International Journal of Colorectal Disease

, Volume 22, Issue 3, pp 303–312 | Cite as

(E)-metanicotine hemigalactarate (TC-2403-12) inhibits IL-8 production in cells of the inflamed mucosa

  • Tanja Spoettl
  • Christine Paetzel
  • Hans Herfarth
  • Merouane Bencherif
  • Juergen Schoelmerich
  • Roland Greinwald
  • Gregory J. Gatto
  • Gerhard Rogler
Original Article



Nicotine is of therapeutic value in ulcerative colitis, but its administration is connected with adverse events. Nicotine derivatives are currently being tested to maintain the therapeutic effects and minimize adverse events. TC-2403-12 is a (E)-metanicotine hemigalactarate. The aim of this study was to determine the effectiveness of TC-2403-12 in the inhibition of TNF- and lipopolysaccharide (LPS)-induced cell activation.


Colonic epithelial cells (CEC), monocytes (MM6), granulocytes, and the intestinal epithelial cell line HT-29 were stimulated with TNF and LPS and treated with TC-2403-12. IL-8 secretion in the cell supernatants and NF-κB activation were determined by ELISA. Apoptosis was quantified by flow cytometry.


In MM6 cells, IL-8 secretion was significantly decreased to 30% of control after TC-2403-12 treatment, with best results after pretreatment for 24 h. This decrease in cell activation was not due to apoptosis and was not mediated by inhibition of NF-κB activation. IL-8 production in neutrophils and primary CEC also tended to be decreased after TC-2403-12 treatment. TC-2403-12 had no influence on IL-8 secretion of HT-29 cells.


TC-2403-12 effectively inhibited TNF- and LPS-induced IL-8 production in different cell types. No toxic effects occurred at the concentrations used. Preincubation of cells with TC-2403-12 showed the best effects.


Nicotine derivatives Ulcerative colitis Interleukin-8 Mucosal inflammation Macrophages Epithelial cells 


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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • Tanja Spoettl
    • 1
  • Christine Paetzel
    • 1
  • Hans Herfarth
    • 1
  • Merouane Bencherif
    • 3
  • Juergen Schoelmerich
    • 1
  • Roland Greinwald
    • 2
  • Gregory J. Gatto
    • 3
  • Gerhard Rogler
    • 1
  1. 1.Department of Internal Medicine IUniversity of RegensburgRegensburgGermany
  2. 2.Dr. FALK Pharma GmbHFreiburgGermany
  3. 3.TargaceptWinston-SalemUSA

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