Changes in membrane fluidity induced by binding of immunoglobulins to sperm Fc receptors.
Indian J Exp Biol
;
1998 Mar; 36(3): 253-6
Article
in English
| IMSEAR
| ID: sea-59782
ABSTRACT
Receptors for Fc region of immunoglobulins (FcR) are reported to be present on spermatozoa, and also detected in seminal plasma, however their function is still not known. Since various changes in sperm membrane architecture during maturation and passage through female genital tract are reported, experiments were conducted to study the membrane fluidity changes in sperm subsequent to ligation of surface FcR with immunoglobulin and its derivatives. This paper reports that interaction with IgG restricts rotational mobility of cell surface proteins and membrane lipids as studied by EPR spectroscopy using spin probes. Decrease in fluidity was much more pronounced in the presence of aggregated IgG due to crosslinking of sperm FcR by aggregated IgG.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Rats
/
Spermatozoa
/
Spin Labels
/
Female
/
Male
/
Immunoglobulins
/
Receptors, Fc
/
Cell Membrane
/
Rats, Wistar
/
Electron Spin Resonance Spectroscopy
Language:
English
Journal:
Indian J Exp Biol
Year:
1998
Type:
Article
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