Lymphoid neogenesis in melanoma

Lymphoid neogenesis in melanoma

Metastatic melanoma lesions sometimes host ectopic lymphoid structures exhibiting ongoing adaptive immune responses. Here, we discuss how this finding fits in our current view of antitumor immunity.

Lymphoid neogenesis in rheumatoid synovitis.

In rheumatoid arthritis (RA), tissue-infiltrating lymphocytes can be arranged in sophisticated organizations that resemble microstructures usually formed in secondary lymphoid organs. Molecular pathways and host risk factors involved in this process of lymphoid neogenesis remain to be defined. In a series of 64 synovial tissue biopsies, lymphoid follicles with germinal centers (GCs) were found ...

Lymphoid Neogenesis and Tertiary Lymphoid Organs in Transplanted Organs

The progressive organization of immune effectors into functional ectopic lymphoid structures, named tertiary lymphoid organs (TLO), has been observed in many conditions in which target antigens fail to be eliminated by the immune system. Not surprisingly, TLO have been recurrently identified in chronically rejected allografts. Although significant progress has been made over the last decades in...

Ectopic lymphoid neogenesis in psoriatic arthritis.

BACKGROUND Ectopic lymphoid neogenesis (LN) occurs in rheumatoid synovium, where it is thought to drive local antigen-dependent B cell development and autoantibody production. This process involves the expression of specific homing chemokines and the development of high endothelial venules (HEV). OBJECTIVE To investigate whether these mechanisms occur in psoriatic arthritis (PsA) synovium, wh...

L19. Lymphoid neogenesis in vascular chronic inflammation.