opsonin

/op-suh-nin/US // ˈɒp sə nɪn //UK // (ˈɒpsənɪn) //

渗透素,卵磷脂素,卵磷脂酶,卵磷脂蛋白

Definitions

n.名词 noun

1
Immunology.
- : a constituent of normal or immune blood serum that makes invading bacteria more susceptible to the destructive action of the phagocytes.

They appear to be more or less specific, a separate opsonin being necessary for phagocytosis of each species of bacteria.
Opsonin is what you butter the disease germs with to make your white blood corpuscles eat them.
The "opsonin," or "relish," is something exuded into or produced in the blood fluid when the attacking microbe arrives.
Wright proposed for these bodies the name opsonin, derived from a Greek word signifying to prepare a meal for.
In the case of diphtheria, the antitoxin appears to be more efficacious than an opsonin.