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血清溶血素含量的测定

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2024年3月29日发(作者:蔡悦可)

.血清溶血素含量的测定

1 血清溶血素含量的测定

仪器:离心机、37℃恒温水浴、冰浴、扫描酶标分光光度仪、无菌过滤装置

试剂: 1. 20%压积绵羊红细胞(SRBC)生理盐水细胞混悬液,

2.10%SRBC混悬液,生理盐水,

3.以生理盐水1:10稀释的豚鼠血清1 ml

4.都氏试剂(碳酸氢钠1.0 g、氰化钾0.05g、高铁氰化钾0.2 g、蒸馏水1000 m1)

3 m1

于给药第2天,每鼠腹腔注射20%压积绵羊红细胞(SRBC)生理盐水细胞混悬液0.2

ml,连续给药5天,于最后一次给药后1 h,从小鼠眼眶静脉丛取血,离心分离血清,取

血清用生理盐水稀释500倍,取稀释血清1 ml置试管中,加10%SRBC混悬液0.5 ml,

置冰浴,再加入以生理盐水1:10稀释的豚鼠血清1 ml混合,另设不加血清的空白对照。

移置37℃恒温水浴保温10 min后,立即移冰浴终止反应。用2000r/min离心10 min,

取上清1 ml,加都氏试剂(碳酸氢钠1.0 g、氰化钾0.05g、高铁氰化钾0.2 g、蒸馏水

1000 m1)3 m1,混匀放置10分钟,取上清液用96孔板于扫描酶标分光光度仪540 nm

处比色,测吸光度值(OD)。另取10%SRBC混悬液0.25 ml加都氏试剂3.75 ml,同上测

定OD值,作为半数溶血值。血清溶血素含量以半数溶血值(HC

50

)表示。按下式计算:HC

50

=

样品的OD值/SRBC半数溶血时的OD值×稀释倍数。

淋巴细胞转化

仪器

CO

2

培养箱、离心机、显微镜、无菌过滤装置、组织培养箱。各种吸管

试剂

PHA溶液:称取PHA,用RPMI-1640培养液配成500-1000ug/ml.

RPMI-1640培养液:无菌RPMI-1640培养液中加入20%小牛血清,青霉素(100U/ml)

和链霉素(100ug/ml)用3.5%NaHCO

3

调节PH7.2-7.4,无菌分装,4℃备用

淋巴细胞分离液

抗凝用肝素纳溶液(50U/ml).

方法(详见实验指导P55)

分离抗凝血中的淋巴细胞,将悬液(3×10

6

/ml)注入含PHA的RPMI-1640培养液

小瓶,使PHA最终浓度为50ug/ml,37℃,5%CO

2

培养箱,72h;吸弃2/3上清液,取

底层细胞悬液,移入试管,2000rpm,10min。弃上清,吹打,涂片,干后瑞氏染色,镜

下观察,计算转化率。

结果

转化率=转化的淋巴细胞数(含过渡性)/每份标本淋巴总数*100%

2024年3月29日发(作者:蔡悦可)

.血清溶血素含量的测定

1 血清溶血素含量的测定

仪器:离心机、37℃恒温水浴、冰浴、扫描酶标分光光度仪、无菌过滤装置

试剂: 1. 20%压积绵羊红细胞(SRBC)生理盐水细胞混悬液,

2.10%SRBC混悬液,生理盐水,

3.以生理盐水1:10稀释的豚鼠血清1 ml

4.都氏试剂(碳酸氢钠1.0 g、氰化钾0.05g、高铁氰化钾0.2 g、蒸馏水1000 m1)

3 m1

于给药第2天,每鼠腹腔注射20%压积绵羊红细胞(SRBC)生理盐水细胞混悬液0.2

ml,连续给药5天,于最后一次给药后1 h,从小鼠眼眶静脉丛取血,离心分离血清,取

血清用生理盐水稀释500倍,取稀释血清1 ml置试管中,加10%SRBC混悬液0.5 ml,

置冰浴,再加入以生理盐水1:10稀释的豚鼠血清1 ml混合,另设不加血清的空白对照。

移置37℃恒温水浴保温10 min后,立即移冰浴终止反应。用2000r/min离心10 min,

取上清1 ml,加都氏试剂(碳酸氢钠1.0 g、氰化钾0.05g、高铁氰化钾0.2 g、蒸馏水

1000 m1)3 m1,混匀放置10分钟,取上清液用96孔板于扫描酶标分光光度仪540 nm

处比色,测吸光度值(OD)。另取10%SRBC混悬液0.25 ml加都氏试剂3.75 ml,同上测

定OD值,作为半数溶血值。血清溶血素含量以半数溶血值(HC

50

)表示。按下式计算:HC

50

=

样品的OD值/SRBC半数溶血时的OD值×稀释倍数。

淋巴细胞转化

仪器

CO

2

培养箱、离心机、显微镜、无菌过滤装置、组织培养箱。各种吸管

试剂

PHA溶液:称取PHA,用RPMI-1640培养液配成500-1000ug/ml.

RPMI-1640培养液:无菌RPMI-1640培养液中加入20%小牛血清,青霉素(100U/ml)

和链霉素(100ug/ml)用3.5%NaHCO

3

调节PH7.2-7.4,无菌分装,4℃备用

淋巴细胞分离液

抗凝用肝素纳溶液(50U/ml).

方法(详见实验指导P55)

分离抗凝血中的淋巴细胞,将悬液(3×10

6

/ml)注入含PHA的RPMI-1640培养液

小瓶,使PHA最终浓度为50ug/ml,37℃,5%CO

2

培养箱,72h;吸弃2/3上清液,取

底层细胞悬液,移入试管,2000rpm,10min。弃上清,吹打,涂片,干后瑞氏染色,镜

下观察,计算转化率。

结果

转化率=转化的淋巴细胞数(含过渡性)/每份标本淋巴总数*100%

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File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1096, humandate(1723750869)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(27))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
Error[2]: Trying to access array offset on value of type int, File: /www/wwwroot/www.usbmi.com/xiunophp/xiunophp.min.php, Line: 54
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1095, humandate(1725778006)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(26))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
Error[2]: Trying to access array offset on value of type int, File: /www/wwwroot/www.usbmi.com/xiunophp/xiunophp.min.php, Line: 54
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 1096, humandate(1725778006)
File: /www/wwwroot/www.usbmi.com/tmp/model_thread.func.php, Line: 662, well_thread_format(array(27))
File: /www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm, Line: 249, well_thread_find_asc(array(20) , 20)
File: /www/wwwroot/www.usbmi.com/tmp/route_read.php, Line: 204, include(/www/wwwroot/www.usbmi.com/tmp/view_template_d8_htm_read.htm)
File: /www/wwwroot/www.usbmi.com/tmp/index.inc.php, Line: 129, include(/www/wwwroot/www.usbmi.com/tmp/route_read.php)
File: /www/wwwroot/www.usbmi.com/index.php, Line: 29, include(/www/wwwroot/www.usbmi.com/tmp/index.inc.php)
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