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Apolipophorin-III expression and low density lipophorin formation during embryonic development of the silkworm, Bombyx mori
被引:13
|作者:
Tsuchida, Kozo
[1
]
Yokoyama, Takeru
[1
]
Sakudoh, Takashi
[1
]
Katagiri, Chihiro
[2
]
Tsurumaru, Shuichiro
[3
]
Takada, Naoko
[1
]
Fujimoto, Hirofumi
[1
]
Ziegler, Rolf
[4
]
Iwano, Hidetoshi
[5
]
Hamano, Kunikatsu
[6
]
Yaginuma, Toshinobu
[3
]
机构:
[1] Natl Inst Infect Dis, Div Radiol Protect & Biol, Tokyo, Japan
[2] Hokkaido Univ, Inst Low Temp Sci, Sapporo, Hokkaido 060, Japan
[3] Nagoya Univ, Grad Sch Bioagr Sci, Nagoya, Aichi 4648601, Japan
[4] Univ Arizona, Dept Entomol, Tucson, AZ 85721 USA
[5] Nihon Univ, Coll Bioresource Sci, Fujisawa, Kanagawa, Japan
[6] Tokyo Univ Agr & Technol, Dept Int Environm & Agr Sci, Fuchu, Tokyo, Japan
来源:
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY
|
2010年
/
155卷
/
04期
关键词:
Lipophorin;
Apolipophorin-III;
Embryonic development;
Lipid metabolism in egg;
LIPID TRANSFER PARTICLE;
MANDUCA-SEXTA;
INSECT APOLIPOPROTEIN;
ADIPOKINETIC HORMONE;
LOCUSTA-MIGRATORIA;
BINDING-PROTEIN;
YOLK FORMATION;
LIPOPROTEIN;
HEMOLYMPH;
TRANSPORT;
D O I:
10.1016/j.cbpb.2009.12.006
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
摘要:
We examined the expression of apolipophorin-III (apoLp-III) during embryonic development of the silkworm Bombyx mori. ApoLp-III mRNA was first expressed 24 h after oviposition, which corresponds to the time of germ band formation. The amount of apoLp-III in the eggs increased from day 2, peaked on day 4, and then gradually decreased until hatching (on day 9.5). ApoLp-III was apparently synthesized during early embryogenesis, as radioactive amino acids were incorporated into newly synthesized apoLp-III in three-day-old eggs. Moreover, radioactive apoLp-III was found only in the embryo and not in the extraembryonic tissue. KBr density gradient ultracentrifugation of egg homogenates showed that apoLp-III was associated with low-density lipophorin (LDLp). These results suggest that LDLp is required for the delivery of lipids for organogenesis during embryogenesis. (C) 2010 Elsevier Inc. All rights reserved.
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页码:363 / 370
页数:8
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