The ability of humoral antibodies to inhibit tumor growth varies with different cell types . 体液抗体抑制肿瘤生长的能力因细胞类型不同而异。
Each type evokes antibodies which protect against the homologous, but not heterologous virus . 每一种抗原型都能产生抗同种病毒的抗体，但对异种病毒则不能。
By this procedure, milstein and kohler developed a hybridoma that made a specific antibody . 米尔斯坦和科勒用此方法培养出一个杂种瘤，后来成为一种特效抗体。
To evade existing antibodies, the virus may change one or several of these antigenic determinants . 为躲避现有的抗体，病毒可能对一个或几个抗原定子加以改变。
The neutralization test is based on the neutralization of virus by specific antibodies found in the serum . 中和试验是基于病毒可被存在于血清中的特异性抗体。
But once the infection is over, antibodies remain in the bloodstream to protect against future attack . 但是一旦感染过后，抗体即留在血液中以防备将来再次的袭击。
The antibody can either neutralize the virus or activate the c system, which lyses virus-infected cells . 抗体或能中和病毒，或能活化补体系统以溶解病毒感染细胞。
A virus can do substantial damage to the body before enough antibodies have been formed to wipe it out . 在尚未形成足够的抗体以消灭病毒之前，这个病毒就能对身体有相当的损害。
Antibodies are produced by the immune system when something foreign, such as viruses or chemicals, invades the body . 抗体是免疫系统在异物（例如病毒或一些化学物质）侵犯机体时所产生的。
If a piece of grafted skin contains an antigen different from the host's, the host will make antibodies against it . 如果一块移植的皮肤含有一种不同于宿主的抗原，宿主将产生抗体来对抗它。
