retikulaarisolujen

Retikulaarisolujen, also known as reticular cells, are specialized fibroblasts found in lymphoid organs such as lymph nodes, spleen, and thymus. They form a network or reticulum that supports the structure of these organs and houses immune cells. These cells are characterized by their stellate or star-like shape and their extensive cytoplasmic processes that interconnect with each other, creating a meshwork. This reticular network serves as a scaffold, providing physical support and facilitating the organization of lymphocytes and other immune cells within the lymphoid tissue.

The reticular cells are responsible for producing and secreting reticular fibers, which are primarily composed of type III collagen. These fibers are crucial for maintaining the integrity and architecture of lymphoid organs. Furthermore, reticular cells can interact with immune cells, influencing their proliferation, differentiation, and function. They can present antigens and secrete cytokines, thereby playing a role in initiating and modulating immune responses. In some contexts, reticular cells are considered part of the stromal component of lymphoid tissues, essential for creating a microenvironment conducive to immune cell activity and development. Their presence and function are vital for the proper operation of the immune system.