Adherence to and penetration of the intestinal epithelium by reovirus type 1 in neonatal mice.
Adherence to and penetration of the intestinal epithelium by reovirus type 1 in neonatal mice.
复制标题
新生小鼠中 1 型呼肠孤病毒对肠上皮的粘附和渗透。
DOI:
10.1016/0016-5085(87)90842-0
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发表时间:
1987
期刊:
影响因子:
29.4
通讯作者:
Trier,JS
中科院分区:
文献类型:
--
作者:
Wolf,JL;Dambrauskas,R;Sharpe,AH;Trier,JS
In 10-day-old suckling and adult mice, reovirus type 1 adheres selectively to and penetrates membranous epithelial (M) cells. To determine when M cells first appear, when they first transport reovirus, and if reovirus adheres to and is endocytosed by other epithelial cells in the first postnatal week, we examined neonatal mouse intestine by transmission electron microscopy after reovirus type 1 exposure. At 2 days M cells accounted for 0.9% of dome epithelial cells. By 9 days M cells had increased to 7.4%. Reovirus type 1 adherence to the surface of villus and dome epithelial cells showed marked variation in 2–6-day-old animals, but by 7 days only a few absorptive cell profiles had adherent reovirus. Adherence to > 50% of M-cell profiles occurred in all but 2 animals, but adherence to the majority of Peyer's patch absorptive cell profiles was present only in some 4- and 5-day-old animals. Adherence to a majority of undifferentiated cell profiles occurred in some animals at all ages. Membranous epithelial cells endocytosed reovirus at all ages but only at 2 days did rare villus and dome absorptive cells endocytose reovirus into the apical cytoplasm. Thus, adherence of reovirus to the apical surface of mucosal epithelial cells is nonselective in newborn mice but becomes more selective within the first postnatal week with adherence by day 7 to most M-celi profiles, to a substantial but variable number of undifferentiated cell profiles, but to few absorptive cell profiles.
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3.7
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Weiner,HL
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通讯作者:
TRIER, JS
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2.7
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M. M. Wilders;T. Sminia;E. Janse
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