Prediction of antitumour necrosis factor clinical efficacy by real-time visualisation of apoptosis in patients with Crohn's disease

Jan M H Van den Brande*, Tamara C Koehler, Zuzana Zelinkova, Roelof J Bennink, Anje A te Velde, Fibo J W ten Cate, Sander J H van Deventer, Maikel P Peppelenbosch, Daniël W Hommes

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

BACKGROUND: The human anti-tumour necrosis factor (TNF) antibody infliximab binds to the membrane TNF and subsequently induces apoptosis of activated lamina propria T lymphocytes in patients with Crohn's disease in vitro.

AIM: To test whether the ability of rapid anti-TNF-induced apoptosis in the gut predicts the efficacy of anti-TNF treatment in inflammatory bowel disease.

METHODS: (99m)Technetium-annexin V single-photon emission computer tomography (SPECT) was performed in 2 models of murine experimental colitis and in 14 patients with active Crohn's disease as assessed by the Crohńs Disease Activity Index (CDAI) to study the effect of anti-TNF treatment on apoptosis in the intestine during active colitis. Disease activity was evaluated 2 weeks after infliximab infusion using the CDAI (definition response: drop of >100 points).

RESULTS: Colonic uptake of (99m)Tc-annexin V significantly increased in 2,4,6-trinitrobenzene sulphonate-induced colitis as well as in transfer colitis on administration of anti-TNF antibodies compared with a control antibody as determined with dedicated animal pinhole SPECT. In addition, uptake of (99m)Tc-annexin V significantly increased in patients with active Crohn's disease responding to infliximab treatment. Colonic (99m)Tc-annexin V uptake ratio (mean (SEM)) increased from 0.24 (0.03) to 0.41(0.07) (p<0.01), 24 h after infliximab infusion (5 mg/kg). A mean increase of 98.7% in colonic uptake of (99m)Tc-annexin V could be detected in 10 of the 14 responding patients (CDAI >100 points at week 2) compared with 15.2% in non-responding patients (p = 0.03). Analysis of the mucosal biopsy specimens identified lamina propria T cells as target cells undergoing apoptosis.

CONCLUSIONS: These in vivo observations support the notion that colonic uptake of (99m)Tc-annexin V correlates with clinical benefit of anti-TNF treatment and might be predictive of therapeutic success.

Original languageEnglish
Pages (from-to)509-517
Number of pages9
JournalGut
Volume56
Issue number4
DOIs
Publication statusPublished - Apr 2007
Externally publishedYes

Keywords

  • Adult
  • Animals
  • Annexin A5
  • Antibodies, Monoclonal/pharmacology
  • Apoptosis/drug effects
  • CD4-Positive T-Lymphocytes/drug effects
  • Colitis/chemically induced
  • Crohn Disease/diagnostic imaging
  • Disease Models, Animal
  • Female
  • Gastrointestinal Agents/pharmacology
  • Humans
  • Infliximab
  • Intestinal Mucosa/immunology
  • Male
  • Mice
  • Mice, Inbred BALB C
  • Mice, SCID
  • Middle Aged
  • Organotechnetium Compounds
  • Severity of Illness Index
  • Tomography, Emission-Computed, Single-Photon
  • Treatment Outcome
  • Trinitrobenzenesulfonic Acid
  • Tumor Necrosis Factor-alpha/antagonists & inhibitors

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