Tag: Antigen-Presenting Cells

January 1, 2026 / Mohammed looti

M-CELLS

Introduction to M-Cells and Mucosal Immunity M-cells, or microfold cells, represent a highly specialized and unique subset of antigen-presenting cells (APCs) critical to the function of the mucosal immune system. Unlike typical epithelial cells that form a tight barrier against external threats, M-cells are strategically positioned to sample the vast array of antigens, microorganisms, and […]

September 29, 2025 / Mohammed looti

LANGERHANS CELLS

Langerhans Cells: Sentinels of the Skin’s Immune System The Core Definition: Sentinels of the Epidermis Langerhans cells are a specialized and crucial type of antigen-presenting cell (APC) predominantly found within the epidermis, the outermost layer of the skin. Beyond the skin, these versatile immune cells also inhabit the epithelia of the respiratory tract and various […]