Reduced regulatory T cells with increased proinflammatory response in patients with schizophrenia

Sahbaz C., Zibandey N., Kurtulmus A., Duran Y., Gokalp M., KIRPINAR İ., ...Daha Fazla

PSYCHOPHARMACOLOGY, cilt.237, sa.6, ss.1861-1871, 2020 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 237 Sayı: 6
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1007/s00213-020-05504-0
  • Dergi Adı: PSYCHOPHARMACOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Agricultural & Environmental Science Database, Animal Behavior Abstracts, BIOSIS, CAB Abstracts, CINAHL, EMBASE, Food Science & Technology Abstracts, MEDLINE, Psycinfo, SportDiscus, Veterinary Science Database
  • Sayfa Sayıları: ss.1861-1871
  • Anahtar Kelimeler: Schizophrenia, Regulatory T cell, FoxP3, IL-17A, Adaptive immunity, T cell, 1ST EPISODE, DRUG-NAIVE, GENE-EXPRESSION, CYTOKINE, LYMPHOCYTES, BLOOD, DOPAMINE, PATHWAY, SERUM, METAANALYSIS
  • Marmara Üniversitesi Adresli: Evet

Özet

Aim To investigate whether circulating T cells including regulatory T cells (Treg) and derived cytokines contribute to the immune imbalance observed in schizophrenia. Methods Forty patients with schizophrenia and 40 age, sex, body mass index, education, and smoking status-matched healthy controls (HC) are included in the study. We stained cells with anti-CD14, anti-CD3, anti-CD4, anti-CD8, anti-CD19, anti-CD20, and anti-CD16/56. Peripheral blood mononuclear cells (PBMCs) were isolated and stained with the human FoxP3 kit containing anti-CD4/anti-CD25 and intracellular anti-Foxp3. PBMCs were cultured for 72 h and stimulated with anti-CD3/anti-CD28. Cytokines (IL-2, IL-4, IL-6, IL-10, IFN-gamma, TNF-alpha, and IL-17A) were measured from the culture supernatant and plasma using the Th1/Th2/Th17 cytokine bead array kit. Results In comparison with HC, Treg percentages in schizophrenia were higher (1.17 +/- 0.63 vs 0.81 +/- 0.53, P = 0.005) in unstimulated but lower in the stimulated condition (0.73 +/- 0.69 vs 0.97 +/- 0.55, P = 0.011). Activated T cell percentages were higher in schizophrenia than HC in unstimulated (2.22 +/- 0.78 vs 1.64 +/- 0.89, P = 0.001) and stimulated (2.25 +/- 1.01 vs 1.72 +/- 1.00, P = 0.010) conditions. The culture supernatant levels of IL-6 (7505.17 +/- 5170.07 vs 1787.81 +/- 1363.32, P < 0.001), IL-17A (191.73 +/- 212.49 vs 46.43 +/- 23.99, P < 0.001), TNF-alpha (1557 +/- 1059.69 vs 426.57 +/- 174.62, P = 0.023), and IFN-gamma (3204.13 +/- 1397.06 vs 447.79 +/- 270.13, P < 0.001); and plasma levels of IL-6 (3.83 +/- 3.41vs 1.89 +/- 1.14, P = 0.003) and IL-17A (1.20 +/- 0.84 vs 0.83 +/- 0.53, P = 0.033) were higher in patients with schizophrenia than HC. Conclusion Our explorative study shows reduced level of Foxp3 expressing Treg in a stimulated condition with induced levels of proinflammatory cytokines in patients with schizophrenia.