乙肝核心抗体在慢性HBV感染过程中的免疫调节和作用机制研究
发布时间:2021-12-10 07:52
背景和目的慢性乙型病毒性肝炎患者需要长期抗病毒治疗,与目前抗病毒药物治疗效果欠佳和患者免疫无法完全控制病毒复制有关。寻找预测抗病毒治疗疗效的指标对于慢性乙型病毒性肝炎患者的治疗是十分必要的。既往研究报道发现抗病毒治疗前基线HBV DNA载量、HBsAg和HBeAg定量可以预测干扰素或核苷类药物治疗的疗效,但是它们均为反映患者体内病毒量的预测指标。最近,许多研究发现治疗前基线核心抗体(Anti-HBc)水平可以有效预测干扰素和核苷类药物治疗慢性乙型病毒性肝炎患者的疗效。Anti-HBc是针对乙肝核心抗原(HBcAg)的特异性抗体,其在慢性HBV感染患者中升高的原因,及其与HBcAg表达的关系未有明确报道。Anti-HBc水平与患者抗病毒治疗效果相关是因为其能反映机体针对HBV特异性免疫反应水平还是具有直接的抗病毒功能,仍有待进一步探讨。因此,本课题研究目的是通过研究Anti-HBc亚型以及线性表位以了解其特点,通过体外实验和动物实验研究Anti-HBc产生的机制,接下来通过分析宿主免疫反应水平和Anti-HBc之间的关系来阐明Anti-HBc水平预测抗病毒疗效的原因,最后通过慢乙肝患者抗...
【文章来源】:南方医科大学广东省
【文章页数】:107 页
【学位级别】:博士
【部分图文】:
图1-1不同IgG亚型抗体的特点??7??
阳性和健康人群(图1-2?A)。在慢性HBV感染不同免疫分期患者中,肝炎活动??的eAg+CHep和eAg-CHep期患者,总Anti-HBc水平明显高于eAg+CInf和??eAg-CInf期(图1-2B)。结果说明Anti-HBc水平在慢性HBV感染过程中存在??明显差异,在肝脏炎症发生时明显升高。??A?B??***??I?I????***?1?1??|?■?6-?***??i;{^?i:,?讓士??r.?卜?基??%2-??n==?:?7?/,/,??图1-2?Anti-HBc定量水平在HBV感染不同时期的变化。(A)比较慢性HBV感染患者、既??往感染志愿者和健康志愿者Anti-HBc定量水平;(B)比较不同免疫分期慢性HBV感染患??者?Anti-HBc?定量水平。*,P<0.05;?**,p<0.01;?***,p<0.001。??Figure?1-2?Distribution?of?serum?quantitative?Anti-HBc?levels?(qAnti-HBc)?during?different??phases?of?HBV?infection.?(A)?Comparison?of?qAnti-HBc?among?chronic?HBV?infected?patients,??PBI?donors?and?HCs.?(B)?Comparison?of?qAnti-HBc?among?different?phases?of?chronic?HBV??infected?patients.?*,P<0.05;?**,p<0.01;?***,p<0.001?〇??1
为了检测Anti-HBc是否存在不同的抗原表位,我们使用时间分辨荧光检测??法和铀标记HBcAg作为二抗。结果显示,肝炎活动的CHep期患者对??3-6,9-11,14,17-18号肽段反应阳性率升髙(图1-4A),且阳性率达到50%以上,??而非肝炎活动的CInf期患者对这些肽段的阳性率在40%以下。接着,我们比较??肝炎活动和非肝炎活动患者对不同肽段的荧光强度,结果发现,肝炎活动患者??Anti-HBc针对3-7,9-11,13-15,17-18号肽段的反应明显强于非肝炎活动患者(图??15??
【参考文献】:
期刊论文
[1]Models for predicting hepatitis B e antigen seroconversion in response to interferon-α in chronic hepatitis B patients[J]. Chang-Tai Wang,Ya-Fei Zhang,Bing-Hu Sun,Yu Dai,Hui-Lan Zhu,Yuan-Hong Xu,Meng-Ji Lu,Dong-Liang Yang,Xu Li,Zhen-Hua Zhang. World Journal of Gastroenterology. 2015(18)
[2]《科学-转化医学》:研究发现能有效进入癌细胞内部抗体[J]. 现代生物医学进展. 2013(12)
[3]抗体进入细胞的过程[J]. 生物技术世界. 2011(02)
[4]The Study of IgG Subclass Profiles of Anti-HBc in Populations with Different Status of HBV Infection[J]. Yu-Yen Yang~1 Chien-Fu Huang~2 James Cheng-Chung Wei~3 Mei-Shang Ho~4 Lina Wang~5 Shyh-Jye Lin~5 Wei-Yu Tsai~5 Chien-Chou Lin~6 Fangling Xu~(5,7) Chi-Chiang Yang~(5,7,8) ~1Department of Medical Research,Show Chwan Memorial Hospital,Changhua,China Taiwan;~2Department of Biological Science and Technology,I-Shou University,Kaoshiung,China Taiwan;~3Division of Allergy,Immunology and Rheumatology,Chung Shan Medical University Hospital,Taichung,China Taiwan;~4Institute of Biomedical Sciences,Academia Sinica,Taipei 11529,China Taiwan;~5School of Medical Laboratory and Biotechnology,Chung Shan Medical University,Taichung,China Taiwan;~6Division of Laboratory Research and Development,Center for Disease Control,Department of Health,Kaoshiung,China Taiwan;~7Institute of Virology,Medical College,Wuhan University,Wuhan 430071,Hubei,China; School of Medical Laboratory and B(?)otechnology,Chung Shan Medical University,110,Section 1,Chien-Kuo North Road,Taichung,40203,China Taiwan.. Cellular & Molecular Immunology. 2005(05)
本文编号:3532193
【文章来源】:南方医科大学广东省
【文章页数】:107 页
【学位级别】:博士
【部分图文】:
图1-1不同IgG亚型抗体的特点??7??
