Molecular and cellular mechanisms underlying defective antibody responses

Overview of human B-cell development and antibody deficiencies

B cells are a key component of the humoral (antibody-mediated) immune response which is responsible for defense against a variety of pathogens. Here we provide an overview of the current understanding of B cell development and function and briefly describe inborn errors of immunity associated with B cell development defects which can manifest as immune deficiency, malignancy, autoimmunity, or allergy. The knowledge and application of B cell biology are essential for laboratory evaluation and clinical assessment of these B cell disorders.

B cells: we need them now more than ever

The humoral immune response, that is, the production of antibodies by B cells, is a critical component of immunity to infection and underlies the protection provided by the majority of successful vaccines. This Special Feature explores some of the latest advances in understanding B cell activation and differentiation, as well as how these processes can go wrong in disease.