Which cells are responsible for producing antibodies when triggered by a vaccine?

The cells responsible for producing antibodies in response to a vaccine are B-lymphocytes. These specialized cells play a crucial role in the adaptive immune response. When a vaccine is introduced into the body, it contains antigens that stimulate the immune system. B-lymphocytes recognize these antigens, become activated, and differentiate into plasma cells, which are responsible for producing large quantities of antibodies specific to the antigen. These antibodies then neutralize the pathogen or mark it for destruction by other components of the immune system.

While erythrocytes (red blood cells) are primarily involved in transporting oxygen and carbon dioxide in the blood, and leukocytes (white blood cells) comprise various immune cells with diverse functions, neither directly produces antibodies. T-lymphocytes, on the other hand, do play a vital role in the immune response, primarily by killing infected host cells and helping B-lymphocytes to produce antibodies, but they do not produce antibodies themselves. Thus, the role of B-lymphocytes is specifically centered around the production of antibodies in response to vaccines.