阳性和健康人群(图1-2?A)。在慢性HBV感染不同免疫分期患者中,肝炎活动??的eAg+CHep和eAg-CHep期患者,总Anti-HBc水平明显高于eAg+CInf和??eAg-CInf期(图1-2B)。结果说明Anti-HBc水平在慢性HBV感染过程中存在??明显差异,在肝脏炎症发生时明显升高。??A?B??***??I?I????***?1?1??|?■?6-?***??i;{^?i:,?讓士??r.?卜?基??%2-??n==?:?7?/,/,??图1-2?Anti-HBc定量水平在HBV感染不同时期的变化。(A)比较慢性HBV感染患者、既??往感染志愿者和健康志愿者Anti-HBc定量水平;(B)比较不同免疫分期慢性HBV感染患??者?Anti-HBc?定量水平。*,P<0.05;?**,p<0.01;?***,p<0.001。??Figure?1-2?Distribution?of?serum?quantitative?Anti-HBc?levels?(qAnti-HBc)?during?different??phases?of?HBV?infection.?(A)?Comparison?of?qAnti-HBc?among?chronic?HBV?infected?patients,??PBI?donors?and?HCs.?(B)?Comparison?of?qAnti-HBc?among?different?phases?of?chronic?HBV??infected?patients.?*,P<0.05;?**,p<0.01;?***,p<0.001?〇??1
为了检测Anti-HBc是否存在不同的抗原表位,我们使用时间分辨荧光检测??法和铀标记HBcAg作为二抗。结果显示,肝炎活动的CHep期患者对??3-6,9-11,14,17-18号肽段反应阳性率升髙(图1-4A),且阳性率达到50%以上,??而非肝炎活动的CInf期患者对这些肽段的阳性率在40%以下。接着,我们比较??肝炎活动和非肝炎活动患者对不同肽段的荧光强度,结果发现,肝炎活动患者??Anti-HBc针对3-7,9-11,13-15,17-18号肽段的反应明显强于非肝炎活动患者(图??15??
【参考文献】:
期刊论文
[1]Models for predicting hepatitis B e antigen seroconversion in response to interferon-α in chronic hepatitis B patients[J]. Chang-Tai Wang,Ya-Fei Zhang,Bing-Hu Sun,Yu Dai,Hui-Lan Zhu,Yuan-Hong Xu,Meng-Ji Lu,Dong-Liang Yang,Xu Li,Zhen-Hua Zhang. World Journal of Gastroenterology. 2015(18)
[2]《科学-转化医学》:研究发现能有效进入癌细胞内部抗体[J]. 现代生物医学进展. 2013(12)
[3]抗体进入细胞的过程[J]. 生物技术世界. 2011(02)
[4]The Study of IgG Subclass Profiles of Anti-HBc in Populations with Different Status of HBV Infection[J]. Yu-Yen Yang~1 Chien-Fu Huang~2 James Cheng-Chung Wei~3 Mei-Shang Ho~4 Lina Wang~5 Shyh-Jye Lin~5 Wei-Yu Tsai~5 Chien-Chou Lin~6 Fangling Xu~(5,7) Chi-Chiang Yang~(5,7,8) ~1Department of Medical Research,Show Chwan Memorial Hospital,Changhua,China Taiwan;~2Department of Biological Science and Technology,I-Shou University,Kaoshiung,China Taiwan;~3Division of Allergy,Immunology and Rheumatology,Chung Shan Medical University Hospital,Taichung,China Taiwan;~4Institute of Biomedical Sciences,Academia Sinica,Taipei 11529,China Taiwan;~5School of Medical Laboratory and Biotechnology,Chung Shan Medical University,Taichung,China Taiwan;~6Division of Laboratory Research and Development,Center for Disease Control,Department of Health,Kaoshiung,China Taiwan;~7Institute of Virology,Medical College,Wuhan University,Wuhan 430071,Hubei,China; School of Medical Laboratory and B(?)otechnology,Chung Shan Medical University,110,Section 1,Chien-Kuo North Road,Taichung,40203,China Taiwan.. Cellular & Molecular Immunology. 2005(05)
本文编号:3532193
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