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1.
中华(上海)骨髓库江浙沪汉族人群HLA基因多态性调查   总被引:7,自引:0,他引:7  
目的 调查中华(上海)骨髓库江浙沪汉族人群HLA—A、B、DR的基因多态。方法 应用PCR—SSP技术、结合上海自行设计的基因分型格局,检测中华(上海)骨髓库江浙沪汉族人群HLA-A、B、DR基因多态性及其频率分布特征。结果 调查中共检出A位点抗原26种,B位点抗原54种,DR位点20余种,其中最常见抗原包括A2、A11、A24、A30、A33、B13、B46、B51、B58、B60、B61、B62、DR3、DR4、DR7、DR9、DR15、DR16等。结论 中华(上海)骨髓库江浙沪汉族人群HLA基因多态性的分布有自身特点,其分布格局频率介于南、北汉族之间。  相似文献   

2.
肾移植供受者HLA抗原频率的比较   总被引:1,自引:1,他引:0  
目的比较移植供者和受者HLA抗原频率,分析HLA抗原在两者间相配合的概率。方法对1131例移植受者和1101供者进行HLA抗原频率分析,HLA分型采用美国OneLambda公司和德国BIOTEST公司试剂,Ⅰ类采用血清学方法,Ⅱ采用分子生物学PCR—SSP方法。结果在1131例受者和1101例供者中A抗原频率高的有A2、A24、A11、A30、A33,抗原频率分别为0.5305、0.3094、0.3784、0.1194、0.1176和0.5259、0.2761、0.2788、0.1353、0.1208。B抗原频率高的有B7、B13、B35、B60、B61、B46、B51、B62,抗原频率分别为0.1565、0.21839、0.1335、0.1874、0.1017、0.1370、0.1256、0.1264和0.1462、0.2225、0.9810、0.1717、0.1035、0.1580、0.1517、0.1771。DR抗原频率高的有DR15、DR4、DR12、DR7、DR9,抗原频率分别为0.2779、0.2237、0.2387、0.2095、0.2467和0.3124、0.1880、0.2116、0.25158、0.2343。DQ抗原频率高的有DQ5、DQ6、DQ7,抗原频率分别为0.2210、0.2396、0.3664和0.2362、0.3261、0.4015。结论了解肾移植供受者HLA抗原的常见型和稀有型的频率,有利于提高HLA配型的配合率。  相似文献   

3.
目的了解西安地区造血干细胞捐献者HLA-A,B,DR位点基因多态性和单倍型的分布特征。方法采用序列特异性引物扩增法及序列特异性寡核苷酸探针反向杂交法对西安地区7016名造血干细胞捐献者样本进行HLA-A,B,DR位点分型分析。结果西安地区HLA-A,B,DR位点基因频率最高的分别为A*2,A*11,A*24;B*13,B*46,B*15(62);DRB1*15,DRB1*9,DRB1*4。HLA-A与HLA-DR单倍型频率较高的为A2DR9,A2DR15,A2DR12;HLA-B与HLA-DR单倍型频率较高的为B13DR7,B46DR9,B52DR15,而存在显著连锁不平衡的为A30DR7和B54DR4等。结论西安地区人群HLA-A,B,DR基因频率和HLA-A、B分别与HLA-DR构成的单倍型频率分布有一定的趋势。  相似文献   

4.
中华(江苏)骨髓库人群HLA-Ⅰ类抗原的PCR-SSP分型   总被引:3,自引:0,他引:3  
目的分析中华(江苏)骨髓库HLAⅠ类抗原的分布特点。方法采用序列特异性引物(PCR SSP)基因分型技术,对中华(江苏)骨髓库初期的骨髓捐献志愿者的HLA A、B位点上的等位基因作低分辨基因分型,计算HLA A、B的基因频率、由基因分型结果指定的抗原特异性频率(以下简称抗原频率)、HLA A、B位点单倍型频率和连锁不平衡参数,获取中华(江苏)骨髓库HLAⅠ类抗原多态性分布的初步资料。结果中华(江苏)骨髓库志愿者中,A位点抗原频率较高的是A2、A11和A24,分别为0.5087,0.3505和0.3056;而A74的频率最低(0.0009);B位点抗原频率较高的是B13、B46和B60,分别为0.2372,0.1772和0.1603,频率较低的是B78(0.0002)。连锁不平衡参数>0的单倍型有80余种,最常见的单倍型有A33B58、A2B62、A2B13、A33B44、A30B13等。结论了解中华(江苏)骨髓库志愿者HLA遗传学分布特点,为器官或干细胞移植配型和疾病相关性分析提供了有价值的基础性资料。  相似文献   

