Embryonic mouse submandibular salivary gland morphogenesis and the TNF/TNF-R1 signal transduction pathway

Anat Rec. 2001 Mar 1;262(3):318-30. doi: 10.1002/1097-0185(20010301)262:3<318::AID-AR1023>3.0.CO;2-3.

Abstract

TNF is a pleiotropic cytokine that modulates cell proliferation and apoptosis. The objective of the present study was to investigate the possible function(s) of the TNF/TNF-R1 signaling pathway in embryonic mouse submandibular salivary gland (SMG) morphogenesis. After characterizing in vivo mRNA and protein expression of various constituents of this pathway, we utilized in vitro experiments to investigate the phenotypic outcomes of enhanced and deficient ligand. The results of these experiments indicate that the TNF/TNF-R1 signal transduction pathway plays an important role in balancing cell proliferation and apoptosis during SMG duct and presumptive acini formation.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Animals
  • Antigens, CD / genetics
  • Antigens, CD / metabolism*
  • Apoptosis
  • Cell Division
  • Culture Techniques
  • Female
  • Immunohistochemistry
  • Mice
  • Pregnancy
  • RNA, Messenger / genetics
  • RNA, Messenger / metabolism
  • Receptors, Tumor Necrosis Factor / genetics
  • Receptors, Tumor Necrosis Factor / metabolism*
  • Receptors, Tumor Necrosis Factor, Type I
  • Signal Transduction
  • Submandibular Gland / cytology
  • Submandibular Gland / embryology*
  • Submandibular Gland / metabolism*
  • Thalidomide / pharmacology
  • Tumor Necrosis Factor-alpha / genetics
  • Tumor Necrosis Factor-alpha / metabolism*
  • Tumor Necrosis Factor-alpha / pharmacology

Substances

  • Antigens, CD
  • RNA, Messenger
  • Receptors, Tumor Necrosis Factor
  • Receptors, Tumor Necrosis Factor, Type I
  • Tumor Necrosis Factor-alpha
  • Thalidomide