TY - JOUR
T1 - Intestinal lymphoid tissues
T2 - Is variety an asset or a liability?
AU - Newberry, Rodney D.
PY - 2008/3
Y1 - 2008/3
N2 - PURPOSE OF REVIEW: Advances in our understanding of lymphoid tissue development has led to an appreciation of the variety of these structures in the intestinal mucosa. This knowledge has translated into more critical analysis of the function of mucosal lymphoid tissues and may lead to manipulation of development of these structures as a therapeutic modality. This review summarizes recent progress in understanding the variety, formation, and function of these structures. RECENT FINDINGS: The intestinal mucosa and submucosa contain three types of lymphoid tissues ranging from the developmentally determined Peyer's patches to the inflammatory derived tertiary lymphoid tissues. Intermediate to these is a unique lymphoid tissue, isolated lymphoid follicles, which shares properties of both Peyer's patches and tertiary lymphoid tissues. In the healthy intestine, Peyer's patches and isolated lymphoid follicles generate protective and homeostatic immune responses. During chronic inflammation, the function of the more inducible lymphoid tissues, isolated lymphoid follicles and tertiary lymphoid tissues, is unclear, but may include an ominous role propagating inappropriate responses and predisposing to malignancy. SUMMARY: Understanding the variety of lymphoid tissues, how they function, and how they develop may offer strategies to manipulate these structures to optimize mucosal vaccines and treat intestinal inflammatory diseases.
AB - PURPOSE OF REVIEW: Advances in our understanding of lymphoid tissue development has led to an appreciation of the variety of these structures in the intestinal mucosa. This knowledge has translated into more critical analysis of the function of mucosal lymphoid tissues and may lead to manipulation of development of these structures as a therapeutic modality. This review summarizes recent progress in understanding the variety, formation, and function of these structures. RECENT FINDINGS: The intestinal mucosa and submucosa contain three types of lymphoid tissues ranging from the developmentally determined Peyer's patches to the inflammatory derived tertiary lymphoid tissues. Intermediate to these is a unique lymphoid tissue, isolated lymphoid follicles, which shares properties of both Peyer's patches and tertiary lymphoid tissues. In the healthy intestine, Peyer's patches and isolated lymphoid follicles generate protective and homeostatic immune responses. During chronic inflammation, the function of the more inducible lymphoid tissues, isolated lymphoid follicles and tertiary lymphoid tissues, is unclear, but may include an ominous role propagating inappropriate responses and predisposing to malignancy. SUMMARY: Understanding the variety of lymphoid tissues, how they function, and how they develop may offer strategies to manipulate these structures to optimize mucosal vaccines and treat intestinal inflammatory diseases.
KW - Chemokines
KW - Lymphoid tissues
KW - Lymphotoxin
KW - Mucosal immune system
UR - http://www.scopus.com/inward/record.url?scp=40049093414&partnerID=8YFLogxK
U2 - 10.1097/MOG.0b013e3282f4906d
DO - 10.1097/MOG.0b013e3282f4906d
M3 - Review article
C2 - 18301260
AN - SCOPUS:40049093414
SN - 0267-1379
VL - 24
SP - 121
EP - 128
JO - Current opinion in gastroenterology
JF - Current opinion in gastroenterology
IS - 2
ER -