Lupocytes are not a recognized term in standard medical or biological literature. However, if you meant "lymphocytes," they are a type of white blood cell critical to the immune system, helping to fight infections and diseases. Lymphocytes are primarily divided into B cells, which produce antibodies, and T cells, which destroy infected cells and help regulate the immune response. If "lupocytes" refers to something specific in a different context, please provide more details for clarification.