5.
目的了解中国造血干细胞捐献者资料库吉林分库HLA基因及单体型分布特征。方法采用PCR-SSP、PCR-SSO和PCR-SBT法对吉林分库内10 120份吉林籍汉族捐献者HLA-A、B、DRB1基因低分辨分型,用Excel软件计算HLA基因频率、单倍型频率及其连锁不平衡参数。结果吉林分库内汉族捐献者的HLA-A、B、DRB1基因(含血清学特异性)分别有21、45、13种,频率高的基因是:A*02、A*24、A*11、A*30,B*13、B*60、B*61、B*62、B*35、B*46、B*51,DR*01、DR*03、DR*04、DR*07、DR*09、DR*12、DR*15。HLA单体型分布,两座位连锁频率较高的有:A30-B13、A02-B46、A02-B61、A02-B58,B13-DR07、B13-DR12、B46-DR09、B61-DR09,A2-DR09、A30-DR07、A02-DR12、A02-DR15;三座位连锁频率较高的是:A30-B13-DR07、A02-B46-DR09、A02-B13-DR12、A02-B61-DR09。结论为临床造血干细胞移植寻找合适匹配的供受对,以及吉林地区汉族人群HLA基因多态性与HLA相关疾病的研究提供了有意义的参照数据。  相似文献   

6.
目的:研究广东地区汉族人群人类白细胞抗原Cw座位(human leukocyte antigen-Cw,HLA-—Cw)基因位点的分布频率,并初步探讨其与临床移植的关系。方法:用聚合酶链反应-序列特异引物(polymerase chain reaction-sequence-specific primers,PCR-SSP)方法对103例广东地区汉族人群HLA-Cw位点的基因频率分布进行了研究。结果:广东地区汉族人群的HLA-Cw位点以HLA-Cw01,Cw03,Cw07分布频率较高.广东地区汉族人群的HLA-Cw基因分型和日本及非洲差别较大。除Cw*01外,中国南方的广东地区汉族人群的HLA-Cw基因分型和北方的天津汉族人群也有明显差别。Cw*07在各国及中国不同地区人群中的频率均较高。结论:广东地区汉族人群的HLA-Cw基因分型和其他国家和中国北方地区人群有明显的差别。  相似文献   

7.
辽南地区造血干细胞捐献者HLA基因分布和单倍型分析   总被引:7,自引:3,他引:4  
目的了解辽南汉族造血干细胞捐献者的HLA基因多态性和单倍型的分布特点。方法应用PCR-SSP和PCR-SSO2种方法对辽南地区的9678份样本进行HLA-A、B、DRB1位点的基因分型,并对分型结果作统计学分析。结果辽南地区造血干细胞捐献者HLA基因分型,共检出A位点表型特异性18种,检出率为85.71%;B位点共检出表型特异性41种,检出率为93.18%;DR位点共检出表型特异性13种,检出率为92.86%。基因分布符合Hardy-Weinbery规律(P>0.05)。在HLA单倍型分布中,A30B13、A2B46、A33B58、A30DR7、A33DR13、A2DR10、B13DR7、B46DR9、B52DR15等均具有较高的连锁频率。结论本组数据了解辽南地区,汉族人造血干细胞捐献者的HLA基因分布特点,有利于估计相合供者的概率。  相似文献   

8.
目的 调查山东淄博地区汉族人群HLA基因多态性的分布。方法 采用序列特异性引物PCR(PCR-SSP)方法,对HLA-A、B、DR位点进行低分辨基因分型;用直接计数法进行抗原频率和基因频率计算。结果 得到一组抗原频率和基因频率资料。结论 山东淄博地区汉族人群HLA基因具有多态性,PCR-SSP方法进行HLA分型的结果准确可靠。  相似文献   

9.
目的:研究广东地区汉族人群人类白细胞抗原Cw座位(humanleukocyteantigen-Cw,HLA-Cw)基因位点的分布频率,并初步探讨其与临床移植的关系。方法:用聚合酶链反应-序列特异引物(polymerasechainreaction-se-quence-specificprimers,PCR-SSP)方法对103例广东地区汉族人群HLA-Cw位点的基因频率分布进行了研究。结果:广东地区汉族人群的HLA-Cw位点以HLA-Cw01,Cw03,Cw07分布频率较高,广东地区汉族人群的HLA-Cw基因分型和日本及非洲差别较大。除Cw*01外,中国南方的广东地区汉族人群的HLA-Cw基因分型和北方的天津汉族人群也有明显差别。Cw*07在各国及中国不同地区人群中的频率均较高。结论:广东地区汉族人群的HLA-Cw基因分型和其他国家和中国北方地区人群有明显的差别。  相似文献   

