Table 1.

Expression sites of human TFF peptides.

TFF Peptides	Exocrine Secretion (Major/Minor)	Endocrine Secretion
TFF1	Stomach, conjunctiva, lacrimal apparatus, salivary glands, lung, urogenitary tract	CNS
TFF2	Stomach, Brunner’s glands, salivary glands	CNS, lymphoid tissues
TFF3	Intestine, salivary glands, lung, uterus, vagina, conjunctiva, lacrimal apparatus, inner ear, esophagus, stomach, gallbladder, Vater’s ampulla, urinary tract	CNS, thyroid, lymphoid tissues, endocrine pancreas

Major expression sites are shown in bold.