA-B and 13 HLA-DRB1 alleles at the first field resolution level. Additionally, B*14, B*15 and B*40 were typed to the second field level. A total of 1372 distinct A-B-DRB1 haplotypes were identified. The frequencies of 7 haplotypes were more than 1%, and 439 haplotypes were <0.01%. A*02-B*46-DRB1*09, A*33-B*58-DRB1*03 and A*30-B*13-DRB1*07 were the most common haplotypes, with frequencies of 4.4%, 3.3%, and 2.9%, respectively. Linkage disequilibrium(LD) analysis showed that there were 83 A-B, 106 B-DRB1, 54 A-DRB1 haplotypes with positive LD, in which 51 A-B, 60 B-DRB1, 32 A-DRB1 haplotypes exhibited a significant LD (P < 0.05). In 682 search requests, 12.9%, 40.0% and 42.7% of patients were found to have 6 of 6, 5 of 6 and 4 of 6 HLA-A, HLA-B and HLA-DRB1 matching donors, respectively. A total of 30 UCB units were transplanted to 24 patients (3 patients not evaluated due to early death); 14 of 21 patients (66.7%) engrafted. This study reveals the HLA distribution and its transplantation application in the cord blood bank of Zhejiang province. These data can help to select potential UCB donors for transplantation and used to assess the scale of new cord blood banking endeavours.


Assuntos
Alelos , Transplante de Células-Tronco de Sangue do Cordão Umbilical , Frequência do Gene , Antígenos HLA-A/genética , Antígenos HLA-B/genética , Cadeias HLA-DRB1/genética , Haplótipos , Adolescente , Adulto , Bancos de Sangue , Criança , Pré-Escolar , China , Sangue Fetal , Genética Populacional , Sobrevivência de Enxerto , Antígenos HLA-A/imunologia , Antígenos HLA-B/imunologia , Cadeias HLA-DRB1/imunologia , Teste de Histocompatibilidade , Humanos , Lactente , Desequilíbrio de Ligação , Adulto Jovem
18.
J Endocrinol ; 219(3): 183-93, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24029729

RESUMO

Graves' disease (GD) is a common organ-specific autoimmune disease with the prevalence between 0.5 and 2% in women. Several lines of evidence indicate that the shed A-subunit rather than the full-length thyrotropin receptor (TSHR) is the autoantigen that triggers autoimmunity and leads to hyperthyroidism. We have for the first time induced GD in female rhesus monkeys, which exhibit greater similarity to patients with GD than previous rodent models. After final immunization, the monkeys injected with adenovirus expressing the A-subunit of TSHR (A-sub-Ad) showed some characteristics of GD. When compared with controls, all the test monkeys had significantly higher TSHR antibody levels, half of them had increased total thyroxine (T4) and free T4, and 50% developed goiter. To better understand the underlying mechanisms, quantitative studies on subpopulations of CD4+T helper cells were carried out. The data indicated that this GD model involved a mixed Th1 and Th2 response. Declined Treg proportions and increased Th17:Treg ratio are also observed. Our rhesus monkey model successfully mimicked GD in humans in many aspects. It would be a useful tool for furthering our understanding of the pathogenesis of GD and would potentially shorten the distance toward the prevention and treatment of this disease in human.


Assuntos
Modelos Animais de Doenças , Doença de Graves/fisiopatologia , Macaca mulatta , Glândula Tireoide/fisiopatologia , Animais , Antígenos/genética , Antígenos/toxicidade , Autoanticorpos/análise , Biomarcadores/sangue , Feminino , Técnicas de Transferência de Genes , Doença de Graves/etiologia , Doença de Graves/imunologia , Doença de Graves/patologia , Humanos , Imunotoxinas/genética , Imunotoxinas/toxicidade , Tamanho do Órgão , Subunidades Proteicas/genética , Subunidades Proteicas/toxicidade , Receptores da Tireotropina/administração & dosagem , Receptores da Tireotropina/genética , Proteínas Recombinantes/toxicidade , Células Th1/imunologia , Células Th1/metabolismo , Células Th17/imunologia , Células Th17/metabolismo , Células Th2/imunologia , Células Th2/metabolismo , Glândula Tireoide/imunologia , Glândula Tireoide/patologia , Tiroxina/sangue , Tiroxina/metabolismo
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