10.
目的 探讨云南地区肾移植受者人类白细胞抗原(HLA)-A、B、DRB1和DQB1位点等位基因分布频率.方法 收集2017年6月至2020年11月该院1251例肾移植受者HLA基因检测结果,分析HLA-A、B、DRB1和DQB1位点等位基因分布频率.结果 HLA-A位点检出等位基因17种,其中A*11、A*02和A*24分布频率较高,分别为0.3145、0.2802和0.1930.HLA-B位点检出等位基因31种,其中B*15、B*40和B*46分布频率较高,分别为0.1926、0.1199和0.1199.HLA-DRB1位点检出等位基因14种,其中DRB1*12、DRB1*04、DRB1*09分布频率较高,分别为0.2178、0.1399和0.1171.HLA-DQB1位点检出等位基因7种,其中DQB10301、DQB1*05和DQB1*06分布频率较高,分别为0.2866、0.2010和0.1671.结论 云南地区肾移植受者HLA-A、B、DRB1和DQB1位点中,A*11、B*15、DRB1*12和DQB10301分别为分布频率最高的等位基因,符合南方汉族人群H LA基因多态性的分布特征.  相似文献   

11.
HLA antigens of the Somali population are not categorised as well as those of other international ethnic groups. We analysed the HLA antigens of 76 unrelated Somalis who lived in the west of England. HLA ‐A, ‐B, ‐C and DRB1 typing was performed by polymerase chain reaction using sequence‐specific oligonucleotide probes (PCR‐SSOP) at a low‐intermediate resolution level. Phenotype frequency, gene frequency and haplotype frequency were used to study the relationship between Somalis and other relevant populations. The antigens with highest frequencies were HLA ‐A1, A2, and A30; B7, B51 and B39; Cw7, Cw16, Cw17, Cw15 and Cw18; DR 13, DR17, DR8 and DR1. HLA haplotypes with high significance and characteristics of the Somali population are B7‐Cw7, B39‐Cw12, B51‐Cw16, B57‐Cw18. The result of HLA class I and class II antigen frequencies show that the Somali population appear more similar to Arab or Caucasoid than to African populations. The results are consistent with hypothesis, supported by cultural and historical evidence, of common origin of the Somali population. This study will serve as a reference for further anthropological studies, as well as studies of associations between HLA and disease.  相似文献   

12.
HLA antigens of the Somali population are not categorised as well as those of other international ethnic groups. We analysed the HLA antigens of 76 unrelated Somalis who lived in the west of England. HLA -A, -B, -C and DRB1 typing was performed by polymerase chain reaction using sequence-specific oligonucleotide probes (PCR-SSOP) at a low-intermediate resolution level. Phenotype frequency, gene frequency and haplotype frequency were used to study the relationship between Somalis and other relevant populations. The antigens with highest frequencies were HLA -A1, A2, and A30; B7, B51 and B39; Cw7, Cw16, Cw17, Cw15 and Cw18; DR 13, DR17, DR8 and DR1. HLA haplotypes with high significance and characteristics of the Somali population are B7-Cw7, B39-Cw12, B51-Cw16, B57-Cw18. The result of HLA class I and class II antigen frequencies show that the Somali population appear more similar to Arab or Caucasoid than to African populations. The results are consistent with hypothesis, supported by cultural and historical evidence, of common origin of the Somali population. This study will serve as a reference for further anthropological studies, as well as studies of associations between HLA and disease.  相似文献   

13.
The frequency of HLA B13, B17, B37 and Cw6 was investigated in 77 patients with psoriasis vulgaris (57 patients with an onset of the disease between 10 and 20 years of age and 20 patients with an onset between 35 and 45 years). A highly significant increase in the frequency of the four HLA antigens tested was found. The highest relative risk was calculated for Cw6 (RR = 8.28). Furthermore, a significant positive association was observed between the presence of Cw6 and an early onset of psoriasis vulgaris.  相似文献   

