How to Use "antigen" with Example Sentences

1. Antigen processing by macrophages precedes recognition of an antigen by lymphocytes .
2. If a helper cell recognises an antigen , it becomes activated .
3. Helper t cells recognize processed antigen and activate the humoral immune response .
4. This process of dna rearrangement is required to build the antigen receptor used by t cells , and permanently marks etps .
5. If less antigen is needed per dose , manufacturers can produce more doses in a shorter time .