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Tocilizumab modulates serum levels of adiponectin and chemerin in patients with rheumatoid arthritis: potential cardiovascular protective role of IL-6 inhibition

1, 2, 3, 4, 5, 6, 7, 8, 9

 

  1. Rheumatology Unit, Azienda Ospedaliera Universitaria Senese, Policlinico Le Scotte, Siena, Italy. fioravanti7@virgilio.it
  2. Rheumatology Unit, Azienda Ospedaliera Universitaria Senese, Policlinico Le Scotte, Siena, Italy.
  3. Rheumatology Unit, Azienda Ospedaliera Universitaria Senese, Policlinico Le Scotte, Siena, Italy.
  4. Rheumatology Unit, S.Giovanni di Dio Hospital, Florence, Italy.
  5. Rheumatology Unit, S.Giovanni di Dio Hospital, Florence, Italy.
  6. Rheumatology Unit, S.Giovanni di Dio Hospital, Florence, Italy.
  7. Rheumatology Unit, Azienda Ospedaliera Universitaria Senese, Policlinico Le Scotte, Siena, Italy.
  8. Rheumatology Unit, Azienda Ospedaliera Universitaria Senese, Policlinico Le Scotte, Siena, Italy.
  9. Rheumatology Unit, S.Giovanni di Dio Hospital, Florence, Italy.

CER11189
2019 Vol.37, N°2
PI 0293, PF 0300
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PMID: 30148441 [PubMed]

Received: 19/02/2018
Accepted : 04/06/2018
In Press: 27/08/2018
Published: 19/03/2019

Abstract

OBJECTIVES:
Adipokines play an important role in the pathophysiology of rheumatoid arthritis (RA), provide a link between the disease and overweight, contributing to explain the enhanced cardiovascular (CV) risk and influence the response to disease-modifying anti-rheumatic drugs. The aim of this study was to determine the possible effects of intravenous (IV) tocilizumab (TCZ), an interleukin-6 receptor antagonist, on serum levels of leptin, adiponectin, resistin, visfatin, and chemerin.
METHODS:
Forty-four RA patients with active disease (DAS28-ESR ≥3.2) were treated with IV TCZ (8 mg/kg) once every 4 weeks for six months: 20 patients received TCZ as monotherapy and 24 in association with methotrexate (MTX). At baseline and monthly, before each infusion, body mass index, DAS28-ESR and Health Assessment Questionnaire (HAQ) were recorded. The laboratory parameters, including the adipokines serum levels were collected at baseline and after six months.
RESULTS:
At the end of the follow-up, ESR, CRP, DAS28-ESR and HAQ resulted significantly improved in patients received TCZ as monotherapy or combined with MTX. Lipid profile showed only a significant increase of total cholesterol. A significant reduction of chemerin and an increase of adiponectin were observed in the whole population and in the subgroups of the patients analysed (TCZ mono or combined therapy) without any significant correlations with clinical and biochemical parameters. No changes in the leptin and resistin levels were detected.
CONCLUSIONS:
TCZ is able to regulate serum levels of chemerin and adiponectin in RA patients, independently of the disease treatment response, which contributes to explain the CV safety of TCZ.

Rheumatology Article