Affinity-Dependent Alterations of Mouse B Cell Development by Noninherited Maternal Antigen1

Affinity-Dependent Alterations of Mouse B Cell Development by Noninherited Maternal Antigen1
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非遗传性母体抗原 1 对小鼠 B 细胞发育的亲和力依赖性改变

DOI:
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发表时间:
2005
影响因子:
3.6
通讯作者:
C. Kanellopoulos‐Langevin
C. Kanellopoulos‐Langevin
中科院分区:
生物学2区
文献类型:
--
作者:
C. Vernochet;S. Caucheteux;M. Gendron;J. Wantyghem;C. Kanellopoulos‐Langevin

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摘要我们研究了小鼠妊娠期和产后母体细胞进入胎儿的传代情况。使用增强型绿色荧光蛋白(EGFP)转基因雌性,我们发现,母体细胞经常获得胎儿,主要是在同基因妊娠,但也在异基因和远交杂交。EGFP转基因细胞,包括B、T和自然杀伤细胞,可以持续到成年,主要在骨髓和胸腺中。然后,我们研究了携带非胎儿遗传抗原的母体细胞是否影响胎儿和新生儿B淋巴细胞的发育。我们使用了B细胞受体3-83 µ/δ转基因小鼠模型,其B细胞分别以高或中等亲和力识别主要组织相容性复合物I类分子H-2Kk和H-2K B b。在妊娠期和哺乳期暴露于非遗传性H-2Kk或H-2K B母源抗原(NIMA)的动物中,转基因B细胞的命运与未暴露的对照组进行了比较。在H-2 KK暴露的胎儿中,在妊娠晚期,NIMA特异性转基因B细胞部分缺失。非缺失细胞下调了它们的B细胞受体。相反,在NIMA H-2KB暴露的新生儿中,转基因B细胞呈现活化表型,包括增殖、表面CD 69上调和优先定位于脾滤泡的T细胞区。直到3周龄时,这种激活状态仍然可以明显检测到。因此,我们发现胎儿和新生儿B细胞的发育受到携带胎儿非遗传性抗原的母体细胞的影响,并且这种现象高度依赖于B细胞受体对NIMA的亲和力。
Abstract We have examined the passage of maternal cells into the fetus during the gestation and postpartum in mice. Using enhanced green fluorescent protein (EGFP)-transgenic females, we showed that maternal cells frequently gain access to the fetus, mostly in syngeneic pregnancies, but also in allogeneic and outbred crosses. EGFP-transgenic cells, including B, T, and natural killer cells, can persist until adulthood, primarily in bone marrow and thymus. We then asked whether maternal cells, bearing antigens not inherited by the fetus, influence the development of fetal and neonatal B lymphocytes. We have used the B cell receptor 3-83 µ/δ transgenic mouse model, whose B cells recognize the major histocompatibility complex class I molecules H-2Kk and H-2Kb, with a high or moderate affinity, respectively. The fate of transgenic B cells in animals exposed to noninherited H-2Kk or H-2Kb maternal antigens (NIMA) during gestation and lactation was compared with those of nonexposed controls. In H-2Kk-exposed fetuses, NIMA-specific transgenic B cells are partially deleted during late gestation. Nondeleted cells have downmodulated their B cell receptor. In contrast, in NIMA H-2Kb-exposed neonates, transgenic B cells present an activated phenotype, including proliferation, upregulation of surface CD69, and preferential localization in the T cell zone of splenic follicles. This state of activation is still clearly detectable up to 3 wk of age. Thus, we show that fetal and neonatal B cell development is affected by maternal cells bearing antigens noninherited by the fetus and that this phenomenon is highly dependent on the affinity of the B cell receptor for the NIMA.
人类免疫缺陷病毒感染的淋巴细胞粘附到胎儿胎盘细胞:母体->胎儿传播模型。
DOI: 10.1073/pnas.92.4.978
发表时间: 1995
影响因子: 11.1
作者:
Schwartz,DH;Sharma,UK;Perlman,EJ;Blakemore,K
通讯作者: Blakemore,K
DOI: 10.1016/s1074-7613(00)80029-1
发表时间: 1999-03-01
期刊: IMMUNITY
影响因子: 32.4
作者:
Sandel, PC;Monroe, JG
通讯作者: Monroe, JG
DOI: 10.1016/s1074-7613(00)80395-7
发表时间: 1997-12-01
期刊: IMMUNITY
影响因子: 32.4
作者:
Pelanda, R;Schwers, S;Rajewsky, K
通讯作者: Rajewsky, K
DOI: 10.1182/blood.v93.6.2033.406k18_2033_2037
发表时间: 1999-03-15
期刊: BLOOD
影响因子: 20.3
作者:
Evans, PC;Lambert, N;Nelson, JL
通讯作者: Nelson, JL
通过对荧光激活细胞分选仪分离的 T 细胞亚群和 Epstein Barr 病毒衍生的 B 细胞系进行 HLA 分型,鉴定无并发症的严重联合免疫缺陷中的循环母体 T 和 B 淋巴细胞。
DOI: --
发表时间: 1983
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Geha,RS;Reinherz,E
通讯作者: Reinherz,E