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Identification of Mediators of T-cell Receptor Signaling via the Screening of Chemical Inhibitor Libraries
08:49

Identification of Mediators of T-cell Receptor Signaling via the Screening of Chemical Inhibitor Libraries

Published on: January 22, 2019

COX-2 inhibitors can down-regulate in vivo antibody response against T-dependent antigens

Andreea-Roxana Lupu1, Lidia Cremer, Steliana Durbacă

  • 1NIRDMI Cantacuzino, Bucharest-Romania.

Roumanian Archives of Microbiology and Immunology
|September 20, 2007
PubMed

Insights

Non-steroidal anti-inflammatory drugs (NSAIDs) can affect antibody production. Careful consideration is needed when administering T-cell dependent vaccines to patients on anti-inflammatory treatment.

Area of Science:

  • Immunology
  • Pharmacology

Background:

  • Non-steroidal anti-inflammatory drugs (NSAIDs), or cyclooxygenase-2 (COX-2) inhibitors, are known to modulate immune responses.
  • Activated B cells express COX-2, producing prostaglandins (PGs) that influence immunoglobulin production.

Purpose of the Study:

  • To investigate the role of COX-2 and its downstream products in antibody generation in vivo.
  • To assess the impact of COX-2 inhibition on immune responses to T-cell dependent antigens.

Main Methods:

  • Utilized various COX-2 inhibitors in experimental models.
  • Employed a personalized immunization scheme to evaluate antibody responses.
  • Analyzed the role of prostaglandin E2 (PGE2) and E prostanoid receptor (EP-R) in antibody generation.

Main Results:

  • Confirmed that COX-2 inhibitors can modulate in vivo antibody responses against T-cell dependent antigens.
  • Demonstrated the significance of PGE2 and EP-R in the process of antibody generation.
  • Highlighted the influence of anti-inflammatory treatment on vaccine efficacy.

Conclusions:

  • COX-2 pathway plays a crucial role in antibody production against T-cell dependent antigens.
  • Caution is advised when administering vaccines with T-cell dependent antigens (e.g., tetanus, diphtheria anatoxin) to patients undergoing intensive anti-inflammatory therapy.
  • Further research into the interaction between NSAIDs and vaccine responses is warranted.

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