Balance of Treg versus T-effector cells during systemic treatment with adalimumab and topical treatment with calcipotriol-betamethasone dipropionate ointment.

Abstract:

:Diminished suppressive capacity of regulatory T cells (Treg) has been demonstrated in blood and in lesional skin of psoriatic patients. Treatment with anti-TNFα restored the number and function of circulating Treg in psoriasis. We aimed to study Treg in the skin of psoriatic patients undergoing topical treatment with calcipotriol-betamethasone dipropionate (CBD) ointment (n = 12) or systemic treatment with anti-TNFα agent adalimumab (n = 10). Skin biopsies were collected from patients with chronic plaque psoriasis who responded to the above-mentioned treatments with a SUM-score improvement of at least 50% (at the end of treatment). Biopsies were processed for immunohistochemistry. As Treg function is associated with a numerical balance between Treg and effector T cells, Foxp3/CD4 ratios were calculated. It appeared that both treatments cause a significant decrease in the presence of Foxp3+ cells. However, in patients that were treated with CBD ointment, we observed lower Foxp3/CD4 ratios after 8 weeks of treatment compared to baseline (t = 0: 0.41 ± 0.08; t = 8: 0.22 ± 0.04, P = 0.033), whereas in patients who were treated with adalimumab we observed an increase of the Foxp3/CD4 ratios after 1.5 and 16 weeks of treatment compared to baseline (t = 0: 0.25 ± 0.04; t = 1.5: 0.32 ± 0.06; t = 16: 0.49 ± 0.10, P = 0.15). Based on Foxp3/CD4 ratios, we can conclude that adalimumab treated skin differs from CBD treated skin with regard to the anti-inflammatory/inflammatory balance. We suggest that, in contrast to CBD ointment, adalimumab favours local Treg function in the skin.

journal_name

Exp Dermatol

journal_title

Experimental dermatology

authors

Keijsers RR,Joosten I,Hendriks AG,Koenen HJ,van Erp PE,van de Kerkhof PC

doi

10.1111/exd.12575

subject

Has Abstract

pub_date

2015-01-01 00:00:00

pages

65-7

issue

1

eissn

0906-6705

issn

1600-0625

journal_volume

24

pub_type

信件
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