14.
OBJECTIVE: To compare occurrences of respective HLA class I antigens in patients with sarcoidosis (SA), patients with tuberculosis (TB), and healthy controls in the same ethnic group in Poland. PATIENTS AND METHODS: HLA-A, -B, and -C antigens were determined from 1994 to 1997 by using the National Institutes of Health method in 100 patients with SA, 100 patients with TB, and 100 healthy controls. Frequencies of specific antigens were compared among the 3 groups. RESULTS: Our study showed that among SA patients, the HLA-B51(5) and HLA-B8 antigens tended to be more common and the HLA-B13, -B35, and -Cw4 antigens tended to be less common than in the controls. However, after Bonferroni correction, only the HLA-B35 antigen was found to be significantly different in SA patients and controls. In TB patients, the expression of HLA-B62(15) and HLA-Cw5 antigens tended to be more common compared with controls and HLA-A2 less common compared with controls, but only the differences in B62(15) and Cw5 were significant after Bonferroni correction. HLA-B51(5) and HLA-B8 antigens were statistically more frequent and B13, B62(15), and Cw4 less frequent in SA than in TB patients and remained significant after Bonferroni correction. The occurrence of other antigens studied in both populations was comparable. CONCLUSION: We identified associations of HLA class I antigens in patients with SA or TB, with an expression pattern specific and different for each group.  相似文献   

15.
The mixed lymphocyte reaction (MLR) is the proliferative response of one individual's lymphocytes cultured in the presence of another individual's lymphocytes. In man, the MLR is elicited by cell surface antigens coded for by the HLA-D gene locus. This locus is among a cluster of genes which are located on the sixth chromosome and which include genes coding for the major histocompatibility antigens HLA-A, B, and C as well as HLA-D. If the stimulator cell possesses D locus antigens not present in the responder, the lymphocytes of the latter will undergo blast transformation resulting in DNA synthesis which can be measured. A vigorous response in the MLR to allogeneic cells is the rule among healthy individuals.We describe studies of a 23-yr-old man whose lymphocytes respond normally to mitogens and soluble antigens but fail to respond to allogeneic cells in the MLR. His medical history is unremarkable except that he received thymic irradiation as an infant. HLA typing revealed that he is homozygous for HLA-A2, B12, and Cw5 as well as for the D locus antigen Dw4. When his lymphocytes were added to the responder lymphocytes of other persons homozygous for the same HLA antigens, their responses to allogeneic cells but not mitogens were suppressed by 50-95%. Their responses to a soluble antigen, tetanus toxoid, were suppressed to a lesser degree. These inhibitory effects were mediated by a relatively radioresistant thymus-derived (T) lymphocyte.Further studies of the requirements for MLR suppression revealed that only persons heterozygous or homozygous for the Dw4 antigen were inhibited by the suppressor T cell. This effect was not altered by differences in the HLA-A, B, or C antigens between the suppressor and responder. It is concluded that genes in or near the HLA-D locus code not only for antigens (primarily on bone marrow-derived (B) cells), that elicit the MLR, but also for structures on T cells, or possibly macrophages, which are recognized by MLR suppressor T cells.  相似文献   

16.
This study was designed to identify the target molecules of the natural killer (NK) cell-mediated recognition of normal allogeneic target cells. As previously shown, the gene(s) governing the first NK-defined allospecificity (specificity 1) were found to be localized in the major histocompatibility complex region between BF gene and HLA-A. In addition, the analysis of a previously described family revealed that a donor (donor 81) was heterozygous for three distinct NK-defined allospecificities (specificities 1, 2, and 5). HLA variants were derived from the B-Epstein-Barr virus cell line of donor 81 by gamma irradiation followed by negative selection using monoclonal antibodies specific for the appropriate HLA allele. Several variants were derived that lacked one or more class I antigen expressions. These variants were analyzed for the susceptibility to lysis by NK clones recognizing different allospecificities. The loss of HLA-A did not modify the phenotype (i.e., "resistance to lysis"). On the other hand, a variant lacking expression of all class I antigens became susceptible to lysis by all alloreactive clones. Variants characterized by the selective loss of class I antigens coded for by the maternal chromosome became susceptible to lysis by anti-2-specific clones. Conversely, variants selectively lacking class I antigens coded for by paternal chromosome became susceptible to lysis by anti-1 and anti-5 clones (but not by anti-2 clones). Since the Cw3 allele was lost in the variant that acquired susceptibility to lysis by anti-2 clones and, in informative families, it was found to cosegregate with the character "resistance to lysis" by anti-2 clones, we analyzed whether Cw3 could represent the element conferring selective resistance to lysis by anti-2 clones. To this end, murine P815 cells transfected with HLA Cw3 (or with other HLA class I genes) were used as target cells in a cytolytic assay in which effector cells were represented by alloreactive NK clones directed against different specificities. Anti-2-specific clones efficiently lysed untransfected or A2-, A3-, and A24-transfected P815 cells, while they failed to lyse Cw3-transfected cells. NK clones recognizing specificities other than specificity 2 lysed untransfected or Cw3-transfected cells. Thus, the loss of Cw3 resulted in the de novo appearance of susceptibility to lysis, and transfection of the HLA-negative P815 cells with Cw3 resulted in resistance to lysis by anti-2 clones. Therefore, we can infer that Cw3 expression on (both human and murine) target cells confers selective protection from lysis mediated by anti-2 NK clones.  相似文献   

