Bureau J F, Le Goff S, Thomas D, Parlow A F, de la Torre J C, Homann D, Brahic M, Oldstone M B
Unite des Virus Lents, URA 1930 CNRS, Institut Pasteur, 75724 Paris Cedex 15, France.
Virology. 2001 Mar 1;281(1):61-6. doi: 10.1006/viro.2000.0800.
Lymphocytic choriomeningitis virus (LCMV) Armstrong strain selectively and persistently infects the majority of growth hormone (GH) producing cells in the anterior lobe of pituitary glands of C3H/St mice but negligibly infects GH producing cells of BALB/WEHI mice (Oldstone et al., Virology 142, 175--182, 1985; Oldstone et al., Science 218, 1125--1127, 1982). Although infected GH cells remain free of structural damage, disrupted initiation of GH transcription (Klavinskis and Oldstone, J. Gen. Virol. 68, 1867--1873, 1989; Valsamakis et al., Virology 156, 214--220, 1987) occurs with a resultant decrease in the synthesis of GH, leading to a failure of growth and development (Oldstone et al., Science 218, 1125--1127, 1982). Microsatellite mapping of DNA obtained from 101 individual C3H/St x BALB/WEHI F1 x F1 mice shows that the growth failure correlates with host genes linked (P value 0.0008) on chromosome 17 just outside of the H-2D MHC site between D17 Mit24 and D17 Mit51, a distance of 2.5 cM. The genetic mapping done here excludes alpha-dystroglycan (alpha-DG), a known receptor for LCMV (Cao et al., Science 282, 2079--2081, 1998) in pathogenesis of GH disease, as alpha-DG is encoded in the mouse by a gene residing on chromosome 9 (Yotsumoto et al., Hum. Mol. Genet. 5, 1259--1267, 1996).
淋巴细胞性脉络丛脑膜炎病毒(LCMV)阿姆斯特朗株选择性地、持续感染C3H/St小鼠垂体前叶中大多数产生生长激素(GH)的细胞,但对BALB/WEHI小鼠产生GH的细胞感染极少(奥尔德斯通等人,《病毒学》142卷,第175 - 182页,1985年;奥尔德斯通等人,《科学》218卷,第1125 - 1127页,1982年)。尽管被感染的GH细胞没有结构损伤,但GH转录起始受到破坏(克拉文斯基斯和奥尔德斯通,《普通病毒学杂志》68卷,第1867 - 1873页,1989年;瓦尔萨马基斯等人,《病毒学》156卷,第214 - 220页,1987年),导致GH合成减少,进而导致生长发育障碍(奥尔德斯通等人,《科学》218卷,第1125 - 1127页,1982年)。对从101只C3H/St×BALB/WEHI F1×F1小鼠个体获得的DNA进行微卫星图谱分析表明,生长发育障碍与位于17号染色体上、H - 2D MHC位点外侧、D17 Mit24和D17 Mit51之间(距离为2.5厘摩)的宿主基因相关(P值为0.0008)。此处进行的基因图谱分析排除了α - dystroglycan(α - DG),它是LCMV在GH疾病发病机制中的已知受体(曹等人,《科学》282卷,第2079 - 2081页,1998年),因为α - DG在小鼠中由位于9号染色体上的一个基因编码(米本等人,《人类分子遗传学》5卷,第1259 - 1267页,1996年)。