LMB, or Lymphocyte-Mediated B-cell, refers to a type of immune response involving B-cells, which are a crucial part of the adaptive immune system. These cells are responsible for producing antibodies that help identify and neutralize pathogens like bacteria and viruses. LMB plays a significant role in the body's ability to remember past infections, allowing for a quicker response upon re-exposure to the same pathogen. In addition to their role in immunity, LMB is also important in the development of certain medical therapies, such as monoclonal antibodies. These therapies harness the power of B-cells to target specific diseases, including various types of cancer and autoimmune disorders, enhancing treatment options for patients.