Immunohistochemical detection of a very high density lipoprotein (VHDL) in ovarian follicles of Triatoma infestans
Biocell
;
25(1): 23-27, Apr. 2001.
Article
in English
| LILACS
| ID: lil-335888
RESUMO
The ability of Triatoma infestans ovarian follicles to synthesize a very high-density lipoprotein (VHDL) has been examined by immunohistochemical methods. This kind of lipoprotein can be envisaged as a storage hexameric protein present in the hemolymph of some insect species. VHDL immunoreactivity is observed in oocytes at different stages of maturation. The antigen is present in the oocyte cytoplasm as well as in the follicular epithelial cells. The immunopositive reaction in the apical surface of follicle cells suggests both a VHDL synthesis and a secretion process. Furthermore, VHDL seems to be stored into oocyte in yolk granules. On the contrary, no immunopositive reaction is observed in the intracellular spaces between follicle cells, suggesting that VHDL is not incorporated from hemolymph into the oocyte.
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Index:
LILACS (Americas)
Main subject:
Triatoma
/
Insect Proteins
/
Lipoproteins, HDL
Type of study:
Diagnostic study
Limits:
Animals
Language:
English
Journal:
Biocell
Journal subject:
Clulas
Year:
2001
Type:
Article
Affiliation country:
Argentina
Institution/Affiliation country:
Universidad Nacional de La Plata/AR
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