The expression of small heat shock proteins in the microfilaria of Brugia pahangi and their possible role in development. 1992

E Devaney, and A Egan, and E Lewis, and E V Warbrick, and R M Jecock
Liverpool School of Tropical Medicine, UK.

Development of the microfilariae of Brugia pahangi in the mammalian host is blocked until uptake by a mosquito vector when the developmental cycle is re-initiated. Comparison of the profile of polypeptides labelled in microfilariae cultured at mammalian temperature (37 degrees C) or mosquito temperature (28 degrees C) revealed a complex of low-molecular-weight proteins (18 kDa and 22-24 kDa) synthesized only in microfilariae at 37 degrees C. The synthesis of these proteins was also induced by transfer of microfilariae to 41 degrees C (i.e., heat shock conditions), suggesting that these are heat shock proteins. The expression of the small heat shock proteins in the Brugia life cycle is developmentally regulated, as they are not observed in the mature adult female. Their synthesis is strictly temperature dependent and is repressed upon transfer of the microfilariae to 28 degrees C.

UI MeSH Term Description Entries
D008842 Microfilariae The prelarval stage of Filarioidea found in the blood and tissues of mammals, birds and intermediate hosts (vector). Microfilaria
D005849 Gerbillinae A subfamily of the Muridae consisting of several genera including Gerbillus, Rhombomys, Tatera, Meriones, and Psammomys. Gerbils,Jird,Meriones,Psammomys,Rats, Sand,Gerbil,Jirds,Merione,Rat, Sand,Sand Rat,Sand Rats
D006358 Hot Temperature Presence of warmth or heat or a temperature notably higher than an accustomed norm. Heat,Hot Temperatures,Temperature, Hot,Temperatures, Hot
D006360 Heat-Shock Proteins Proteins which are synthesized in eukaryotic organisms and bacteria in response to hyperthermia and other environmental stresses. They increase thermal tolerance and perform functions essential to cell survival under these conditions. Stress Protein,Stress Proteins,Heat-Shock Protein,Heat Shock Protein,Heat Shock Proteins,Protein, Stress
D000330 Aedes A genus of mosquitoes (CULICIDAE) frequently found in tropical and subtropical regions. YELLOW FEVER and DENGUE are two of the diseases that can be transmitted by species of this genus. Aede
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D015801 Helminth Proteins Proteins found in any species of helminth. Helminth Protein,Protein, Helminth,Proteins, Helminth
D017179 Brugia pahangi A species of parasitic nematode found in man and other mammals. It has been reported from Malaya and East Pakistan and may produce symptoms of tropical eosinophilia. Brugia pahangus,pahangus, Brugia

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