17.
The antigenic HLA spectra, loci A, B and C, were explored in 102 patients suffering from pneumoconiosis of workers exposed to dust in machine building. Significant frequency differences were discovered in some antigens and their complexes (AI; A I B 8; Bw35 Cw4) between the patients and control group subjects (112 healthy persons). The patients with uncomplicated pneumoconiosis and coniotuberculosis manifested appreciable differences in the antigenic HLA spectra. The authors propose an algorithm of predicting risk at pneumoconiosis as well as risk at coniotuberculosis, resting on the results of the typing of the antigenic HLA spectra.  相似文献   

18.
Study of histocompatibility antigens of the HIA system in 86 patients with rheumatic fever has demonstrated the high rate of the antigens AII, B27, Cw2, 3, Dr5, 7 as compared with control (600 healthy persons). It is therefore necessary to point to the involvement of the HIA system in the formation of proneness to rheumatic fever and its clinical varieties. Special attention should be drawn to the locus HIA C. Histocompatibility antigens associated with rheumatic fever can be viewed as risk factors which should necessarily be taken into account during the conduction of the primary prophylaxis, especially in children coming from the families whose members are afflicted with rheumatic fever as well as in predicting the character of the disease progress and heart disease formation. The presence in the phenotype of A2, AII, B13, 27, Cw2, 3 is associated with a continuously relapsing disease. A10 occurs only in an acute disease marked by a high degree of activity. Mitral diseases are associated with A9, B27, Cw2, 3 whereas aortal distress with AII, B7, 27 and Cw2. B13, Bw35, Cw2 and Dr7 are mostly demonstrable in patients without any heart disease, Dr4 occurs in diseases characterized by minimal activity.  相似文献   

19.
Cytotoxic T lymphocytes (CTL), specific for influenza A/X31 virus, were generated from human peripheral blood lymphocytes. These CTL lysed target cells that were infected with the same virus and that shared HLA A or B locus antigens. Minimal lysis was observed when HLA-D antigens were shared. Not all HLA A and B antigens were equally effective. Efficient lysis of target cells was seen when HLA A1, A3, B7, B8, B27 and BW21 were shared with the CTL, but when HLA A2 was the only shared antigen lysis was usually minimal. This deficiency in CTL function associated with HLA A2 was not absolute. It is suggested that the function of this antigen might be influenced by other surface molecules on the cell and in particular the other HLA products.  相似文献   

20.
目的探讨强直性脊柱炎(A S)患者HLA-B 27位点等位基因相关抗原的表达。方法采用补体依赖性微量淋巴细胞毒法检测418例脊柱关节炎(SpA S)患者和30例正常对照组HLA-B 27相关抗原。结果418例SpA S患者中73例被确诊为A S,其Bw 6、B 27(47)、B 27和B 7/B 27/B 73/B 81抗原阳性率分别为31.1%,28.5%,25.8%和22%。在A S中,B 27阳性组与B 27阴性组间有不同分布,两组B 27(47)、B 27、B 7三种等位基因有统计学意义(P<0.01)。在66例B 27阳性组中,除B 13与Bw 6成负相关外,Bw 4与B 27(47)、B 7与B 27之间等均成明显的正相关。结论在A S患者中,B 13与Bw 6,B 60/61/47/48/81(13),B 7与B 27,Bw 4与B 27(47),Cw 1与B 42/B 45表达联锁失衡,B 27并不是A S易感的唯一因素,其它基因位点可能起增强(如Cw 1及Cw 2)或抑制(如B 13)A S发生的作用。  相似文献   

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